diff --git a/doc/changelog.qmd b/doc/changelog.qmd
index 372019406..feb2569b9 100644
--- a/doc/changelog.qmd
+++ b/doc/changelog.qmd
@@ -60,6 +60,12 @@ title: Changelog
   layer(geom=geom_point())
   ```
 
+- `geom.DEFAULT_PARAMS` now implicitly includes `stat="identity"`, `position="identity`
+  and `na_rm=False`.
+
+- `stat.DEFAULT_PARAMS` now implicitly includes `geom="blank"`, `position="identity`
+  and `na_rm=False`.
+
 ### Bug Fixes
 
 - Fixed [](:class:`~plotnine.geom_smooth`) / [](:class:`~plotnine.stat_smooth`) when using a linear model via "lm" with weights for the model to do a weighted regression. This bug did not affect the formula API of the linear model. ({{< issue 1005 >}})
diff --git a/plotnine/doctools.py b/plotnine/doctools.py
index 4aa23a89b..ff9a4fb89 100644
--- a/plotnine/doctools.py
+++ b/plotnine/doctools.py
@@ -3,11 +3,11 @@
 import itertools
 import os
 import re
-import typing
 from functools import lru_cache
 from textwrap import dedent, indent
+from typing import TYPE_CHECKING
 
-if typing.TYPE_CHECKING:
+if TYPE_CHECKING:
     from typing import Any, Sequence, Type, TypeVar
 
     from plotnine.geoms.geom import geom
@@ -429,13 +429,15 @@ def document_geom(geom: type[geom]) -> type[geom]:
     It replaces `{usage}`, `{common_parameters}` and
     `{aesthetics}` with generated documentation.
     """
+    from plotnine.geoms.geom import _BASE_PARAMS
+
     docstring = dedent(geom.__doc__ or "")
     docstring = append_to_section(geom_kwargs, docstring, "Parameters")
 
     # usage
     signature = make_signature(
         geom.__name__,
-        geom.DEFAULT_PARAMS,
+        _BASE_PARAMS | geom.DEFAULT_PARAMS,
         common_geom_params,
         common_geom_param_values,
     )
@@ -479,6 +481,8 @@ def document_stat(stat: type[stat]) -> type[stat]:
     It replaces `{usage}`, `{common_parameters}` and
     `{aesthetics}` with generated documentation.
     """
+    from plotnine.stats.stat import _BASE_PARAMS
+
     # Dedented so that it lineups (in sphinx) with the part
     # generated parts when put together
     docstring = dedent(stat.__doc__ or "")
@@ -487,7 +491,7 @@ def document_stat(stat: type[stat]) -> type[stat]:
     # usage:
     signature = make_signature(
         stat.__name__,
-        stat.DEFAULT_PARAMS,
+        _BASE_PARAMS | stat.DEFAULT_PARAMS,
         common_stat_params,
         common_stat_param_values,
     )
diff --git a/plotnine/geoms/annotation_logticks.py b/plotnine/geoms/annotation_logticks.py
index 33513e0f6..57494b23c 100644
--- a/plotnine/geoms/annotation_logticks.py
+++ b/plotnine/geoms/annotation_logticks.py
@@ -33,9 +33,6 @@ class _geom_logticks(geom_rug):
 
     DEFAULT_AES = {}
     DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
         "sides": "bl",
         "alpha": 1,
         "color": "black",
diff --git a/plotnine/geoms/annotation_stripes.py b/plotnine/geoms/annotation_stripes.py
index d9b540d2a..e4c8254c7 100644
--- a/plotnine/geoms/annotation_stripes.py
+++ b/plotnine/geoms/annotation_stripes.py
@@ -82,9 +82,6 @@ class _geom_stripes(geom):
     DEFAULT_AES = {}
     REQUIRED_AES = set()
     DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
         "color": None,
         "fill": ("#AAAAAA", "#CCCCCC"),
         "linetype": "solid",
diff --git a/plotnine/geoms/geom.py b/plotnine/geoms/geom.py
index 38ff079b6..f172e6a9e 100644
--- a/plotnine/geoms/geom.py
+++ b/plotnine/geoms/geom.py
@@ -33,6 +33,13 @@
     from plotnine.typing import DataLike
 
 
+_BASE_PARAMS: dict[str, Any] = {
+    "stat": "identity",
+    "position": "identity",
+    "na_rm": False,
+}
+
+
 class geom(ABC, metaclass=Register):
     """Base class of all Geoms"""
 
@@ -82,11 +89,12 @@ def __init__(
         self._raw_kwargs = kwargs  # Will be used to create stat & layer
 
         # separate aesthetics and parameters
+        possible_params = _BASE_PARAMS | self.DEFAULT_PARAMS
         self.aes_params = {
             ae: kwargs[ae] for ae in self.aesthetics() & set(kwargs)
         }
-        self.params = self.DEFAULT_PARAMS | {
-            k: v for k, v in kwargs.items() if k in self.DEFAULT_PARAMS
+        self.params = possible_params | {
+            k: v for k, v in kwargs.items() if k in possible_params
         }
         self.mapping = kwargs["mapping"]
         self.data = kwargs["data"]
@@ -459,7 +467,7 @@ def handle_na(self, data: pd.DataFrame) -> pd.DataFrame:
         """
         return remove_missing(
             data,
-            self.params["na_rm"],
+            self.params.get("na_rm", False),
             list(self.REQUIRED_AES | self.NON_MISSING_AES),
             self.__class__.__name__,
         )
diff --git a/plotnine/geoms/geom_abline.py b/plotnine/geoms/geom_abline.py
index 823d099da..ca0a64448 100644
--- a/plotnine/geoms/geom_abline.py
+++ b/plotnine/geoms/geom_abline.py
@@ -43,12 +43,7 @@ class geom_abline(geom):
         "alpha": 1,
         "size": 0.5,
     }
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "inherit_aes": False,
-    }
+    DEFAULT_PARAMS = {"inherit_aes": False}
     REQUIRED_AES = {"slope", "intercept"}
     draw_legend = staticmethod(geom_path.draw_legend)
 
diff --git a/plotnine/geoms/geom_area.py b/plotnine/geoms/geom_area.py
index 880c26e62..05ca24bd0 100644
--- a/plotnine/geoms/geom_area.py
+++ b/plotnine/geoms/geom_area.py
@@ -30,11 +30,7 @@ class geom_area(geom_ribbon):
     """
 
     REQUIRED_AES = {"x", "y"}
-    DEFAULT_PARAMS = {
-        **geom_ribbon.DEFAULT_PARAMS,
-        "position": "stack",
-        "outline_type": "upper",
-    }
+    DEFAULT_PARAMS = {"position": "stack", "outline_type": "upper"}
 
     def setup_data(self, data: pd.DataFrame) -> pd.DataFrame:
         data["ymin"] = 0
diff --git a/plotnine/geoms/geom_bar.py b/plotnine/geoms/geom_bar.py
index bf6d02538..8eba32635 100644
--- a/plotnine/geoms/geom_bar.py
+++ b/plotnine/geoms/geom_bar.py
@@ -40,7 +40,6 @@ class geom_bar(geom_rect):
     DEFAULT_PARAMS = {
         "stat": "count",
         "position": "stack",
-        "na_rm": False,
         "just": 0.5,
         "width": None,
     }
diff --git a/plotnine/geoms/geom_bin_2d.py b/plotnine/geoms/geom_bin_2d.py
index 97a816496..019f80cc5 100644
--- a/plotnine/geoms/geom_bin_2d.py
+++ b/plotnine/geoms/geom_bin_2d.py
@@ -23,7 +23,7 @@ class geom_bin_2d(geom_rect):
     plotnine.stat_bin_2d : The default stat for this `geom`.
