diff --git a/blockchain_integration/pi_network/pihealth/test/backend/api/controllers/MedicalBillingController.test.js b/blockchain_integration/pi_network/pihealth/test/backend/api/controllers/MedicalBillingController.test.js
new file mode 100644
index 000000000..3445de8cb
--- /dev/null
+++ b/blockchain_integration/pi_network/pihealth/test/backend/api/controllers/MedicalBillingController.test.js
@@ -0,0 +1,49 @@
+import { MedicalBillingController } from './MedicalBillingController';
+import { mockMedicalBills } from '../mocks/medicalBills';
+
+describe('MedicalBillingController', () => {
+  let controller;
+  let req;
+  let res;
+
+  beforeEach(() => {
+    controller = new MedicalBillingController();
+    req = { params: {}, query: {} };
+    res = { json: jest.fn(), status: jest.fn(() => res) };
+  });
+
+  it('should get all medical bills', async () => {
+    const medicalBills = await controller.getAllMedicalBills(req, res);
+    expect(res.json).toHaveBeenCalledTimes(1);
+    expect(res.json).toHaveBeenCalledWith(mockMedicalBills);
+  });
+
+  it('should get a medical bill by ID', async () => {
+    req.params.id = '1';
+    const medicalBill = await controller.getMedicalBillById(req, res);
+    expect(res.json).toHaveBeenCalledTimes(1);
+    expect(res.json).toHaveBeenCalledWith(mockMedicalBills[0]);
+  });
+
+  it('should create a new medical bill', async () => {
+    req.body = { patientName: 'John Doe', billAmount: 100.00 };
+    await controller.createMedicalBill(req, res);
+    expect(res.status).toHaveBeenCalledTimes(1);
+    expect(res.status).toHaveBeenCalledWith(201);
+  });
+
+  it('should update a medical bill', async () => {
+    req.params.id = '1';
+    req.body = { patientName: 'Jane Doe', billAmount: 200.00 };
+    await controller.updateMedicalBill(req, res);
+    expect(res.status).toHaveBeenCalledTimes(1);
+    expect(res.status).toHaveBeenCalledWith(200);
+  });
+
+  it('should delete a medical bill', async () => {
+    req.params.id = '1';
+    await controller.deleteMedicalBill(req, res);
+    expect(res.status).toHaveBeenCalledTimes(1);
+    expect(res.status).toHaveBeenCalledWith(204);
+  });
+});