Andrew Mertz, MD
NPI 1063948115ActiveIndividual· Internal Medicine, Gastroenterology· Fort Sam Houston, TX
Internal Medicine, Gastroenterology (MD) in Fort Sam Houston, Texas, licensed in VA, with an NPI issued in May 2017. Part D covered 32 prescriptions written in 2024, 100% of them generic. Boston Scientific Corporation was the largest of 5 companies reporting payments in 2025, $5,783 in all, mostly travel and lodging.
Overview
| NPI | 1063948115 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 11, 2017 |
| Last updated in NPPES | Aug 4, 2025 |
| Certified by provider | Aug 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 0101266558 | VA |
| Internal Medicine | 207R00000X | 0101266558 | VA |
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 Order and Referring Only - Internal Medicine (VA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 32 · 45 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $230.28 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$5,783 · 36 payments from 5 companies
- 2024$3,272 · 21 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $4,939 | 32 |
| Ovesco Endoscopy USA, Inc. | $496.50 | 1 |
| Olympus America Inc. | $139.74 | 1 |
| Madrigal Pharmaceuticals | $124.92 | 1 |
| Merit Medical Systems Inc | $82.55 | 1 |
What the 2025 payments were for
- Travel and Lodging$3,685 · 17 payments
- Food and Beverage$2,098 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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