     """
 
-    DEFAULT_PARAMS = {"stat": "bin_2d", "position": "identity", "na_rm": False}
+    DEFAULT_PARAMS = {"stat": "bin_2d"}
 
 
 geom_bin2d = geom_bin_2d
diff --git a/plotnine/geoms/geom_blank.py b/plotnine/geoms/geom_blank.py
index 2fd00f532..0aae26c87 100644
--- a/plotnine/geoms/geom_blank.py
+++ b/plotnine/geoms/geom_blank.py
@@ -25,12 +25,6 @@ class geom_blank(geom):
     {common_parameters}
     """
 
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-    }
-
     def draw_panel(
         self,
         data: pd.DataFrame,
diff --git a/plotnine/geoms/geom_boxplot.py b/plotnine/geoms/geom_boxplot.py
index effbba664..d428f3afc 100644
--- a/plotnine/geoms/geom_boxplot.py
+++ b/plotnine/geoms/geom_boxplot.py
@@ -89,7 +89,6 @@ class geom_boxplot(geom):
     DEFAULT_PARAMS = {
         "stat": "boxplot",
         "position": "dodge2",
-        "na_rm": False,
         "width": None,
         "outlier_alpha": 1,
         "outlier_color": None,
diff --git a/plotnine/geoms/geom_col.py b/plotnine/geoms/geom_col.py
index 8235fe2e9..fc824f169 100644
--- a/plotnine/geoms/geom_col.py
+++ b/plotnine/geoms/geom_col.py
@@ -33,10 +33,4 @@ class geom_col(geom_bar):
 
     REQUIRED_AES = {"x", "y"}
     NON_MISSING_AES = {"xmin", "xmax", "ymin", "ymax"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "stack",
-        "na_rm": False,
-        "just": 0.5,
-        "width": None,
-    }
+    DEFAULT_PARAMS = {"position": "stack", "just": 0.5, "width": None}
diff --git a/plotnine/geoms/geom_count.py b/plotnine/geoms/geom_count.py
index 9dd629112..fc309aec8 100644
--- a/plotnine/geoms/geom_count.py
+++ b/plotnine/geoms/geom_count.py
@@ -22,4 +22,4 @@ class geom_count(geom_point):
     plotnine.stat_sum : The default `stat` for this `geom`.
     """
 
-    DEFAULT_PARAMS = {"stat": "sum", "position": "identity", "na_rm": False}
+    DEFAULT_PARAMS = {"stat": "sum"}
diff --git a/plotnine/geoms/geom_crossbar.py b/plotnine/geoms/geom_crossbar.py
index fbaad161a..736ceaec5 100644
--- a/plotnine/geoms/geom_crossbar.py
+++ b/plotnine/geoms/geom_crossbar.py
@@ -50,13 +50,7 @@ class geom_crossbar(geom):
         "size": 0.5,
     }
     REQUIRED_AES = {"x", "y", "ymin", "ymax"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "width": 0.5,
-        "fatten": 2,
-    }
+    DEFAULT_PARAMS = {"width": 0.5, "fatten": 2}
 
     legend_key_size = staticmethod(geom_segment.legend_key_size)
 
diff --git a/plotnine/geoms/geom_density.py b/plotnine/geoms/geom_density.py
index 0ae32f388..4965d2059 100644
--- a/plotnine/geoms/geom_density.py
+++ b/plotnine/geoms/geom_density.py
@@ -25,8 +25,4 @@ class geom_density(geom_area):
         "weight": 1,
     }
 
-    DEFAULT_PARAMS = {
-        **geom_area.DEFAULT_PARAMS,
-        "stat": "density",
-        "position": "identity",
-    }
+    DEFAULT_PARAMS = {"stat": "density", "outline_type": "upper"}
diff --git a/plotnine/geoms/geom_density_2d.py b/plotnine/geoms/geom_density_2d.py
index d96393a6f..1d756e3f5 100644
--- a/plotnine/geoms/geom_density_2d.py
+++ b/plotnine/geoms/geom_density_2d.py
@@ -20,8 +20,4 @@ class geom_density_2d(geom_path):
     plotnine.stat_density_2d : The default `stat` for this `geom`.
