DR. TROY R WILLIAMS MD
NPI 1104912591
Family Medicine in Austin, TX
About Dr. Troy R Williams Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TROY R WILLIAMS MD (NPI 1104912591) is an individual family medicine provider in Austin, Texas, licensed in Texas (N4206) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Antonio.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Troy R Williams Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Troy Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78753
- Reassigned Medicare billing, Texas enrollment
- 198 clinicians in this Medicare group
Austin, TX 78757
- Reassigned Medicare billing, Texas enrollment
- 802 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78753 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 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AUSTIN, TX 78753
AUSTIN, TX 78753
AUSTIN, TX 78753
AUSTIN, TX 78753
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 Troy Williams's NPI number?
The NPI number for Troy Williams is 1104912591. It was assigned to this individual provider in the NPPES registry on October 5, 2006.
Where is Troy Williams located?
Troy Williams practices at 8300 N Lamar Blvd Ste 200A, Austin, TX 78753. The listed phone number is (512) 575-9555.
What is Troy Williams's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Troy Williams enrolled in Medicare?
Yes. Troy Williams is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Troy Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Troy Williams reassigns Medicare benefits to 2 organizations: Total MD Physicians Group, PLLC (Austin, TX) and Vpa Of Texas PLLC (Austin, TX). 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 Troy Williams'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 Troy Williams was last updated on May 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.