James Williams
NPI 1013478254 · Diagnostic Radiology Physician · Rochester, MN
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Williams is a Diagnostic Radiology Physician provider in Rochester, MN (NPI 1013478254).
Provider details
- NPI number
- 1013478254
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,835 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) |
|---|---|---|
| Screening 3d Breast Mammography77063 | 220 | $27 |
| Screening Mammography77067 | 220 | $35 |
| X-Ray of Chest, 1 View71045 | 150 | $8 |
| X-Ray of Chest, 2 Views71046 | 88 | $10 |
| 3d Radiographic Procedure76376 | 75 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 64 | $37 |
| Ct Scan of Chest Without Contrast71250 |
Practice location
Mailing address
Additional practice locations (1)
- 1740 W Taylor StChicago, IL 60612-7232Phone: (866) 600-2273
Registry dates
- Enumerated
- 2019-03-29
- Last updated
- 2020-08-27
- Certified
- 2020-08-27
Frequently asked questions
- What is James Williams's NPI number?
- James Williams's National Provider Identifier (NPI) is 1013478254, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Williams's specialty?
- James Williams is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is James Williams located?
- James Williams's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905-0001.
- What is James Williams's phone number?
- The practice phone number listed in the NPPES registry for James Williams is (507) 284-2511.
- Does James Williams accept Medicare?
- James Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Williams's NPI active?
- Yes — James Williams's NPI (1013478254) is active in the NPPES registry as of the last update on 2020-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.