Dr. Brian Jens Walker, PH.D.
Dr. Brian Jens Walker is a Mental Health Counselor provider (Counselor) practicing in Tucson, AZ, registered in the NPPES registry with NPI 1285702530 since 2006. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1285702530 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Brian Jens Walker |
| Credential | PH.D. |
| Sex | Male |
| Practice address | Tucson, AZ, 85711 |
| Phone | 5207470821 |
| Fax | 5207905175 |
| Enumeration date | 2006-12-02 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 101YM0800X | Mental Health Counselor | Primary | 1089 | AZ |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1089 | Other | AZ | AZ STATE LICENSE NUMBER |
Copy-ready billing details
Provider: Brian Walker, PH.D. NPI: 1285702530 Taxonomy: 101YM0800X (Mental Health Counselor) Address: Tucson, AZ, 85711
Verify this record
Cross-check NPI 1285702530 against the authoritative CMS record: view Dr. Brian Jens Walker on the official NPPES registry .
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 or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.