NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Nancy Wong, MFT

Marriage & Family Therapist in San Francisco, CA · enumerated 2007 · practices at Glaucoma Consultants of the Bay Area A Med Corp.

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

National Provider Identifier

1891810222

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Registry record

Entity type Individual (Type 1)
Name Ms. Nancy Wong
Credential MFT
Sex Female
Practice address San Francisco, CA, 94115
Phone (925) 736-2785
Fax (925) 736-2785
Enumeration date Mar 21, 2007
Last updated in NPPES Jul 9, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFT1947 (CA) 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

What is the NPI number for Nancy Wong?
The National Provider Identifier (NPI) for Nancy Wong is 1891810222, a Type 1 (individual) record in the CMS NPPES registry.
Where does Nancy Wong practice?
The practice location on file with NPPES is in San Francisco, CA. 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 2021-07-09.