S Joseph Marianayagam, MD
NPI 1679673776ActiveIndividual· Internal Medicine· Lancaster, CA
Internal Medicine (MD) in Lancaster, California, licensed in CA, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $181,133 for 2,581 claims, against $27,998 paid for services in 2024. Lists Antelope Valley Hospital as a hospital affiliation.
Overview
| NPI | 1679673776 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 25, 2006 |
| Last updated in NPPES | Aug 6, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A43915 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 86 |
|---|---|
| Services billed | 331 across 5 procedure codes |
| Paid by Medicare | $27,998 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,581 · 6,160 30-day fills |
|---|---|
| Patients | 195 |
| Total drug cost | $181,133 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1968 |
|---|---|
| Medicare specialty | Internal Medicine |
Hospital affiliation
- Antelope Valley HospitalLancaster, CA
Other facilities
- Blue Sky Home Health Care, IncHome health agency · Van Nuys, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 79 internal medicine physicians in Lancaster · All internal medicine physicians in California