Jonathan Santos Hernandez, MD
NPI 1538383880ActiveIndividual· Family Medicine· Napa, CA
Family Medicine (MD) with Permanente Medical Group Inc, practicing in Napa, California. Their prescriptions cost Medicare Part D more than their services did: $318,565 for 5,475 claims, against $1,246 paid for services in 2024. Janssen Biotech, Inc. reported $22.64 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1538383880 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 11, 2007 |
| Last updated in NPPES | Jan 24, 2022 |
| Certified by provider | Jan 24, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A99548 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 24 |
|---|---|
| Services billed | 28 across 5 procedure codes |
| Paid by Medicare | $1,246 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,475 · 12,685 30-day fills |
|---|---|
| Patients | 733 |
| Total drug cost | $318,565 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Family Practice |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Industry payments (Open Payments)
- 2025$22.64 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $22.64 | 1 |
What the 2025 payments were for
- Food and Beverage$22.64 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 64 family medicine physicians in Napa · All family medicine physicians in California