     """
 
-    DEFAULT_PARAMS = {
-        "stat": "density_2d",
-        "position": "identity",
-        "na_rm": False,
-    }
+    DEFAULT_PARAMS = {"stat": "density_2d"}
diff --git a/plotnine/geoms/geom_dotplot.py b/plotnine/geoms/geom_dotplot.py
index 2fb36ec6d..ee0031916 100644
--- a/plotnine/geoms/geom_dotplot.py
+++ b/plotnine/geoms/geom_dotplot.py
@@ -54,8 +54,6 @@ class geom_dotplot(geom):
     NON_MISSING_AES = {"size", "shape"}
     DEFAULT_PARAMS = {
         "stat": "bindot",
-        "position": "identity",
-        "na_rm": False,
         "stackdir": "up",
         "stackratio": 1,
         "dotsize": 1,
diff --git a/plotnine/geoms/geom_errorbar.py b/plotnine/geoms/geom_errorbar.py
index 9edced099..7b1f19e89 100644
--- a/plotnine/geoms/geom_errorbar.py
+++ b/plotnine/geoms/geom_errorbar.py
@@ -41,12 +41,8 @@ class geom_errorbar(geom):
         "size": 0.5,
     }
     REQUIRED_AES = {"x", "ymin", "ymax"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "width": 0.5,
-    }
+    DEFAULT_PARAMS = {"width": 0.5}
+
     draw_legend = staticmethod(geom_path.draw_legend)
 
     def setup_data(self, data: pd.DataFrame) -> pd.DataFrame:
diff --git a/plotnine/geoms/geom_errorbarh.py b/plotnine/geoms/geom_errorbarh.py
index 5c7fa7d5f..408ecbbcc 100644
--- a/plotnine/geoms/geom_errorbarh.py
+++ b/plotnine/geoms/geom_errorbarh.py
@@ -41,12 +41,8 @@ class geom_errorbarh(geom):
         "size": 0.5,
     }
     REQUIRED_AES = {"y", "xmin", "xmax"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "height": 0.5,
-    }
+    DEFAULT_PARAMS = {"height": 0.5}
+
     draw_legend = staticmethod(geom_path.draw_legend)
 
     def setup_data(self, data: pd.DataFrame) -> pd.DataFrame:
diff --git a/plotnine/geoms/geom_freqpoly.py b/plotnine/geoms/geom_freqpoly.py
index d1a9ee30c..6fea81dbd 100644
--- a/plotnine/geoms/geom_freqpoly.py
+++ b/plotnine/geoms/geom_freqpoly.py
@@ -1,9 +1,6 @@
 from ..doctools import document
 from .geom_path import geom_path
 
-_params = geom_path.DEFAULT_PARAMS.copy()
-_params["stat"] = "bin"
-
 
 @document
 class geom_freqpoly(geom_path):
@@ -16,4 +13,9 @@ class geom_freqpoly(geom_path):
     of the parameters.
     """
 
-    DEFAULT_PARAMS = _params
+    DEFAULT_PARAMS = {
+        "stat": "bin",
+        "lineend": "butt",
+        "linejoin": "round",
+        "arrow": None,
+    }
diff --git a/plotnine/geoms/geom_histogram.py b/plotnine/geoms/geom_histogram.py
index c96209f2b..f3d2ce07a 100644
--- a/plotnine/geoms/geom_histogram.py
+++ b/plotnine/geoms/geom_histogram.py
@@ -18,4 +18,4 @@ class geom_histogram(geom_bar):
     plotnine.geom_bar : The default `stat` for this `geom`.
     """
 
-    DEFAULT_PARAMS = {"stat": "bin", "position": "stack", "na_rm": False}
+    DEFAULT_PARAMS = {"stat": "bin", "position": "stack"}
diff --git a/plotnine/geoms/geom_hline.py b/plotnine/geoms/geom_hline.py
index 393f40a0e..8ee9302e3 100644
--- a/plotnine/geoms/geom_hline.py
+++ b/plotnine/geoms/geom_hline.py
@@ -43,12 +43,7 @@ class geom_hline(geom):
         "alpha": 1,
     }
     REQUIRED_AES = {"yintercept"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "inherit_aes": False,
-    }
+    DEFAULT_PARAMS = {"inherit_aes": False}
 
     draw_legend = staticmethod(geom_path.draw_legend)
     legend_key_size = staticmethod(geom_path.legend_key_size)
diff --git a/plotnine/geoms/geom_jitter.py b/plotnine/geoms/geom_jitter.py
index 6157bed36..d6ca6d90a 100644
--- a/plotnine/geoms/geom_jitter.py
+++ b/plotnine/geoms/geom_jitter.py
@@ -43,9 +43,7 @@ class geom_jitter(geom_point):
     """
 
     DEFAULT_PARAMS = {
-        "stat": "identity",
         "position": "jitter",
-        "na_rm": False,
         "width": None,
         "height": None,
         "random_state": None,
diff --git a/plotnine/geoms/geom_label.py b/plotnine/geoms/geom_label.py
index 9498d28a5..6de3f43d4 100644
--- a/plotnine/geoms/geom_label.py
+++ b/plotnine/geoms/geom_label.py
@@ -15,27 +15,6 @@
     from plotnine.layer import layer
 
 
-_aes = geom_text.DEFAULT_AES.copy()
-_aes["fill"] = "white"
-
-_params = geom_text.DEFAULT_PARAMS.copy()
-_params.update(
-    {
-        # boxstyle is one of
-        #   circle, larrow, rarrow, round, round4,
-        #   roundtooth, sawtooth, square
-        #
-        # Documentation at matplotlib.patches.BoxStyle
-        "boxstyle": "round",
-        "boxcolor": None,
-        "label_padding": 0.25,
-        "label_r": 0.25,
-        "label_size": 0.7,
-        "tooth_size": None,
-    }
-)
-
-
 @document
 class geom_label(geom_text):
     """
@@ -80,8 +59,21 @@ class geom_label(geom_text):
         parameters that affect the boxstyle.
