William Bihshing Shay, M.D.
NPI 1922042639ActiveIndividual· Internal Medicine· Victoria, TX
Internal Medicine (M.D.) in Victoria, Texas, trained at University of Texas Medical School at San Antonio (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $1,044,119 for 8,991 claims, against $263,228 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 12 companies reporting payments in 2025, $1,007 in all, mostly food and beverage.
Overview
| NPI | 1922042639 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 15, 2006 |
| Last updated in NPPES | Sep 20, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | J5589 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 294 |
|---|---|
| Services billed | 11,838 across 36 procedure codes |
| Paid by Medicare | $263,228 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,991 · 20,806 30-day fills |
|---|---|
| Patients | 495 |
| Total drug cost | $1,044,119 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Citizens Medical CenterVictoria, TX
- De Tar Hospital NavarroVictoria, TX
- El Campo Memorial HospitalEl Campo, TX
- Jackson Healthcare CenterEdna, TX
- Refugio County Memorial HospitalRefugio, TX
Other facilities
- Elite Home HealthHome health agency · Victoria, TX
- Pam Health at HomeHome health agency · Buda, TX
Industry payments (Open Payments)
- 2025$1,007 · 48 payments from 12 companies
- 2024$887.20 · 49 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $224.19 | 11 |
| Lilly USA, LLC | $200.89 | 9 |
| Bayer Healthcare Pharmaceuticals Inc. | $145.44 | 8 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $101.09 | 5 |
| Amgen Inc. | $73.92 | 4 |
What the 2025 payments were for
- Food and Beverage$1,003 · 47 payments
- Education$4.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 41 internal medicine physicians in Victoria · All internal medicine physicians in Texas