DR. STEPHEN ARNOLD WILLIAMS M.D.
NPI 1598816878
Radiology - Diagnostic Radiology in Morehead, KY
About Dr. Stephen Arnold Williams M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN ARNOLD WILLIAMS M.D. (NPI 1598816878) is an individual diagnostic radiology provider in Morehead, Kentucky, licensed in Kentucky (41968) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with St Claire Regional Medical Center, and is a graduate of University Of Louisville School Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses
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. Stephen Arnold Williams M.d. 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
2Medicare enrollment records show Stephen Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Morehead, KY 40351
- Reassigned Medicare billing, Kentucky enrollment
- 296 clinicians in this Medicare group
Wexford, PA 15090
- Reassigned Medicare billing, Kentucky enrollment
- 15 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 52
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Claire Regional Medical Center
Acute Care Hospitals · Morehead, KYSaint Joseph Mount Sterling
Acute Care Hospitals · Mount Sterling, KYUniversity Of Kentucky Hospital
Acute Care Hospitals · Lexington, KYMorgan County Arh Hospital
Critical Access Hospitals · West Liberty, KYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 40351 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.
MOREHEAD, KY 40351
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 Stephen Williams's NPI number?
The NPI number for Stephen Williams is 1598816878. It was assigned to this individual provider in the NPPES registry on January 15, 2007.
Where is Stephen Williams located?
Stephen Williams practices at 222 Medical Cir, Morehead, KY 40351. The listed phone number is (859) 608-9093.
What is Stephen Williams's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Stephen Williams enrolled in Medicare?
Yes. Stephen 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 Stephen Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Williams reassigns Medicare benefits to 2 organizations: St Claire Medical Center Inc (Morehead, KY) and Foundation Radiology Group PC (Wexford, PA). 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 Stephen Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Williams accept?
Health plans from Blue Cross and Blue Shield of Texas and CareSource list Stephen 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 Stephen Williams affiliated with any hospitals?
According to CMS data, Stephen Williams is affiliated with St Claire Regional Medical Center, Saint Joseph Mount Sterling, University Of Kentucky Hospital and Morgan County Arh Hospital.
When was this NPI record last updated?
The NPPES record for Stephen Williams was last updated on April 4, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.