     """
 
-    DEFAULT_AES = _aes
-    DEFAULT_PARAMS = _params
+    DEFAULT_AES = {**geom_text.DEFAULT_AES, "fill": "white"}
+    DEFAULT_PARAMS = {
+        **geom_text.DEFAULT_PARAMS,
+        # boxstyle is one of
+        #   circle, larrow, rarrow, round, round4,
+        #   roundtooth, sawtooth, square
+        #
+        # Documentation at matplotlib.patches.BoxStyle
+        "boxstyle": "round",
+        "boxcolor": None,
+        "label_padding": 0.25,
+        "label_r": 0.25,
+        "label_size": 0.7,
+        "tooth_size": None,
+    }
 
     @staticmethod
     def draw_legend(
diff --git a/plotnine/geoms/geom_linerange.py b/plotnine/geoms/geom_linerange.py
index 3a3c2bd28..aef96d8d0 100644
--- a/plotnine/geoms/geom_linerange.py
+++ b/plotnine/geoms/geom_linerange.py
@@ -36,11 +36,7 @@ class geom_linerange(geom):
         "size": 0.5,
     }
     REQUIRED_AES = {"x", "ymin", "ymax"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-    }
+
     draw_legend = staticmethod(geom_path.draw_legend)
 
     @staticmethod
diff --git a/plotnine/geoms/geom_map.py b/plotnine/geoms/geom_map.py
index bf2473092..f914287c4 100644
--- a/plotnine/geoms/geom_map.py
+++ b/plotnine/geoms/geom_map.py
@@ -57,11 +57,6 @@ class geom_map(geom):
         "size": 0.5,
         "stroke": 0.5,
     }
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-    }
     REQUIRED_AES = {"geometry"}
 
     def __init__(
diff --git a/plotnine/geoms/geom_path.py b/plotnine/geoms/geom_path.py
index d830953fc..7f0fa12b8 100644
--- a/plotnine/geoms/geom_path.py
+++ b/plotnine/geoms/geom_path.py
@@ -58,9 +58,6 @@ class geom_path(geom):
 
     REQUIRED_AES = {"x", "y"}
     DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
         "lineend": "butt",
         "linejoin": "round",
         "arrow": None,
diff --git a/plotnine/geoms/geom_point.py b/plotnine/geoms/geom_point.py
index 51f00c381..96559b385 100644
--- a/plotnine/geoms/geom_point.py
+++ b/plotnine/geoms/geom_point.py
@@ -43,11 +43,6 @@ class geom_point(geom):
     }
     REQUIRED_AES = {"x", "y"}
     NON_MISSING_AES = {"color", "shape", "size"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-    }
 
     def draw_panel(
         self,
diff --git a/plotnine/geoms/geom_pointdensity.py b/plotnine/geoms/geom_pointdensity.py
index 8edb58f77..8a008e1b7 100644
--- a/plotnine/geoms/geom_pointdensity.py
+++ b/plotnine/geoms/geom_pointdensity.py
@@ -18,8 +18,4 @@ class geom_pointdensity(geom_point):
     plotnine.stat_pointdensity : The default `stat` for this `geom`.
     """
 
-    DEFAULT_PARAMS = {
-        "stat": "pointdensity",
-        "position": "identity",
-        "na_rm": False,
-    }
+    DEFAULT_PARAMS = {"stat": "pointdensity"}
diff --git a/plotnine/geoms/geom_pointrange.py b/plotnine/geoms/geom_pointrange.py
index b5daa40ca..7f4ee87fb 100644
--- a/plotnine/geoms/geom_pointrange.py
+++ b/plotnine/geoms/geom_pointrange.py
@@ -45,12 +45,7 @@ class geom_pointrange(geom):
         "size": 0.5,
     }
     REQUIRED_AES = {"x", "y", "ymin", "ymax"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "fatten": 4,
-    }
+    DEFAULT_PARAMS = {"fatten": 4}
 
     @staticmethod
     def draw_group(
diff --git a/plotnine/geoms/geom_polygon.py b/plotnine/geoms/geom_polygon.py
index 7c43fe6bd..add11541e 100644
--- a/plotnine/geoms/geom_polygon.py
+++ b/plotnine/geoms/geom_polygon.py
@@ -44,11 +44,6 @@ class geom_polygon(geom):
         "linetype": "solid",
         "size": 0.5,
     }
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-    }
     REQUIRED_AES = {"x", "y"}
 
     legend_key_size = staticmethod(geom_path.legend_key_size)
diff --git a/plotnine/geoms/geom_qq.py b/plotnine/geoms/geom_qq.py
index 15f02fb89..efe1c4b21 100644
--- a/plotnine/geoms/geom_qq.py
+++ b/plotnine/geoms/geom_qq.py
@@ -18,4 +18,4 @@ class geom_qq(geom_point):
     plotnine.stat_qq : The default `stat` for this `geom`.
     """
 
-    DEFAULT_PARAMS = {"stat": "qq", "position": "identity", "na_rm": False}
+    DEFAULT_PARAMS = {"stat": "qq"}
diff --git a/plotnine/geoms/geom_qq_line.py b/plotnine/geoms/geom_qq_line.py
index 4464317bb..495418812 100644
--- a/plotnine/geoms/geom_qq_line.py
+++ b/plotnine/geoms/geom_qq_line.py
@@ -18,8 +18,4 @@ class geom_qq_line(geom_path):
     plotnine.stat_qq_line : The default `stat` for this `geom`.
     """
 
-    DEFAULT_PARAMS = {
-        "stat": "qq_line",
-        "position": "identity",
-        "na_rm": False,
-    }
+    DEFAULT_PARAMS = {"stat": "qq_line"}
diff --git a/plotnine/geoms/geom_quantile.py b/plotnine/geoms/geom_quantile.py
index ec33fe77c..9beef4525 100644
--- a/plotnine/geoms/geom_quantile.py
+++ b/plotnine/geoms/geom_quantile.py
@@ -30,8 +30,6 @@ class geom_quantile(geom_path):
     }
     DEFAULT_PARAMS = {
         "stat": "quantile",
-        "position": "identity",
-        "na_rm": False,
         "lineend": "butt",
         "linejoin": "round",
     }
diff --git a/plotnine/geoms/geom_raster.py b/plotnine/geoms/geom_raster.py
index 701653da1..68cc78084 100644
--- a/plotnine/geoms/geom_raster.py
+++ b/plotnine/geoms/geom_raster.py
@@ -82,9 +82,6 @@ class geom_raster(geom):
     REQUIRED_AES = {"x", "y"}
     NON_MISSING_AES = {"fill", "xmin", "xmax", "ymin", "ymax"}
     DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
         "vjust": 0.5,
         "hjust": 0.5,
         "interpolation": None,
diff --git a/plotnine/geoms/geom_rect.py b/plotnine/geoms/geom_rect.py
