William S. Shear, MD
NPI 1053523878ActiveIndividual· Internal Medicine, Gastroenterology· Casper, WY
Internal Medicine, Gastroenterology (MD) in Casper, Wyoming, trained at University of Arizona College of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $391,554 for 482 claims, against $109,021 paid for services in 2024. Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $511.33 in all, mostly food and beverage.
Overview
| NPI | 1053523878 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 4, 2007 |
| Last updated in NPPES | Nov 11, 2020 |
| Certified by provider | Nov 11, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | Q7601 | 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 (NE); Practitioner - Gastroenterology (WY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 482 |
|---|---|
| Services billed | 1,136 across 46 procedure codes |
| Paid by Medicare | $109,021 |
Part D prescriptions in 2024
| Prescriptions (claims) | 482 · 812 30-day fills |
|---|---|
| Patients | 212 |
| Total drug cost | $391,554 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | University of Arizona College of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Gastroenterology |
Medical group
- Digestive Care Specialists, LLCCasper, WY · 8 clinicians
Hospital affiliations
- Banner Wyoming Medical CenterCasper, WY
- Memorial Hospital of Converse CountyDouglas, WY
- Platte County HospitalWheatland, WY
- Sagewest Health CareRiverton, WY
- Summit Medical CenterCasper, WY
Industry payments (Open Payments)
- 2025$511.33 · 22 payments from 8 companies
- 2024$263.23 · 13 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $182.69 | 11 |
| Phathom Pharmaceuticals, Inc. | $89.34 | 2 |
| Janssen Biotech, Inc. | $68.56 | 3 |
| Fujifilm Healthcare Americas Corporation | $56.88 | 1 |
| Gilead Sciences, Inc. | $41.52 | 2 |
What the 2025 payments were for
- Food and Beverage$511.33 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Gastroenterology providers in Wyoming →