John R. Nelson, MD
NPI 1003908591ActiveIndividual· Internal Medicine· Fresno, CA
Internal Medicine (MD) in Fresno, California, trained at University of Louisville School of Medicine (class of 1982). Medicare paid $228,959 for services to 426 patients in 2024, and Part D covered 5,795 of their prescriptions (73% generic). Amgen Inc. was the largest of 10 companies reporting payments in 2025, $19,526 in all, mostly compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program.
Overview
| NPI | 1003908591 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 29, 2006 |
| Last updated in NPPES | Nov 16, 2023 |
| Certified by provider | Nov 16, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 00G504510 | CA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 00G504510 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 426 |
|---|---|
| Services billed | 3,473 across 17 procedure codes |
| Paid by Medicare | $228,959 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,795 · 15,630 30-day fills |
|---|---|
| Patients | 498 |
| Total drug cost | $1,775,551 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | University of Louisville School of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Hospital affiliations
- Adventist Health HanfordHanford, CA
- Adventist Health ReedleyReedley, CA
- Saint Agnes Medical CenterFresno, CA
Industry payments (Open Payments)
- 2025$19,526 · 73 payments from 10 companies
- 2024$4,445 · 59 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $18,794 | 42 |
| Novartis Pharmaceuticals Corporation | $196.29 | 14 |
| Esperion Therapeutics, Inc. | $144.47 | 5 |
| Regeneron Healthcare Solutions, Inc. | $132.66 | 4 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $99.51 | 1 |
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$15,635 · 8 payments
- Travel and Lodging$2,842 · 2 payments
- Food and Beverage$1,050 · 63 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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