diff --git a/benefits/core/migrations/0003_remove_paymentprocessor_api_access_token_endpoint_and_more.py b/benefits/core/migrations/0003_remove_paymentprocessor_api_access_token_endpoint_and_more.py
new file mode 100644
index 0000000000..45ef8893c0
--- /dev/null
+++ b/benefits/core/migrations/0003_remove_paymentprocessor_api_access_token_endpoint_and_more.py
@@ -0,0 +1,49 @@
+# Generated by Django 5.0.2 on 2024-02-28 23:18
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("core", "0002_paymentprocessor_audience_paymentprocessor_client_id_and_more"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="paymentprocessor",
+            name="api_access_token_endpoint",
+        ),
+        migrations.RemoveField(
+            model_name="paymentprocessor",
+            name="api_access_token_request_key",
+        ),
+        migrations.RemoveField(
+            model_name="paymentprocessor",
+            name="api_access_token_request_val",
+        ),
+        migrations.RemoveField(
+            model_name="paymentprocessor",
+            name="client_cert",
+        ),
+        migrations.RemoveField(
+            model_name="paymentprocessor",
+            name="client_cert_private_key",
+        ),
+        migrations.RemoveField(
+            model_name="paymentprocessor",
+            name="client_cert_root_ca",
+        ),
+        migrations.RemoveField(
+            model_name="paymentprocessor",
+            name="customer_endpoint",
+        ),
+        migrations.RemoveField(
+            model_name="paymentprocessor",
+            name="customers_endpoint",
+        ),
+        migrations.RemoveField(
+            model_name="paymentprocessor",
+            name="group_endpoint",
+        ),
+    ]
diff --git a/benefits/core/migrations/local_fixtures.json b/benefits/core/migrations/local_fixtures.json
index 0aaf9a8081..3acf9ec1bb 100644
--- a/benefits/core/migrations/local_fixtures.json
+++ b/benefits/core/migrations/local_fixtures.json
@@ -324,18 +324,12 @@
     "fields": {
       "name": "(MST) test payment processor",
       "api_base_url": "http://server:8000",
-      "api_access_token_endpoint": "access-token",
-      "api_access_token_request_key": "request_access",
-      "api_access_token_request_val": "REQUEST_ACCESS",
+      "client_id": "",
+      "client_secret": "",
+      "audience": "",
       "card_tokenize_url": "http://server:8000/static/tokenize.js",
       "card_tokenize_func": "tokenize",
-      "card_tokenize_env": "test",
-      "client_cert": 5,
-      "client_cert_private_key": 6,
-      "client_cert_root_ca": 7,
-      "customer_endpoint": "customer",
-      "customers_endpoint": "customers",
-      "group_endpoint": "group"
+      "card_tokenize_env": "test"
     }
   },
   {
@@ -344,18 +338,12 @@
     "fields": {
       "name": "(SacRT) test payment processor",
       "api_base_url": "http://server:8000",
-      "api_access_token_endpoint": "access-token",
-      "api_access_token_request_key": "request_access",
-      "api_access_token_request_val": "REQUEST_ACCESS",
+      "client_id": "",
+      "client_secret": "",
+      "audience": "",
       "card_tokenize_url": "http://server:8000/static/tokenize.js",
       "card_tokenize_func": "tokenize",
-      "card_tokenize_env": "test",
-      "client_cert": 8,
-      "client_cert_private_key": 9,
-      "client_cert_root_ca": 10,
-      "customer_endpoint": "customer",
-      "customers_endpoint": "customers",
-      "group_endpoint": "group"
+      "card_tokenize_env": "test"
     }
   },
   {
@@ -364,18 +352,12 @@
     "fields": {
       "name": "(SBMTD) test payment processor",
       "api_base_url": "http://server:8000",
-      "api_access_token_endpoint": "access-token",
-      "api_access_token_request_key": "request_access",
-      "api_access_token_request_val": "REQUEST_ACCESS",
+      "client_id": "",
+      "client_secret": "",
+      "audience": "",
       "card_tokenize_url": "http://server:8000/static/tokenize.js",
       "card_tokenize_func": "tokenize",
-      "card_tokenize_env": "test",
-      "client_cert": 11,
-      "client_cert_private_key": 12,
-      "client_cert_root_ca": 13,
-      "customer_endpoint": "customer",
-      "customers_endpoint": "customers",
-      "group_endpoint": "group"
+      "card_tokenize_env": "test"
     }
   },
   {
diff --git a/benefits/core/models.py b/benefits/core/models.py
index 5f7898807b..4db5236939 100644
--- a/benefits/core/models.py
+++ b/benefits/core/models.py
@@ -206,24 +206,12 @@ class PaymentProcessor(models.Model):
     id = models.AutoField(primary_key=True)
     name = models.TextField()
     api_base_url = models.TextField()
-    api_access_token_endpoint = models.TextField()
-    api_access_token_request_key = models.TextField()
-    api_access_token_request_val = models.TextField()
     client_id = models.TextField()
     client_secret = SecretNameField()
     audience = models.TextField()
     card_tokenize_url = models.TextField()
     card_tokenize_func = models.TextField()
     card_tokenize_env = models.TextField()
-    # The certificate used for client certificate authentication to the API
-    client_cert = models.ForeignKey(PemData, related_name="+", on_delete=models.PROTECT)
-    # The private key, used to sign the certificate
-    client_cert_private_key = models.ForeignKey(PemData, related_name="+", on_delete=models.PROTECT)
-    # The root CA bundle, used to verify the server.
-    client_cert_root_ca = models.ForeignKey(PemData, related_name="+", on_delete=models.PROTECT)
-    customer_endpoint = models.TextField()
-    customers_endpoint = models.TextField()
-    group_endpoint = models.TextField()
 
     def __str__(self):
         return self.name
diff --git a/tests/pytest/conftest.py b/tests/pytest/conftest.py
index c51b50aa61..783f042d9c 100644
--- a/tests/pytest/conftest.py
+++ b/tests/pytest/conftest.py
@@ -130,25 +130,16 @@ def model_EligibilityVerifier_AuthProvider_with_verification(model_AuthProvider_
 
 
 @pytest.fixture
-def model_PaymentProcessor(model_PemData):
+def model_PaymentProcessor():
     payment_processor = PaymentProcessor.objects.create(
         name="Test Payment Processor",
         api_base_url="https://example.com/payments",
-        api_access_token_endpoint="token",
-        api_access_token_request_key="X-API-TOKEN",
-        api_access_token_request_val="secret-value",
         client_id="client_id",
         client_secret="client_secret",  # will need to be refactored to be a SecretNameField
         audience="audience",
         card_tokenize_url="https://example.com/payments/tokenize.js",
         card_tokenize_func="tokenize",
         card_tokenize_env="test",
-        client_cert=model_PemData,
-        client_cert_private_key=model_PemData,
-        client_cert_root_ca=model_PemData,
-        customer_endpoint="customer",
-        customers_endpoint="customers",
-        group_endpoint="group",
     )
 
     return payment_processor