William Duff, RPA-C
William Duff, RPA-C holds NPI 1780603456, with a primary taxonomy of medical physician assistant and a practice location in Prescott, AZ. The number was issued on July 19, 2006 and the NPPES record was last updated on February 26, 2026. The record lists 2 taxonomy codes.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Medical Physician Assistant Primary | 363AM0700X | 7868 (AZ) |
| Physician Assistant | 363A00000X | 7868 (AZ) |
Practice location
Local context
Active NPPES records list 28 providers with medical physician assistant as the primary taxonomy within 25 miles of this practice location's ZIP code, 24 of them within 10 miles.
The same primary taxonomy is listed by 1,062 in Arizona and 40,076 nationwide.
These are counts from NPPES records, not a ranking or recommendation. Distances are measured between ZIP code centers, not street addresses.
Record history
- Name on record
- William F Duff
- Status
- Active
- NPI issued
- Last updated in NPPES
Is this your record? Updates are made through NPPES, the official National Plan and Provider Enumeration System.
NPPES data as of · Source: CMS NPPES
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