John S. Link, MD
NPI 1245281211ActiveIndividual· Internal Medicine, Hematology & Oncology· Orange, CA
Internal Medicine, Hematology & Oncology (MD) in Orange, California, trained at University of Southern California Keck School of Medicine (class of 1972). In 2024 Medicare paid $249,937 for 472 patients, and Part D covered 517 of their prescriptions, 81% of them generic. Boston Scientific Corporation was the largest of 2 companies reporting payments in 2025, $68.92 in all, mostly food and beverage.
Overview
| NPI | 1245281211 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 15, 2006 |
| Last updated in NPPES | May 26, 2021 |
| Certified by provider | May 26, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | G25774 | CA |
| Specialist | 174400000X | G25774 | CA |
| Internal Medicine, Medical Oncology | 207RX0202X | G25774 | 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 | 472 |
|---|---|
| Services billed | 9,894 across 21 procedure codes |
| Paid by Medicare | $249,937 |
Part D prescriptions in 2024
| Prescriptions (claims) | 517 · 856 30-day fills |
|---|---|
| Patients | 159 |
| Total drug cost | $217,990 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1972 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Memorialcare Medical FoundationLong Beach, CA · 566 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Memorialcare Long Beach Medical CenterLong Beach, CA
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
Industry payments (Open Payments)
- 2025$68.92 · 3 payments from 2 companies
- 2024$16.07 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $42.05 | 2 |
| Gilead Sciences, Inc. | $26.87 | 1 |
What the 2025 payments were for
- Food and Beverage$68.92 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 67 hematologist-oncologists in Orange · All hematologist-oncologists in California