Michael Nguyen, M.D.
Psychiatry & Neurology, Psychiatry (M.D.) in San Francisco, California, trained at Tulane University School of Medicine (class of 2016). 138 Medicare patients in 2024, $46,359 paid; nearly all of their 269 Part D prescriptions were generic (99%). Alexion Pharmaceuticals, Inc. reported $49.31 in payments in 2025, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1104272046 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 10, 2016 |
| Last updated in NPPES | Oct 8, 2020 |
| Certified by provider | Oct 7, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | A154426 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Michael Minh Nguyen · General Practice | 1128b14 | Sep 20, 2006 | Milpitas, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 138 |
|---|---|
| Services billed | 460 across 19 procedure codes |
| Paid by Medicare | $46,359 |
Part D prescriptions in 2024
| Prescriptions (claims) | 269 · 601 30-day fills |
|---|---|
| Patients | 48 |
| Total drug cost | $10,588 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliation
- California Pacific Medical Ctr-Davies Campus HospSan Francisco, CA
Industry payments (Open Payments)
- 2025$49.31 · 2 payments from 1 company
- 2024$412.70 · 16 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alexion Pharmaceuticals, Inc. | $49.31 | 2 |
What the 2025 payments were for
- Food and Beverage$49.31 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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