index f02a0febd..eecae786c 100644
--- a/plotnine/geoms/geom_rect.py
+++ b/plotnine/geoms/geom_rect.py
@@ -39,11 +39,7 @@ class geom_rect(geom):
         "alpha": 1,
     }
     REQUIRED_AES = {"xmax", "xmin", "ymax", "ymin"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-    }
+
     draw_legend = staticmethod(geom_polygon.draw_legend)
 
     def draw_panel(
diff --git a/plotnine/geoms/geom_ribbon.py b/plotnine/geoms/geom_ribbon.py
index c5680f9d1..b28527f31 100644
--- a/plotnine/geoms/geom_ribbon.py
+++ b/plotnine/geoms/geom_ribbon.py
@@ -68,12 +68,7 @@ class geom_ribbon(geom):
         "where": True,
     }
     REQUIRED_AES = {"x", "ymax", "ymin"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "outline_type": "both",
-        "na_rm": False,
-    }
+    DEFAULT_PARAMS = {"outline_type": "both"}
     draw_legend = staticmethod(geom_polygon.draw_legend)
 
     def handle_na(self, data: pd.DataFrame) -> pd.DataFrame:
diff --git a/plotnine/geoms/geom_rug.py b/plotnine/geoms/geom_rug.py
index a36e43b62..33711c995 100644
--- a/plotnine/geoms/geom_rug.py
+++ b/plotnine/geoms/geom_rug.py
@@ -45,13 +45,8 @@ class geom_rug(geom):
         "size": 0.5,
         "linetype": "solid",
     }
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "sides": "bl",
-        "length": 0.03,
-    }
+    DEFAULT_PARAMS = {"sides": "bl", "length": 0.03}
+
     draw_legend = staticmethod(geom_path.draw_legend)
 
     @staticmethod
diff --git a/plotnine/geoms/geom_segment.py b/plotnine/geoms/geom_segment.py
index b4c971735..b97d71583 100644
--- a/plotnine/geoms/geom_segment.py
+++ b/plotnine/geoms/geom_segment.py
@@ -47,13 +47,7 @@ class geom_segment(geom):
     }
     REQUIRED_AES = {"x", "y", "xend", "yend"}
     NON_MISSING_AES = {"linetype", "size", "shape"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "lineend": "butt",
-        "arrow": None,
-    }
+    DEFAULT_PARAMS = {"lineend": "butt", "arrow": None}
 
     draw_legend = staticmethod(geom_path.draw_legend)
     legend_key_size = staticmethod(geom_path.legend_key_size)
diff --git a/plotnine/geoms/geom_sina.py b/plotnine/geoms/geom_sina.py
index 8a74f298d..c00278d5b 100644
--- a/plotnine/geoms/geom_sina.py
+++ b/plotnine/geoms/geom_sina.py
@@ -31,4 +31,4 @@ class geom_sina(geom_point):
     J. Comp. Graph. Stat 27: 673–76.
     """
 
-    DEFAULT_PARAMS = {"stat": "sina", "position": "dodge", "na_rm": False}
+    DEFAULT_PARAMS = {"stat": "sina", "position": "dodge"}
diff --git a/plotnine/geoms/geom_smooth.py b/plotnine/geoms/geom_smooth.py
index 36f8d8a00..5d84cb8d6 100644
--- a/plotnine/geoms/geom_smooth.py
+++ b/plotnine/geoms/geom_smooth.py
@@ -50,12 +50,7 @@ class geom_smooth(geom):
         "ymax": None,
     }
     REQUIRED_AES = {"x", "y"}
-    DEFAULT_PARAMS = {
-        "stat": "smooth",
-        "position": "identity",
-        "na_rm": False,
-        "legend_fill_ratio": 0.5,
-    }
+    DEFAULT_PARAMS = {"stat": "smooth", "legend_fill_ratio": 0.5}
 
     legend_key_size = staticmethod(geom_path.legend_key_size)
 
diff --git a/plotnine/geoms/geom_spoke.py b/plotnine/geoms/geom_spoke.py
index 624c18b57..08e08e7bf 100644
--- a/plotnine/geoms/geom_spoke.py
+++ b/plotnine/geoms/geom_spoke.py
@@ -1,13 +1,13 @@
 from __future__ import annotations
 
-import typing
+from typing import TYPE_CHECKING
 
 import numpy as np
 
 from ..doctools import document
 from .geom_segment import geom_segment
 
-if typing.TYPE_CHECKING:
+if TYPE_CHECKING:
     import pandas as pd
 
 
diff --git a/plotnine/geoms/geom_step.py b/plotnine/geoms/geom_step.py
index 24b710338..258b564d0 100644
--- a/plotnine/geoms/geom_step.py
+++ b/plotnine/geoms/geom_step.py
@@ -40,12 +40,8 @@ class geom_step(geom_path):
     plotnine.geom_path : For documentation of extra parameters.
     """
 
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "direction": "hv",
-    }
+    DEFAULT_PARAMS = {"direction": "hv"}
+
     draw_panel = geom.draw_panel
 
     @staticmethod
diff --git a/plotnine/geoms/geom_text.py b/plotnine/geoms/geom_text.py
index 53df3f357..4f7f810b9 100644
--- a/plotnine/geoms/geom_text.py
+++ b/plotnine/geoms/geom_text.py
@@ -144,9 +144,6 @@ class geom_text(geom):
     }
     REQUIRED_AES = {"label", "x", "y"}
     DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
         "parse": False,
         "nudge_x": 0,
         "nudge_y": 0,
diff --git a/plotnine/geoms/geom_tile.py b/plotnine/geoms/geom_tile.py
index e8c08798e..503d6fc73 100644
--- a/plotnine/geoms/geom_tile.py
+++ b/plotnine/geoms/geom_tile.py
@@ -36,11 +36,6 @@ class geom_tile(geom_rect):
         "height": None,
     }
     REQUIRED_AES = {"x", "y"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-    }
 
     def setup_data(self, data: pd.DataFrame) -> pd.DataFrame:
         try:
diff --git a/plotnine/geoms/geom_violin.py b/plotnine/geoms/geom_violin.py
index 1ac7a15da..578ff654b 100644
--- a/plotnine/geoms/geom_violin.py
+++ b/plotnine/geoms/geom_violin.py
@@ -68,7 +68,6 @@ class geom_violin(geom):
         "scale": "area",
         "trim": True,
         "width": None,
-        "na_rm": False,
     }
     draw_legend = staticmethod(geom_polygon.draw_legend)
 
diff --git a/plotnine/geoms/geom_vline.py b/plotnine/geoms/geom_vline.py
index 6e8e32adb..f45e88d51 100644
--- a/plotnine/geoms/geom_vline.py
+++ b/plotnine/geoms/geom_vline.py
@@ -44,12 +44,7 @@ class geom_vline(geom):
         "alpha": 1,
