Jonathan R Walker, MD
Jonathan R Walker is a Urology Physician provider (Urology) practicing in Tucson, AZ, registered in the NPPES registry with NPI 1235220187 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1235220187 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Jonathan R Walker |
| Credential | MD |
| Sex | Male |
| Practice address | 1501 N CAMPBELL AVE, Tucson, AZ, 85724 |
| Phone | 5206944032 |
| Fax | 5206942404 |
| Enumeration date | 2006-09-27 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208800000X | Urology Physician | Primary | 31479 | AZ |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 777550 | Medicaid | AZ | — |
Copy-ready billing details
Provider: Jonathan Walker, MD NPI: 1235220187 Taxonomy: 208800000X (Urology Physician) Address: 1501 N CAMPBELL AVE, Tucson, AZ, 85724
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1285631481 | Rebecca Millius | Individual | Anatomic Pathology & Clinical Pathology Physician | Tucson, AZ |
| 1952309379 | Shaida Namazifard | Individual | Pharmacist | Tucson, AZ |
| 1891793170 | Meddie Nazifi | Individual | Pharmacist | Tucson, AZ |
| 1801896725 | Brian Kopp | Individual | Pharmacotherapy Pharmacist | Tucson, AZ |
| 1306846944 | Kathryn Matthias | Individual | Pharmacist | Tucson, AZ |
| 1205838117 | Carol Schneiderman | Individual | Pharmacist | Tucson, AZ |
| 1932193885 | Mridula Aggarwal | Individual | Internal Medicine Physician | Tucson, AZ |
| 1568458438 | Bhaskar Banerjee | Individual | Gastroenterology Physician | Tucson, AZ |
Verify this record
Cross-check NPI 1235220187 against the authoritative CMS record: view Jonathan R 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.