Andrew Mah, O.D.
NPI 1497286496ActiveIndividual· Optometrist· San Ramon, CA
Optometrist (O.D.) in San Ramon, California, licensed in CA and WA, with an NPI issued in March 2017. Medicare paid $2,714 for services to 27 patients in 2024. Amgen Inc. reported $17.27 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1497286496 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | No |
| NPI issued | Mar 22, 2017 |
| Last updated in NPPES | Mar 22, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 33628 | CA |
| Optometrist | 152W00000X | 60707338 | WA |
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 - Optometry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 27 |
|---|---|
| Services billed | 36 across 8 procedure codes |
| Paid by Medicare | $2,714 |
Industry payments (Open Payments)
- 2025$17.27 · 1 payment from 1 company
- 2024$62.58 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $17.27 | 1 |
What the 2025 payments were for
- Food and Beverage$17.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 optometrists in San Ramon · All optometrists in California