Stanley H. Ma, P.A.
NPI 1871881755ActiveIndividual· Physician Assistant· Sunnyvale, CA
Physician Assistant (P.A.) with Sutter Bay Medical Foundation, practicing in Sunnyvale, California. In 2024 Medicare paid $15,342 for 165 patients, and Part D covered 222 of their prescriptions, 80% of them generic.
Overview
| NPI | 1871881755 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A. |
| Sole proprietor | No |
| NPI issued | Jul 13, 2011 |
| Last updated in NPPES | Sep 2, 2021 |
| Certified by provider | Sep 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA21685 | CA |
| Physician Assistant, Surgical | 363AS0400X | PA21685 | CA |
| Physician Assistant, Medical | 363AM0700X | PA21685 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 165 |
|---|---|
| Services billed | 204 across 12 procedure codes |
| Paid by Medicare | $15,342 |
Part D prescriptions in 2024
| Prescriptions (claims) | 222 · 320 30-day fills |
|---|---|
| Patients | 105 |
| Total drug cost | $19,884 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
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 27 physician assistants in Sunnyvale · All physician assistants in California