NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Williams

Recreation Therapist in San Antonio, TX · enumerated 2022.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1275243909

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Margaret Williams
Sex Female
Practice address 7400 Merton Minter St, San Antonio, TX, 78229
Phone (210) 617-5300
Enumeration date Dec 5, 2022
Last updated in NPPES Dec 5, 2022

Taxonomy & licenses

225800000X Recreation Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Margaret Williams practice?
The practice location on file with NPPES is in San Antonio, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Margaret Williams?
The National Provider Identifier (NPI) for Margaret Williams is 1275243909, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-05.