Alec Chang, D.O.
NPI 1013259415ActiveIndividual· Psychiatry & Neurology, Psychiatry· Greenbrae, CA
Psychiatry & Neurology, Psychiatry (D.O.) with County of Marin, practicing in Greenbrae, California. Part D covered 64 prescriptions written in 2024, 89% of them generic.
Overview
| NPI | 1013259415 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Mar 23, 2013 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 20A14880 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Psychiatry (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 64 · 64 30-day fills |
|---|---|
| Patients | 16 |
| Total drug cost | $14,128 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Psychiatry |
Medical group
- County of MarinGreenbrae, CA · 19 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 18 psychiatrists in Greenbrae · All psychiatrists in California