Quick answers
- Where does Jason D. Williams see patients?
- Medicare's clinician data lists 6 practice locations, including San Antonio, TX, Kyle, TX and Carrollton, TX. Call before your visit to confirm the address.
- What is Jason D. Williams's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Jason D. Williams accept Medicare assignment?
- Medicare's clinician data says Jason D. Williams may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Jason D. Williams?
- (512) 550-1800, as listed in official Medicare / NPI Registry data.
- What is Jason D. Williams's NPI number?
- 1366434516. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Jason D. Williams is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 115 N Loop 1604, Suite 1204San Antonio, TX 78232 (512) 550‑1800
- 147 Elmhurst, Suite 200Kyle, TX 78640 (512) 550‑1800
- 2710 N Josey LnCarrollton, TX 75007 (469) 701‑9108
- 2710 N Josey Ln, 301 Green Oaks CarrolltonCarrollton, TX 75007 (469) 701‑9108
- 401 W Slaughter Ln, Suite 300Austin, TX 78748 (512) 550‑1800
Group practices
Medicare enrollment lists Jason D. Williams as a member of these groups (CMS data updated 2026-10-02).
- Green Oaks Physical Therapy Limited Partnership242 clinicians in the group
- Sinus and Allergy Specialists of Texas44 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1366434516 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians