Thanh-Mai Trinh, MD
NPI 1578589560ActiveIndividual· Obstetrics & Gynecology· Garden Grove, CA
Obstetrics & Gynecology (MD) in Garden Grove, California, trained at University of California, Irvine, California College of Medicine (class of 1994). 215 Medicare patients in 2024, $39,626 paid; nearly all of their 181 Part D prescriptions were generic (92%). Mayne Pharma Commercial LLC was the largest of 2 companies reporting payments in 2025, $470.95 in all, mostly food and beverage.
Overview
| NPI | 1578589560 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 14, 2006 |
| Last updated in NPPES | Feb 25, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | A60206 | 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 - Obstetrics/Gynecology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 215 |
|---|---|
| Services billed | 569 across 14 procedure codes |
| Paid by Medicare | $39,626 |
Part D prescriptions in 2024
| Prescriptions (claims) | 181 · 235 30-day fills |
|---|---|
| Patients | 116 |
| Total drug cost | $5,024 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Obstetrics/Gynecology |
Industry payments (Open Payments)
- 2025$470.95 · 4 payments from 2 companies
- 2024$122.82 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mayne Pharma Commercial LLC | $240.56 | 2 |
| Sumitomo Pharma America, Inc. | $230.39 | 2 |
What the 2025 payments were for
- Food and Beverage$470.95 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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