Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Darien Rae Lomeli

Community Health Worker in San Francisco, CA · enumerated 2010 · practices at Progress Foundation.

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

National Provider Identifier

1528389657

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Registry record

Entity type Individual (Type 1)

Name Ms. Darien Rae Lomeli

Sex Female

Practice address 405 Baker St, San Francisco, CA, 94117

Phone (415) 346-7775

Fax (415) 346-7555

Enumeration date Jun 11, 2010

Last updated in NPPES Oct 1, 2014

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary

172V00000X Community Health Worker Other 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Darien Lomeli practice?

The practice location on file with NPPES is in San Francisco, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Darien Lomeli?

The National Provider Identifier (NPI) for Darien Lomeli is 1528389657, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-01.