Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gail Patricia Williams, PHD, RN, PMHCNS-BC

Adult Psychiatric/Mental Health Clinical Nurse Specialist in San Antonio, TX · enumerated 2012.

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

National Provider Identifier

1104196492

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Registry record

Entity type Individual (Type 1)

Name Dr. Gail Patricia Williams

Credential PHD, RN, PMHCNS-BC

Sex Female

Practice address 7703 Floyd Curl Dr, Rm 1.422, San Antonio, TX, 78229

Phone (210) 467-9355

Fax (210) 567-5903

Enumeration date Jan 4, 2012

Last updated in NPPES Apr 6, 2012

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 241022-1 (NY) Secondary

364SP0809X Adult Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 570309 (TX) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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

What is the NPI number for Gail Williams?

The National Provider Identifier (NPI) for Gail Williams is 1104196492, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gail 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-06.