WILLIAM WON
NPI 1235879776
Physical Medicine & Rehabilitation in Austin, TX
About William Won NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM WON (NPI 1235879776) is an individual physical medicine & rehabilitation provider in Austin, Texas, licensed in Texas (1235879776) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William Won is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show William Won reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Dallas, TX 75244
- Reassigned Medicare billing, Texas enrollment
- 1,246 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
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 William Won's NPI number?
The NPI number for William Won is 1235879776. It was assigned to this individual provider in the NPPES registry on March 31, 2022.
Where is William Won located?
William Won practices at 1600 W 38th St Ste 308, Austin, TX 78731. The listed phone number is (512) 324-7131.
What is William Won's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is William Won enrolled in Medicare?
Yes. William Won is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for William Won's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Won reassigns Medicare benefits to Signify Health Medical Associates, PLLC (Dallas, TX). 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 William Won's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Won was last updated on March 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.