     }
     REQUIRED_AES = {"xintercept"}
-    DEFAULT_PARAMS = {
-        "stat": "identity",
-        "position": "identity",
-        "na_rm": False,
-        "inherit_aes": False,
-    }
+    DEFAULT_PARAMS = {"inherit_aes": False}
 
     legend_key_size = staticmethod(geom_segment.legend_key_size)
 
diff --git a/plotnine/guides/guide_legend.py b/plotnine/guides/guide_legend.py
index 00effc985..1dfb51ade 100644
--- a/plotnine/guides/guide_legend.py
+++ b/plotnine/guides/guide_legend.py
@@ -196,7 +196,7 @@ def create_geoms(self):
 
             data = remove_missing(
                 data,
-                l.geom.params["na_rm"],
+                l.geom.params.get("na_rm", False),
                 list(l.geom.REQUIRED_AES | l.geom.NON_MISSING_AES),
                 f"{l.geom.__class__.__name__} legend",
             )
diff --git a/plotnine/layer.py b/plotnine/layer.py
index 190115b5a..b502de9c8 100644
--- a/plotnine/layer.py
+++ b/plotnine/layer.py
@@ -94,9 +94,9 @@ def __init__(
             if stat is not None:
                 stat_ref = _lookup_stat(stat)
                 if isinstance(stat_ref, type):
-                    geom = stat_ref.DEFAULT_PARAMS.get("geom", "blank")
+                    geom = stat_ref.DEFAULT_PARAMS["geom"]
                 else:
-                    geom = stat_ref.params.get("geom", "blank")
+                    geom = stat_ref.params["geom"]
                     # Forward stat instance's kwargs to the geom
                     if mapping is None and data is None and not kwargs:
                         mapping = stat_ref._raw_kwargs.get("mapping")
@@ -154,6 +154,9 @@ def _verify_arguments(geom: geom, stat: stat) -> None:
                 "data",
                 "mapping",
                 "geom",
+                "stat",
+                "position",
+                "na_rm",
                 "show_legend",
                 "inherit_aes",
                 "raster",
@@ -635,6 +638,11 @@ def _resolve_geom(
     from .geoms.geom import geom as geom_cls
 
     if isinstance(geom_spec, geom_cls):
+        for param in set(geom_spec.aesthetics()) & set(kwargs):
+            geom_spec.aes_params[param] = kwargs[param]
+
+        for param in set(geom_spec.DEFAULT_PARAMS) & set(kwargs):
+            geom_spec.params[param] = kwargs[param]
         return geom_spec
 
     if isinstance(geom_spec, type) and issubclass(geom_spec, geom_cls):
@@ -670,7 +678,7 @@ def _lookup_stat(
 
     # Duck-type guard for module reloads
     if not isinstance(stat_spec, type) and hasattr(stat_spec, "compute_layer"):
-        return stat_spec  # type: ignore[return-value]
+        return stat_spec  # pyright: ignore[reportReturnType]
 
     if isinstance(stat_spec, stat_cls):
         return stat_spec
@@ -707,9 +715,15 @@ def _resolve_stat(
     if stat_spec is None:
         stat_spec = geom_obj.params["stat"]
 
-    result = _lookup_stat(stat_spec)  # type: ignore[arg-type]
+    result = _lookup_stat(stat_spec)  # pyright: ignore[reportArgumentType]
 
     if isinstance(result, stat_cls):
+        kwargs = result._raw_kwargs
+        for param in set(result.aesthetics()) & set(kwargs):
+            result.aes_params[param] = kwargs[param]
+
+        for param in set(result.DEFAULT_PARAMS) & set(kwargs):
+            result.params[param] = kwargs[param]
         return result
 
     # It's a class — instantiate with filtered geom kwargs
@@ -740,7 +754,7 @@ def _resolve_position(
     from .positions.position import position as position_cls
 
     if position_spec is None:
-        position_spec = geom_obj.params["position"]
+        position_spec = geom_obj.params.get("position", "identity")
 
     if isinstance(position_spec, position_cls):
         return position_spec
diff --git a/plotnine/qplot.py b/plotnine/qplot.py
index 1878dfe03..9eaff7170 100644
--- a/plotnine/qplot.py
+++ b/plotnine/qplot.py
@@ -198,7 +198,8 @@ def get_facet_type(facets: str) -> Literal["grid", "wrap", "null"]:
     for g in geom:
         geom_name = f"geom_{g}"
         geom_klass = Registry[geom_name]
-        stat_name = f"stat_{geom_klass.DEFAULT_PARAMS['stat']}"
+        s = geom_klass.DEFAULT_PARAMS.get("stat", "identity")
+        stat_name = f"stat_{s}"
         stat_klass = Registry[stat_name]
         # find params
         recognized = kwargs.keys() & (
diff --git a/plotnine/stats/stat.py b/plotnine/stats/stat.py
index cc2537665..bbcacee75 100644
--- a/plotnine/stats/stat.py
+++ b/plotnine/stats/stat.py
@@ -27,6 +27,12 @@
 
 from abc import ABC
 
+_BASE_PARAMS = {
+    "geom": "blank",
+    "position": "identity",
+    "na_rm": False,
+}
+
 
 class stat(ABC, metaclass=Register):
     """Base class of all stats"""
@@ -40,7 +46,7 @@ class stat(ABC, metaclass=Register):
     NON_MISSING_AES: set[str] = set()
     """Required aesthetics for the stat"""
 
-    DEFAULT_PARAMS: dict[str, Any] = {"geom": "blank"}
+    DEFAULT_PARAMS: dict[str, Any] = {}
     """Required parameters for the stat"""
 
     CREATES: set[str] = set()
@@ -70,10 +76,12 @@ def __init__(
         data: DataLike | None = None,
         **kwargs: Any,
     ):
+        possible_params = _BASE_PARAMS | self.DEFAULT_PARAMS
+        possible_params_set = set(possible_params)
         kwargs = data_mapping_as_kwargs((data, mapping), kwargs)
         self._raw_kwargs = kwargs  # Will be used to create the geom
-        self.params = self.DEFAULT_PARAMS | {
