Adam Christopher Hafemeister, MD
NPI 1225268261ActiveIndividual· Internal Medicine, Gastroenterology· Austin, TX
Internal Medicine, Gastroenterology (MD) in Austin, Texas, trained at University of Texas Medical School at Houston (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $364,095 for 764 claims, against $91,114 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $1,135 in all, mostly food and beverage.
Overview
| NPI | 1225268261 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 24, 2009 |
| Last updated in NPPES | Aug 20, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | P1181 | 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 | 499 |
|---|---|
| Services billed | 857 across 23 procedure codes |
| Paid by Medicare | $91,114 |
Part D prescriptions in 2024
| Prescriptions (claims) | 764 · 1,614 30-day fills |
|---|---|
| Patients | 307 |
| Total drug cost | $364,095 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at Houston |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Austin Gastroenterology PLLCRound Rock, TX · 76 clinicians
Hospital affiliations
- Ascension Seton HaysKyle, TX
- St David's South Austin Medical CenterAustin, TX
Industry payments (Open Payments)
- 2025$1,135 · 62 payments from 14 companies
- 2024$1,435 · 72 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $404.49 | 20 |
| Pfizer Inc. | $172.72 | 16 |
| Qol Medical, LLC | $138.50 | 5 |
| Janssen Biotech, Inc. | $88.50 | 4 |
| Ardelyx, Inc. | $55.55 | 3 |
What the 2025 payments were for
- Food and Beverage$1,135 · 62 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 72 gastroenterologists in Austin · All gastroenterologists in Texas