STEVE R WILLIAMS M.D.
NPI 1639141435
Physical Medicine & Rehabilitation in Philadelphia, PA
About Steve R Williams M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEVE R WILLIAMS M.D. (NPI 1639141435) is an individual physical medicine & rehabilitation provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD460115) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 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 (PECOS)
Steve R Williams M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Steve Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,739 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.
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19107
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 Steve Williams's NPI number?
The NPI number for Steve Williams is 1639141435. It was assigned to this individual provider in the NPPES registry on February 6, 2006.
Where is Steve Williams located?
Steve Williams practices at 25 S 9th St, Philadelphia, PA 19107. The listed phone number is (215) 955-1200.
What is Steve Williams's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Steve Williams enrolled in Medicare?
Yes. Steve Williams is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Steve Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steve Williams reassigns Medicare benefits to Jefferson University Physicians (Philadelphia, PA). The 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 Steve Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Steve Williams accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Steve 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 Steve Williams was last updated on December 20, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.