Gary Scott Gossen, M.D.
NPI 1124091079ActiveIndividual· Internal Medicine, Gastroenterology· San Antonio, TX
Internal Medicine, Gastroenterology (M.D.) with Gastroenterology Clinic of San Antonio PA, practicing in San Antonio, Texas. Their prescriptions cost Medicare Part D more than their services did: $574,274 for 2,013 claims, against $381,069 paid for services in 2024. Genzyme Corporation was the largest of 7 companies reporting payments in 2025, $341.72 in all, mostly food and beverage.
Overview
| NPI | 1124091079 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Feb 10, 2006 |
| Last updated in NPPES | Oct 15, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | F4014 | 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 - Gastroenterology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 674 |
|---|---|
| Services billed | 13,398 across 38 procedure codes |
| Paid by Medicare | $381,069 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,013 · 4,446 30-day fills |
|---|---|
| Patients | 593 |
| Total drug cost | $574,274 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1975 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Gastroenterology Clinic of San Antonio PASan Antonio, TX · 8 clinicians
Industry payments (Open Payments)
- 2025$341.72 · 14 payments from 7 companies
- 2024$99.54 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $115.42 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $59.25 | 3 |
| Abbvie Inc. | $54.08 | 3 |
| Phathom Pharmaceuticals, Inc. | $41.24 | 3 |
| Aimmune Therapeutics, Inc. | $33.21 | 2 |
What the 2025 payments were for
- Food and Beverage$341.72 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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