diff --git a/src/registrar/admin.py b/src/registrar/admin.py
index a47617c28..c8be04715 100644
--- a/src/registrar/admin.py
+++ b/src/registrar/admin.py
@@ -3085,11 +3085,7 @@ class PortfolioAdmin(ListHeaderAdmin):
             + "<th>Phone</th><th>Roles</th></tr></thead><tbody>"
         )
         for member in members:
-            full_name = (
-                f"{member.first_name} {member.middle_name} {member.last_name}"
-                if member.middle_name
-                else f"{member.first_name} {member.last_name}"
-            )
+            full_name = member.get_formatted_name()
             member_details += "<tr>"
             member_details += f"<td>{full_name}</td>"
             member_details += f"<td>{member.title}</td>"
diff --git a/src/registrar/tests/test_models.py b/src/registrar/tests/test_models.py
index 3510ff65e..7983fed36 100644
--- a/src/registrar/tests/test_models.py
+++ b/src/registrar/tests/test_models.py
@@ -1357,13 +1357,17 @@ class TestUser(TestCase):
         # Test if the user has 'Member', 'Domain requestor', and 'Domain manager' roles
         self.assertEqual(self.user.portfolio_role_summary(self.portfolio), ["Domain requestor", "Domain manager"])
 
-    @patch.multiple(User, has_base_portfolio_permission=lambda self, portfolio: True, has_edit_requests=lambda self, portfolio: True)
+    @patch.multiple(
+        User, has_base_portfolio_permission=lambda self, portfolio: True, has_edit_requests=lambda self, portfolio: True
+    )
     def test_portfolio_role_summary_member_domain_requestor(self):
         # Test if the user has 'Member' and 'Domain requestor' roles
         self.assertEqual(self.user.portfolio_role_summary(self.portfolio), ["Domain requestor"])
 
     @patch.multiple(
-        User, has_base_portfolio_permission=lambda self, portfolio: True, has_domains_portfolio_permission=lambda self, portfolio: True
+        User,
+        has_base_portfolio_permission=lambda self, portfolio: True,
+        has_domains_portfolio_permission=lambda self, portfolio: True,
     )
     def test_portfolio_role_summary_member_domain_manager(self):
         # Test if the user has 'Member' and 'Domain manager' roles