diff --git a/reference/clinic.v1.yaml b/reference/clinic.v1.yaml
index 3ad43816..baa232f2 100644
--- a/reference/clinic.v1.yaml
+++ b/reference/clinic.v1.yaml
@@ -149,7 +149,17 @@ paths:
         - TIDEPOOL_ADMIN
         - CLINIC_ADMIN
         - CLINIC_CLINICIAN
-      parameters: []
+      parameters:
+        - name: includeCounts
+          in: query
+          description: |
+            Include counts of patients in tags and sites.
+
+            This will add the optional "patients" field to the
+            clinic's sites and patient_tags fields which will indicate
+            the number of patients associated with each.
+          schema:
+            type: boolean
     put:
       summary: Update Clinic
       operationId: UpdateClinic
diff --git a/reference/clinic/models/patientTag.v1.yaml b/reference/clinic/models/patientTag.v1.yaml
index 62efa385..a803f8db 100644
--- a/reference/clinic/models/patientTag.v1.yaml
+++ b/reference/clinic/models/patientTag.v1.yaml
@@ -10,6 +10,10 @@ properties:
     minLength: 1
     maxLength: 20
     pattern: '^[\p{L}\p{N}_+><-]{1}[\p{L}\p{N}\s_+><-]*$'
+  patients:
+    type: integer
+    description: The number of patients tagged.
+    x-go-type-skip-optional-pointer: true
 required:
   - id
   - name
diff --git a/reference/clinic/models/site.v1.yaml b/reference/clinic/models/site.v1.yaml
index bc5f0227..7575a625 100644
--- a/reference/clinic/models/site.v1.yaml
+++ b/reference/clinic/models/site.v1.yaml
@@ -6,6 +6,10 @@ properties:
     $ref: ./siteId.v1.yaml
   name:
     $ref: ./siteName.v1.yaml
+  patients:
+    type: integer
+    description: The number of patients associated with the site.
+    x-go-type-skip-optional-pointer: true
 required:
   - id
   - name