John W. Park, MD
NPI 1053375444ActiveIndividual· Internal Medicine, Medical Oncology· San Francisco, CA
Internal Medicine, Medical Oncology (MD) in San Francisco, California, trained at Stanford University School of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $143,699 for 494 claims, against $60,713 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2025, $124,017 in all, mostly speaking and faculty fees.
Overview
| NPI | 1053375444 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 13, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | G63196 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 172 |
|---|---|
| Services billed | 885 across 6 procedure codes |
| Paid by Medicare | $60,713 |
Part D prescriptions in 2024
| Prescriptions (claims) | 494 · 1,192 30-day fills |
|---|---|
| Patients | 126 |
| Total drug cost | $143,699 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
Hospital affiliation
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$124,017 · 124 payments from 3 companies
- 2024$67,492 · 66 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $69,429 | 70 |
| Daiichi Sankyo Inc. | $35,388 | 32 |
| Gilead Sciences, Inc. | $19,199 | 22 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$108,470 · 20 payments
- Travel and Lodging$11,298 · 67 payments
- Food and Beverage$2,609 · 35 payments
- Consulting Fee$1,640 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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