-            k: v for k, v in kwargs.items() if k in self.DEFAULT_PARAMS
+        self.params = possible_params | {
+            k: v for k, v in kwargs.items() if k in possible_params_set
         }
         self.DEFAULT_AES = aes(**self.DEFAULT_AES)
         self.aes_params = {
diff --git a/plotnine/stats/stat_bin.py b/plotnine/stats/stat_bin.py
index ca4651461..9d8ee0ec2 100644
--- a/plotnine/stats/stat_bin.py
+++ b/plotnine/stats/stat_bin.py
@@ -77,7 +77,6 @@ class stat_bin(stat):
     DEFAULT_PARAMS = {
         "geom": "histogram",
         "position": "stack",
-        "na_rm": False,
         "binwidth": None,
         "bins": None,
         "breaks": None,
diff --git a/plotnine/stats/stat_bin_2d.py b/plotnine/stats/stat_bin_2d.py
index c5c6f7f60..63fee8c99 100644
--- a/plotnine/stats/stat_bin_2d.py
+++ b/plotnine/stats/stat_bin_2d.py
@@ -59,8 +59,6 @@ class stat_bin_2d(stat):
     REQUIRED_AES = {"x", "y"}
     DEFAULT_PARAMS = {
         "geom": "rect",
-        "position": "identity",
-        "na_rm": False,
         "bins": 30,
         "breaks": None,
         "binwidth": None,
diff --git a/plotnine/stats/stat_bindot.py b/plotnine/stats/stat_bindot.py
index c5fdc6102..9539e20af 100644
--- a/plotnine/stats/stat_bindot.py
+++ b/plotnine/stats/stat_bindot.py
@@ -90,8 +90,6 @@ class stat_bindot(stat):
     NON_MISSING_AES = {"weight"}
     DEFAULT_PARAMS = {
         "geom": "dotplot",
-        "position": "identity",
-        "na_rm": False,
         "bins": None,
         "binwidth": None,
         "origin": None,
diff --git a/plotnine/stats/stat_boxplot.py b/plotnine/stats/stat_boxplot.py
index 15201e8be..87baa79cb 100644
--- a/plotnine/stats/stat_boxplot.py
+++ b/plotnine/stats/stat_boxplot.py
@@ -64,7 +64,6 @@ class stat_boxplot(stat):
     DEFAULT_PARAMS = {
         "geom": "boxplot",
         "position": "dodge",
-        "na_rm": False,
         "coef": 1.5,
         "width": None,
     }
diff --git a/plotnine/stats/stat_count.py b/plotnine/stats/stat_count.py
index b99e7a566..bf2b3470e 100644
--- a/plotnine/stats/stat_count.py
+++ b/plotnine/stats/stat_count.py
@@ -43,7 +43,6 @@ class stat_count(stat):
     DEFAULT_PARAMS = {
         "geom": "histogram",
         "position": "stack",
-        "na_rm": False,
         "width": None,
     }
     DEFAULT_AES = {"y": after_stat("count")}
diff --git a/plotnine/stats/stat_density.py b/plotnine/stats/stat_density.py
index 4089bcf39..b3bce5efd 100644
--- a/plotnine/stats/stat_density.py
+++ b/plotnine/stats/stat_density.py
@@ -111,7 +111,6 @@ class stat_density(stat):
     DEFAULT_PARAMS = {
         "geom": "density",
         "position": "stack",
-        "na_rm": False,
         "kernel": "gaussian",
         "adjust": 1,
         "trim": False,
diff --git a/plotnine/stats/stat_density_2d.py b/plotnine/stats/stat_density_2d.py
index 0467969a1..8046240c7 100644
--- a/plotnine/stats/stat_density_2d.py
+++ b/plotnine/stats/stat_density_2d.py
@@ -63,8 +63,6 @@ class stat_density_2d(stat):
     REQUIRED_AES = {"x"}
     DEFAULT_PARAMS = {
         "geom": "density_2d",
-        "position": "identity",
-        "na_rm": False,
         "contour": True,
         "package": "statsmodels",
         "kde_params": None,
diff --git a/plotnine/stats/stat_ecdf.py b/plotnine/stats/stat_ecdf.py
index c17413432..013b382e4 100644
--- a/plotnine/stats/stat_ecdf.py
+++ b/plotnine/stats/stat_ecdf.py
@@ -40,13 +40,7 @@ class stat_ecdf(stat):
     """
 
     REQUIRED_AES = {"x"}
-    DEFAULT_PARAMS = {
-        "geom": "step",
-        "position": "identity",
-        "na_rm": False,
-        "n": None,
-        "pad": True,
-    }
+    DEFAULT_PARAMS = {"geom": "step", "n": None, "pad": True}
     DEFAULT_AES = {"y": after_stat("ecdf")}
     CREATES = {"ecdf"}
 
diff --git a/plotnine/stats/stat_ellipse.py b/plotnine/stats/stat_ellipse.py
index bc335577f..9c182d5b3 100644
--- a/plotnine/stats/stat_ellipse.py
+++ b/plotnine/stats/stat_ellipse.py
@@ -46,8 +46,6 @@ class stat_ellipse(stat):
     REQUIRED_AES = {"x", "y"}
     DEFAULT_PARAMS = {
         "geom": "path",
-        "position": "identity",
-        "na_rm": False,
         "type": "t",
         "level": 0.95,
         "segments": 51,
diff --git a/plotnine/stats/stat_function.py b/plotnine/stats/stat_function.py
index 03a07766f..3f0b02332 100644
--- a/plotnine/stats/stat_function.py
+++ b/plotnine/stats/stat_function.py
@@ -57,8 +57,6 @@ class stat_function(stat):
 
     DEFAULT_PARAMS = {
         "geom": "path",
-        "position": "identity",
-        "na_rm": False,
         "fun": None,
         "n": 101,
         "args": None,
diff --git a/plotnine/stats/stat_hull.py b/plotnine/stats/stat_hull.py
index 3f238edcc..668f64add 100644
--- a/plotnine/stats/stat_hull.py
+++ b/plotnine/stats/stat_hull.py
@@ -43,12 +43,7 @@ class stat_hull(stat):
 
     """
     REQUIRED_AES = {"x", "y"}
-    DEFAULT_PARAMS = {
-        "geom": "path",
-        "position": "identity",
-        "na_rm": False,
-        "qhull_options": None,
-    }
+    DEFAULT_PARAMS = {"geom": "path", "qhull_options": None}
     CREATES = {"area"}
 
     def compute_group(self, data, scales):
diff --git a/plotnine/stats/stat_identity.py b/plotnine/stats/stat_identity.py
index 539954666..4d3201a8f 100644
--- a/plotnine/stats/stat_identity.py
+++ b/plotnine/stats/stat_identity.py
@@ -18,7 +18,7 @@ class stat_identity(stat):
     plotnine.geom_point : The default `geom` for this `stat`.
