JAMES MICHAEL WILLIAMS
NPI 1013478254
Radiology - Diagnostic Radiology in Rochester, MN
About James Michael Williams NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES MICHAEL WILLIAMS (NPI 1013478254) is an individual diagnostic radiology provider in Rochester, Minnesota, licensed in Minnesota (67862) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, maintains a secondary practice location in Chicago, and is a graduate of Saint Louis University School Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
James Michael Williams is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show James Williams reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ganado, AZ 86505
- Reassigned Medicare billing, Arizona enrollment
- 204 clinicians in this Medicare group
Young, AZ 85554
- Reassigned Medicare billing, Arizona enrollment
- Also billed through NPI 1871566521 (Arizona)
- 94 clinicians in this Medicare group
Kingman, AZ 86409
- Reassigned Medicare billing, Arizona enrollment
- 418 clinicians in this Medicare group
Salome, AZ 85348
- Reassigned Medicare billing, Arizona enrollment
- 113 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 45
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55905 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCHESTER, MN 55905
ROCHESTER, MN 55905
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is James Williams's NPI number?
The NPI number for James Williams is 1013478254. It was assigned to this individual provider in the NPPES registry on March 29, 2019.
Where is James Williams located?
James Williams practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.
What is James Williams's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is James Williams enrolled in Medicare?
Yes. James Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for James Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Williams reassigns Medicare benefits to 4 organizations: Navajo Health Foundation-Sage Memorial Hospital, Inc. (Ganado, AZ), Cobre Valley Regional Medical Center (Young, AZ), Kingman Healthcare, Inc (Kingman, AZ) and La Paz Regional Hospital, Inc. (Salome, AZ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Williams accept?
Health plans from Blue Cross Blue Shield of Arizona list James Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for James Williams was last updated on August 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.