NPI Portal NPI Lookup & Verification

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

Mariah Andrea Hart, MS

Marriage & Family Therapist in South San Francisco, CA · enumerated 2022 · practices at Ymca of San Francisco.

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

National Provider Identifier

1184354102

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mariah Andrea Hart
Credential MS
Sex Female
Practice address South San Francisco, CA, 94080
Phone (415) 936-5481
Enumeration date Jun 13, 2022
Last updated in NPPES Jun 14, 2024

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

Taxonomy & licenses

172V00000X Community Health Worker Other Service Providers Secondary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 141923 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mariah Hart?
The National Provider Identifier (NPI) for Mariah Hart is 1184354102, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mariah Hart practice?
The practice location on file with NPPES is in South San Francisco, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-14.