Quick answers
- Where does Mallory Williams see patients?
- Medicare's clinician data lists 3 practice locations, including Houston, TX, Tulsa, OK and El Paso, TX. Call before your visit to confirm the address.
- What is Mallory Williams's specialty?
- Medicare lists Clinical Social Worker as the primary specialty.
- Does Mallory Williams accept Medicare assignment?
- Medicare's clinician data says Mallory 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 Mallory Williams?
- (918) 640-9871, as listed in official Medicare / NPI Registry data.
- What is Mallory Williams's NPI number?
- 1861064396. 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 Mallory Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 3333 Weslayan St, Apt 1216Houston, TX 77027
- 3721 N Garrison AveTulsa, OK 74106 (918) 640‑9871
- 5741 Belding Dr, Suite BEl Paso, TX 79925
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | CSW |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1861064396 |
| 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