diff --git a/ersilia/core/tracking.py b/ersilia/core/tracking.py
index 9f77f2192..64f8c8063 100644
--- a/ersilia/core/tracking.py
+++ b/ersilia/core/tracking.py
@@ -77,6 +77,12 @@ def track(self, input, result, meta):
         time = datetime.now() - self.time_start
         print("Time taken:", time)
 
+        # checking for mismatched types
+        nan_count = result_dataframe.isna().sum()
+        print("\nNAN Count:\n", nan_count)
+
+        self.check_types(result_dataframe, meta["metadata"])
+
         self.stats(result)
 
         self.get_file_sizes(input_dataframe, result_dataframe)
@@ -88,3 +94,23 @@ def read_json(self, result):
         data = json.load(result)
         self.log_to_console(result)
         return data
+
+    def check_types(self, resultDf, metadata):
+        typeDict = {"float64": "Float", "int64": "Int"}
+        count = 0
+
+        # ignore key and input columns
+        dtypesLst = resultDf.loc[:, ~resultDf.columns.isin(["key", "input"])].dtypes
+
+        for i in dtypesLst:
+            if typeDict[str(i)] != metadata["Output Type"][0]:
+                count += 1
+
+        if len(dtypesLst) > 1 and metadata["Output Shape"] != "List":
+            print("Not right shape. Expected List but got Single")
+        elif len(dtypesLst) == 1 and metadata["Output Shape"] != "Single":
+            print("Not right shape. Expected Single but got List")
+        else:
+            print("Output is correct shape.")
+
+        print("Output has", count, "mismatched types.\n")