Saima Mahmood, MD
NPI 1477555811ActiveIndividual· Internal Medicine· Castro Valley, CA
Internal Medicine (MD) in Castro Valley, California, licensed in NV and CA, with an NPI issued in August 2005. 393 Medicare patients in 2024, $538,886 paid; nearly all of their 56 Part D prescriptions were generic (91%). Lists Eden Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1477555811 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 15, 2005 |
| Last updated in NPPES | Oct 18, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 11547 | NV |
| Internal Medicine | 207R00000X | A122980 | 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 - Infectious Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 393 |
|---|---|
| Services billed | 4,957 across 10 procedure codes |
| Paid by Medicare | $538,886 |
Part D prescriptions in 2024
| Prescriptions (claims) | 56 · 58 30-day fills |
|---|---|
| Patients | 25 |
| Total drug cost | $3,063 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
Hospital affiliations
- Eden Medical CenterCastro Valley, CA
- Midland Memorial HospitalMidland, TX
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 31 internal medicine physicians in Castro Valley · All internal medicine physicians in California