Vivian Bella Ahn, M.D.
NPI 1093151292ActiveIndividual· Obstetrics & Gynecology· San Antonio, TX
Obstetrics & Gynecology (M.D.) in San Antonio, Texas, trained at Texas Tech University Health Science Center School of Medicine (class of 2013). In 2024 Medicare paid $7,055 for 34 patients, and Part D covered 54 of their prescriptions, 80% of them generic. Organon LLC was the largest of 3 companies reporting payments in 2025, $79.41 in all, mostly food and beverage.
Overview
| NPI | 1093151292 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 14, 2013 |
| Last updated in NPPES | May 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | R3987 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 34 |
|---|---|
| Services billed | 95 across 15 procedure codes |
| Paid by Medicare | $7,055 |
Part D prescriptions in 2024
| Prescriptions (claims) | 54 · 79 30-day fills |
|---|---|
| Patients | 23 |
| Total drug cost | $3,549 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Alamo Women's Obstetrics and Gynecology, PLLCSan Antonio, TX · 4 clinicians
Industry payments (Open Payments)
- 2025$79.41 · 6 payments from 3 companies
- 2024$222.32 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organon LLC | $46.02 | 4 |
| Exeltis, USA Inc. | $19.30 | 1 |
| Pacira Pharmaceuticals Incorporated | $14.09 | 1 |
What the 2025 payments were for
- Food and Beverage$79.41 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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