     """
 
-    DEFAULT_PARAMS = {"geom": "point", "position": "identity", "na_rm": False}
+    DEFAULT_PARAMS = {"geom": "point"}
 
     def compute_panel(self, data, scales):
         return data
diff --git a/plotnine/stats/stat_pointdensity.py b/plotnine/stats/stat_pointdensity.py
index 92b03969c..d3a517430 100644
--- a/plotnine/stats/stat_pointdensity.py
+++ b/plotnine/stats/stat_pointdensity.py
@@ -49,8 +49,6 @@ class stat_pointdensity(stat):
     DEFAULT_AES = {"color": after_stat("density")}
     DEFAULT_PARAMS = {
         "geom": "density_2d",
-        "position": "identity",
-        "na_rm": False,
         "package": "statsmodels",
         "kde_params": None,
     }
diff --git a/plotnine/stats/stat_qq.py b/plotnine/stats/stat_qq.py
index caa47de46..4bfde5f81 100644
--- a/plotnine/stats/stat_qq.py
+++ b/plotnine/stats/stat_qq.py
@@ -67,8 +67,6 @@ class stat_qq(stat):
     DEFAULT_AES = {"x": after_stat("theoretical"), "y": after_stat("sample")}
     DEFAULT_PARAMS = {
         "geom": "qq",
-        "position": "identity",
-        "na_rm": False,
         "distribution": "norm",
         "dparams": {},
         "quantiles": None,
diff --git a/plotnine/stats/stat_qq_line.py b/plotnine/stats/stat_qq_line.py
index 86010f351..a9ad2a1f6 100644
--- a/plotnine/stats/stat_qq_line.py
+++ b/plotnine/stats/stat_qq_line.py
@@ -54,8 +54,6 @@ class stat_qq_line(stat):
     REQUIRED_AES = {"sample"}
     DEFAULT_PARAMS = {
         "geom": "qq_line",
-        "position": "identity",
-        "na_rm": False,
         "distribution": "norm",
         "dparams": {},
         "quantiles": None,
diff --git a/plotnine/stats/stat_quantile.py b/plotnine/stats/stat_quantile.py
index c2d5c7e27..3ce65347d 100644
--- a/plotnine/stats/stat_quantile.py
+++ b/plotnine/stats/stat_quantile.py
@@ -50,8 +50,6 @@ class stat_quantile(stat):
     REQUIRED_AES = {"x", "y"}
     DEFAULT_PARAMS = {
         "geom": "quantile",
-        "position": "identity",
-        "na_rm": False,
         "quantiles": (0.25, 0.5, 0.75),
         "formula": "y ~ x",
         "method_args": {},
diff --git a/plotnine/stats/stat_sina.py b/plotnine/stats/stat_sina.py
index 6189df5f9..07f8ff8a0 100644
--- a/plotnine/stats/stat_sina.py
+++ b/plotnine/stats/stat_sina.py
@@ -95,7 +95,6 @@ class stat_sina(stat):
     DEFAULT_PARAMS = {
         "geom": "sina",
         "position": "dodge",
-        "na_rm": False,
         "binwidth": None,
         "bins": None,
         "method": "density",
diff --git a/plotnine/stats/stat_smooth.py b/plotnine/stats/stat_smooth.py
index df8be2bf1..c180db949 100644
--- a/plotnine/stats/stat_smooth.py
+++ b/plotnine/stats/stat_smooth.py
@@ -143,8 +143,6 @@ def my_smoother(data, xseq, params):
     REQUIRED_AES = {"x", "y"}
     DEFAULT_PARAMS = {
         "geom": "smooth",
-        "position": "identity",
-        "na_rm": False,
         "method": "auto",
         "se": True,
         "n": 80,
diff --git a/plotnine/stats/stat_sum.py b/plotnine/stats/stat_sum.py
index 1fe5d22fc..36d758bba 100644
--- a/plotnine/stats/stat_sum.py
+++ b/plotnine/stats/stat_sum.py
@@ -35,7 +35,7 @@ class stat_sum(stat):
     """
 
     REQUIRED_AES = {"x", "y"}
-    DEFAULT_PARAMS = {"geom": "point", "position": "identity", "na_rm": False}
+    DEFAULT_PARAMS = {"geom": "point"}
     DEFAULT_AES = {"size": after_stat("n"), "weight": 1}
     CREATES = {"n", "prop"}
 
diff --git a/plotnine/stats/stat_summary.py b/plotnine/stats/stat_summary.py
index b4ec87202..1a6b95db8 100644
--- a/plotnine/stats/stat_summary.py
+++ b/plotnine/stats/stat_summary.py
@@ -270,8 +270,6 @@ class stat_summary(stat):
     REQUIRED_AES = {"x", "y"}
     DEFAULT_PARAMS = {
         "geom": "pointrange",
-        "position": "identity",
-        "na_rm": False,
         "fun_data": "mean_cl_boot",
         "fun_y": None,
         "fun_ymin": None,
diff --git a/plotnine/stats/stat_summary_bin.py b/plotnine/stats/stat_summary_bin.py
index 92b79c784..476cb4f2a 100644
--- a/plotnine/stats/stat_summary_bin.py
+++ b/plotnine/stats/stat_summary_bin.py
@@ -90,8 +90,6 @@ class stat_summary_bin(stat):
     REQUIRED_AES = {"x", "y"}
     DEFAULT_PARAMS = {
         "geom": "pointrange",
-        "position": "identity",
-        "na_rm": False,
         "bins": 30,
         "breaks": None,
         "binwidth": None,
diff --git a/plotnine/stats/stat_unique.py b/plotnine/stats/stat_unique.py
index 33f63ac4c..d53a2b4cd 100644
--- a/plotnine/stats/stat_unique.py
+++ b/plotnine/stats/stat_unique.py
@@ -18,7 +18,7 @@ class stat_unique(stat):
     plotnine.geom_point : The default `geom` for this `stat`.
     """
 
-    DEFAULT_PARAMS = {"geom": "point", "position": "identity", "na_rm": False}
+    DEFAULT_PARAMS = {"geom": "point"}
 
     def compute_panel(self, data, scales):
         return data.drop_duplicates()
diff --git a/plotnine/stats/stat_ydensity.py b/plotnine/stats/stat_ydensity.py
index e8d1378f6..8b4efdf3d 100644
--- a/plotnine/stats/stat_ydensity.py
+++ b/plotnine/stats/stat_ydensity.py
@@ -92,7 +92,6 @@ class stat_ydensity(stat):
     DEFAULT_PARAMS = {
         "geom": "violin",
         "position": "dodge",
-        "na_rm": False,
         "adjust": 1,
         "kernel": "gaussian",
         "n": 1024,