Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Brent E Walker, PA-C
Physician Assistant in Tucson, AZ · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528069119
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Registry record
Entity type Individual (Type 1)
Name Brent E Walker
Credential PA-C
Sex Male
Practice address 5301 E Grant Rd, Orthopaedic Bldg, 1st Floor, Tucson, AZ, 85712
Phone (520) 784-6200
Fax (520) 784-6109
Enumeration date Aug 3, 2005
Last updated in NPPES Jun 14, 2013
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1400 (AZ) Primary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1400 (AZ) Secondary
363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1400 (AZ) Secondary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 175514 | Medicaid | AZ | - |
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Brent Walker?
Brent Walker is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-14.