James Walker
NPI 1003811845 · Diagnostic Radiology Physician · Birmingham, AL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Walker is a Diagnostic Radiology Physician provider in Birmingham, AL (NPI 1003811845).
Provider details
- NPI number
- 1003811845
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 6282 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
326 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 55 | $26 |
| Screening 3d Breast Mammography77063 | 54 | $42 |
| Screening Mammography77067 | 52 | $94 |
| Limited Ultrasound Scan of 1 Breast76642 | 51 | $31 |
| Diagnostic Mammography of Both Breasts77066 | 49 | $43 |
| Diagnostic Mammography of 1 Breast77065 | 41 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-17
- Last updated
- 2022-10-25
Frequently asked questions
- What is James Walker's NPI number?
- James Walker's National Provider Identifier (NPI) is 1003811845, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Walker's specialty?
- James Walker is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is James Walker located?
- James Walker's practice location on file with NPPES is 1717 6th Ave S, Birmingham, AL 35233-1801.
- What is James Walker's phone number?
- The practice phone number listed in the NPPES registry for James Walker is (800) 822-8816.
- Does James Walker accept Medicare?
- James Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Walker's NPI active?
- Yes — James Walker's NPI (1003811845) is active in the NPPES registry as of the last update on 2022-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.