William Pfau, M.D.
NPI 1346204641ActiveIndividual· Internal Medicine, Gastroenterology· Reno, NV
Internal Medicine, Gastroenterology (M.D.) in Reno, Nevada, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $903,817 for 976 claims, against $104,839 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $1,028 in all, mostly food and beverage.
Overview
| NPI | 1346204641 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 13, 2006 |
| Last updated in NPPES | Mar 28, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 10011 | NV |
| Internal Medicine | 207R00000X | 10011 | NV |
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 (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 538 |
|---|---|
| Services billed | 1,089 across 49 procedure codes |
| Paid by Medicare | $104,839 |
Part D prescriptions in 2024
| Prescriptions (claims) | 976 · 1,706 30-day fills |
|---|---|
| Patients | 320 |
| Total drug cost | $903,817 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Kansas School of Med (Kc/Wich/Sal) |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Gastroenterology |
Medical group
- Digestive Health AssociatesReno, NV · 37 clinicians
Hospital affiliations
- Carson Tahoe Regional Medical CenterCarson City, NV
- Northern Nevada Medical CenterSparks, NV
- Renown Regional Medical CenterReno, NV
- Renown South Meadows Medical CenterReno, NV
- Saint Mary's Regional Medical CenterReno, NV
Industry payments (Open Payments)
- 2025$1,028 · 50 payments from 10 companies
- 2024$1,288 · 56 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $511.64 | 30 |
| Janssen Biotech, Inc. | $209.66 | 8 |
| Madrigal Pharmaceuticals | $125.75 | 2 |
| Lilly USA, LLC | $50.59 | 2 |
| Phathom Pharmaceuticals, Inc. | $39.49 | 3 |
What the 2025 payments were for
- Food and Beverage$939.26 · 49 payments
- Education$89.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 30 gastroenterologists in Reno · All gastroenterologists in Nevada