diff --git a/docs/release_notes/release_notes-0.16.0.rst b/docs/release_notes/release_notes-0.16.0.rst
index 72e3f9308a6..2545900e4ed 100644
--- a/docs/release_notes/release_notes-0.16.0.rst
+++ b/docs/release_notes/release_notes-0.16.0.rst
@@ -46,6 +46,7 @@ Key Features and Updates
   * REFACTOR-#4708: Delete combine dtypes (#4709)
   * REFACTOR-#4629: Add type annotations to modin/config (#4685)
   * REFACTOR-#4717: Improve PartitionMgr.get_indices() usage (#4718)
+  * REFACTOR-#4774: remove `_build_treereduce_func` call from `_compute_dtypes` (#4775)
   * REFACTOR-#4750: Delete BaseDataframeAxisPartition.shuffle (#4751)
 * Pandas API implementations and improvements
   * FEAT-#4670: Implement convert_dtypes by mapping across partitions (#4671)
diff --git a/modin/core/dataframe/pandas/dataframe/dataframe.py b/modin/core/dataframe/pandas/dataframe/dataframe.py
index f6880af0988..c1d7c911da8 100644
--- a/modin/core/dataframe/pandas/dataframe/dataframe.py
+++ b/modin/core/dataframe/pandas/dataframe/dataframe.py
@@ -309,11 +309,13 @@ def _compute_dtypes(self):
         def dtype_builder(df):
             return df.apply(lambda col: find_common_type(col.values), axis=0)
 
-        map_func = self._build_treereduce_func(0, lambda df: df.dtypes)
-        reduce_func = self._build_treereduce_func(0, dtype_builder)
         # For now we will use a pandas Series for the dtypes.
         if len(self.columns) > 0:
-            dtypes = self.tree_reduce(0, map_func, reduce_func).to_pandas().iloc[0]
+            dtypes = (
+                self.tree_reduce(0, lambda df: df.dtypes, dtype_builder)
+                .to_pandas()
+                .iloc[0]
+            )
         else:
             dtypes = pandas.Series([])
         # reset name to None because we use "__reduced__" internally