Quick answers
- Where does Holly Williams see patients?
- Medicare's clinician data lists 2 practice locations, including Houston, TX and El Paso, TX. Call before your visit to confirm the address.
- What is Holly Williams's specialty?
- Medicare lists Pediatric Medicine as the primary specialty, and also General Surgery.
- Does Holly Williams accept Medicare assignment?
- Medicare's clinician data says Holly Williams may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Holly Williams's NPI number?
- 1346256567. 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 Holly Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Baylor Plz, 2gr900Houston, TX 77030
- 4849 N Mesa St, Suite 201El Paso, TX 79912
Specialties
- Pediatric Medicineprimary
- General Surgeryalso
Other pediatricians in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1346256567 |
| 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