Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Asia O Williamson-Martinez

Social Worker in Gardena, CA · enumerated 2007.

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

National Provider Identifier

1124227863

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Registry record

Entity type Individual (Type 1)

Name Asia O Williamson-Martinez

Sex Female

Practice address 130 W Victoria St, Gardena, CA, 90248

Phone (310) 715-2020

Enumeration date Jul 12, 2007

Last updated in NPPES Jul 12, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social 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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Asia Williamson-Martinez?

Asia Williamson-Martinez is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Ellinor Soriano Marriage & Family Therapist · Gardena, CA NPI 1619055175 Manuela Siriaco Marriage & Family Therapist · Gardena, CA NPI 1013051515 Efrain Ibarra Marriage & Family Therapist · Gardena, CA NPI 1427193770 Kalolaine Sekona Counselor · Gardena, CA NPI 1477682888 Marianne Lacoste Student in an Organized Health Care Education/Training Program · Gardena, CA NPI 1114057627 Staci Boehle Marriage & Family Therapist · Gardena, CA NPI 1649302837 Humie To Clinical Social Worker · Gardena, CA NPI 1700919875 Carlos Herrera Mental Health Counselor · Gardena, CA NPI 1477686939

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-12.