John P. Duffy, MD
NPI 1548368111ActiveIndividual· Transplant Surgery· Oklahoma City, OK
Transplant Surgery (MD) in Oklahoma City, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1999). In 2024 Medicare paid $76,764 for 72 patients, and Part D covered 416 of their prescriptions, 78% of them generic. Madrigal Pharmaceuticals was the largest of 5 companies reporting payments in 2025, $223.32 in all, mostly food and beverage.
Overview
| NPI | 1548368111 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | Apr 5, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Transplant Surgery Primary | 204F00000X | 27602 | OK |
| Surgery | 208600000X | 27602 | OK |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 72 |
|---|---|
| Services billed | 181 across 43 procedure codes |
| Paid by Medicare | $76,764 |
Part D prescriptions in 2024
| Prescriptions (claims) | 416 · 558 30-day fills |
|---|---|
| Patients | 67 |
| Total drug cost | $102,836 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | General Surgery |
Medical group
- Zuhdi Transplant PhysiciansOklahoma City, OK · 49 clinicians
Hospital affiliations
- Integris Baptist Medical Center, IncOklahoma City, OK
- Integris Canadian Valley HospitalYukon, OK
- Integris Health Enid HospitalEnid, OK
Industry payments (Open Payments)
- 2025$223.32 · 11 payments from 5 companies
- 2024$224.37 · 11 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $111.27 | 5 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $51.68 | 3 |
| Ethicon US, LLC | $28.98 | 1 |
| Gilead Sciences, Inc. | $15.79 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $15.60 | 1 |
What the 2025 payments were for
- Food and Beverage$223.32 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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