Harold Walker, M.D.
NPI 1831188499 · Diagnostic Radiology Physician · Mesa, AZ
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harold Walker, M.D. is a Diagnostic Radiology Physician provider in Mesa, AZ (NPI 1831188499).
Provider details
- NPI number
- 1831188499
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 24034 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 1201 S Alma School RdSuite 14000Mesa, AZ 85210-2008Phone: (480) 545-8119Fax: (480) 926-8332
Registry dates
- Enumerated
- 2005-10-17
- Last updated
- 2019-02-13
Frequently asked questions
- What is Harold Walker's NPI number?
- Harold Walker's National Provider Identifier (NPI) is 1831188499, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Walker's specialty?
- Harold Walker is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Harold Walker located?
- Harold Walker's practice location on file with NPPES is 6424 E Broadway Rd Ste 101, Mesa, AZ 85206-1750.
- What is Harold Walker's phone number?
- The practice phone number listed in the NPPES registry for Harold Walker is (480) 456-9000.
- Does Harold Walker accept Medicare?
- Harold Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harold Walker's NPI active?
- Yes — Harold Walker's NPI (1831188499) is active in the NPPES registry as of the last update on 2019-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.