William Moyer Brennan, P.A.-C
NPI 1336231869ActiveIndividual· Physician Assistant, Medical· Tucson, AZ
Physician Assistant, Medical (P.A.-C) with Ironwood Dermatology PC, practicing in Tucson, Arizona. 505 Medicare patients in 2024, $75,567 paid; nearly all of their 232 Part D prescriptions were generic (91%). Janssen Biotech, Inc. was the largest of 3 companies reporting payments in 2025, $63.54 in all, mostly food and beverage.
Overview
| NPI | 1336231869 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A.-C |
| Sole proprietor | No |
| NPI issued | Sep 29, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | 1474 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 505 |
|---|---|
| Services billed | 2,219 across 35 procedure codes |
| Paid by Medicare | $75,567 |
Part D prescriptions in 2024
| Prescriptions (claims) | 232 · 267 30-day fills |
|---|---|
| Patients | 143 |
| Total drug cost | $97,443 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Ironwood Dermatology PCTucson, AZ · 10 clinicians
Industry payments (Open Payments)
- 2025$63.54 · 3 payments from 3 companies
- 2024$173.68 · 8 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $29.50 | 1 |
| Amgen Inc. | $17.74 | 1 |
| Organon LLC | $16.30 | 1 |
What the 2025 payments were for
- Food and Beverage$63.54 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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