Brian C. Weis, MD
NPI 1801827449ActiveIndividual· Internal Medicine· Amarillo, TX
Internal Medicine (MD) in Amarillo, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $2,116,412 for 2,687 claims, against $21,021 paid for services in 2024. Viiv Healthcare Company reported $34.92 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1801827449 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 5, 2006 |
| Last updated in NPPES | Aug 16, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | L1235 | 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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 131 |
|---|---|
| Services billed | 338 across 17 procedure codes |
| Paid by Medicare | $21,021 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,687 · 3,145 30-day fills |
|---|---|
| Patients | 95 |
| Total drug cost | $2,116,412 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
Medical group
- Texas Tech University Health Sciences Center AmarilloAmarillo, TX · 76 clinicians
Hospital affiliation
- Northwest Texas HospitalAmarillo, TX
Industry payments (Open Payments)
- 2025$34.92 · 1 payment from 1 company
- 2024$194.14 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $34.92 | 1 |
What the 2025 payments were for
- Food and Beverage$34.92 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 105 internal medicine physicians in Amarillo · All internal medicine physicians in Texas