DR. ROBERT W WILLIAMS JR. MD
NPI 1548424286
Radiology - Vascular & Interventional Radiology in Dearborn, MI
About Dr. Robert W Williams Jr. Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT W WILLIAMS JR. MD (NPI 1548424286) is an individual vascular & interventional radiology provider in Dearborn, Michigan, licensed in Alabama (MD 34053) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with The Hospitals Of Providence - Memorial Campus, and is a graduate of Wayne State University School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. Robert W Williams Jr. Md 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 Robert Williams reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Phenix City, AL 36867
- Reassigned Medicare billing, Alabama enrollment
- 17 clinicians in this Medicare group
Montgomery, AL 36106
- Reassigned Medicare billing, Alabama enrollment
- 16 clinicians in this Medicare group
Shenandoah, TX 77380
- Reassigned Medicare billing, Alabama and Texas enrollments
- Also billed through NPI 1487811766 (Texas)
- 11 clinicians in this Medicare group
Albuquerque, NM 87102
- Reassigned Medicare billing, Alabama enrollment
- 4 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 71
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
The Hospitals Of Providence - Memorial Campus
Acute Care Hospitals · El Paso, TXLas Palmas Medical Center A Campus Of Lpds Healthc
Acute Care Hospitals · El Paso, TXSierra Medical Center
Acute Care Hospitals · El Paso, TXThe Hospitals Of Providence - East Campus
Acute Care Hospitals · El Paso, TXThe Hospitals Of Providence Transmountain Campus
Acute Care Hospitals · El Paso, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48124 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
DEARBORN, MI 48124
DEARBORN, MI 48124
DEARBORN, MI 48124
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 Robert Williams's NPI number?
The NPI number for Robert Williams is 1548424286. It was assigned to this individual provider in the NPPES registry on July 11, 2008.
Where is Robert Williams located?
Robert Williams practices at 18101 Oakwood Blvd Oakwood Hospital And Medical Center, Dearborn, MI 48124. The listed phone number is (313) 436-2577.
What is Robert Williams's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.
Is Robert Williams enrolled in Medicare?
Yes. Robert 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 Robert Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Williams reassigns Medicare benefits to 4 organizations: Bridgeway Diagnostic Radiology (Phenix City, AL), Radiology Group, P.A. (Montgomery, AL), Singleton Associates PA (Shenandoah, TX) and Imaging Associates Of New Mexico LLC (Albuquerque, NM). 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 Robert Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Williams accept?
Health plans from Blue Cross and Blue Shield of Texas and Community First list Robert 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.
Is Robert Williams affiliated with any hospitals?
According to CMS data, Robert Williams is affiliated with The Hospitals Of Providence - Memorial Campus, Las Palmas Medical Center A Campus Of Lpds Healthc, Sierra Medical Center, The Hospitals Of Providence - East Campus and The Hospitals Of Providence Transmountain Campus.
When was this NPI record last updated?
The NPPES record for Robert Williams was last updated on October 17, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.