Quick answers
- Where does Matthew J. Williams see patients?
- Medicare's clinician data lists 1 practice location in Granada Hills, CA. Call before your visit to confirm the address.
- What is Matthew J. Williams's specialty?
- Medicare lists Physical Therapist in Private Practice as the primary specialty.
- Does Matthew J. Williams accept Medicare assignment?
- Medicare's clinician data says Matthew J. Williams may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Matthew J. Williams's NPI number?
- 1184440075. 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 Matthew J. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 10515 Balboa Blvd, Suite 140Granada Hills, CA 91344
Specialties
Find other clinicians: Physical Therapist in Private Practice, California →
Other physical therapists in Granada Hills
Clinicians with the same Medicare primary specialty in Granada Hills, CA — not a recommendation.
Clinician information
| Credential | PT |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1184440075 |
| 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