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ANA CAROLINE LEON WILLIAMS
NPI 1598213779
Marriage & Family Therapist in San Mateo, CA

Active since September 15, 2016
501 1ST AVE STE 1, SAN MATEO, CA 94401(650) 989-0403 Get Directions Write a Review

NPPES record last updated: February 24, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 24, 2022, Feb 18, 2022, May 2, 2019 and 1 more (4 updates tracked since 2016).

About Ana Caroline Leon Williams NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANA CAROLINE LEON WILLIAMS (NPI 1598213779) is an individual marriage & family therapist in San Mateo, California and active in the NPI registry since September 2016.

NPPES Registry Identity

NPI1598213779
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameANA CAROLINE LEON WILLIAMS
Location Address501 1ST AVE STE 1San Mateo, CA 94401-3476
Mailing Address501 1st Ave Ste 1San Mateo, CA 94401-3476 · (650) 989-0403
Phone(650) 989-0403
Sole ProprietorYes
Enumeration DateSeptember 15, 2016
Last NPPES UpdateFebruary 24, 20224 updates tracked since enumeration
NPPES CertifiedFebruary 24, 2022
✔ NPI 1598213779 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
501 1ST AVE STE 1, San Mateo, CA 94401
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AUTHENTICALLY THRIVE MARRIAGE & FAMILY THERAPY, INC.
Marriage & Family Therapist
501 1ST AVE STE 1
SAN MATEO, CA 94401
San Mateo County (650) 989-0403

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ana Leon Williams's NPI number?

The NPI number for Ana Leon Williams is 1598213779. It was assigned to this individual provider in the NPPES registry on September 15, 2016.

Where is Ana Leon Williams located?

Ana Leon Williams practices at 501 1st Ave Ste 1, San Mateo, CA 94401. The listed phone number is (650) 989-0403.

What is Ana Leon Williams's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

What insurance does Ana Leon Williams accept?

Health plans from Providence Health Plan list Ana Leon Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ana Leon Williams was last updated on February 24, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.