Ruben A. Hernandez, MD
Family Medicine (MD) in Lancaster, California, licensed in CA, with an NPI issued in August 2005. Their prescriptions cost Medicare Part D more than their services did: $4,178,491 for 25,987 claims, against $210,036 paid for services in 2024. Dexcom, Inc. was the largest of 29 companies reporting payments in 2025, $3,388 in all, mostly food and beverage. Lists Antelope Valley Hospital and 1 other hospital as hospital affiliations. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1700879897 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 24, 2005 |
| Last updated in NPPES | Feb 21, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A74132 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Ruben Enrique Hernandez · Emergency Med Tech | 1128b4 | Feb 18, 2016 | Pleasanton, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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 | 445 |
|---|---|
| Services billed | 3,316 across 61 procedure codes |
| Paid by Medicare | $210,036 |
Part D prescriptions in 2024
| Prescriptions (claims) | 25,987 · 63,565 30-day fills |
|---|---|
| Patients | 1,755 |
| Total drug cost | $4,178,491 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Hospital affiliations
- Antelope Valley HospitalLancaster, CA
- Palmdale Regional Medical CenterPalmdale, CA
Other facilities
- First Care Home Health, IncHome health agency · La Crescenta, CA
- Promptcare Health Services, Inc.Home health agency · Glendale, CA
- United Home Health, IncHome health agency · La Crescenta, CA
- Ez Comfort Hospice CareHospice · Santa Clarita, CA
Industry payments (Open Payments)
- 2025$3,388 · 146 payments from 29 companies
- 2024$3,103 · 143 payments from 29 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $366.39 | 11 |
| Astrazeneca Pharmaceuticals LP | $351.92 | 11 |
| Glaxosmithkline, LLC. | $327.42 | 10 |
| Novo Nordisk Inc | $253.23 | 11 |
| Merck Sharp & Dohme LLC | $226.31 | 12 |
What the 2025 payments were for
- Food and Beverage$3,388 · 146 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 61 family medicine physicians in Lancaster · All family medicine physicians in California