NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Derek R Wynn, PA

Medical Physician Assistant in Grangeville, ID · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043689441

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Derek R Wynn
Credential PA
Sex Male
Practice address Grangeville, ID, 83530
Phone (208) 983-1700
Fax (208) 983-4665
Enumeration date Sep 16, 2015
Last updated in NPPES Sep 16, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA-1276 (ID) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Derek Wynn practice?
The practice location on file with NPPES is in Grangeville, ID. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Derek Wynn?
The National Provider Identifier (NPI) for Derek Wynn is 1043689441, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-16.