John Walton, MD
NPI 1417156829 · Diagnostic Radiology Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Walton, MD is a Diagnostic Radiology Physician provider in Oakland, CA (NPI 1417156829).
Provider details
- NPI number
- 1417156829
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A103409 (CA)
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
18 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
115 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 42 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 33 | $44 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 15 | $95 |
| X-Ray of Chest, 2 Views71046 | 14 | $12 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 11 | $84 |
Typical Medicare-allowed amounts for these services range $9–$95 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-16
- Last updated
- 2021-12-15
Frequently asked questions
- What is John Walton's NPI number?
- John Walton's National Provider Identifier (NPI) is 1417156829, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Walton's specialty?
- John Walton is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Walton located?
- John Walton's practice location on file with NPPES is 275 W Macarthur Blvd, Oakland, CA 94611-5641.
- What is John Walton's phone number?
- The practice phone number listed in the NPPES registry for John Walton is (510) 752-1000.
- Does John Walton accept Medicare?
- John Walton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Walton's NPI active?
- Yes — John Walton's NPI (1417156829) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.