NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria Mier-Rosales

Peer Specialist in San Francisco, CA · enumerated 2023.

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

National Provider Identifier

1205541240

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Maria Mier-Rosales
Sex Female
Practice address 755 S Van Ness Ave, San Francisco, CA, 94110
Enumeration date Jan 13, 2023
Last updated in NPPES Apr 8, 2025

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers Secondary
172V00000X Community Health Worker Other Service Providers Secondary
175T00000X Peer Specialist 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

What is the NPI number for Maria Mier-Rosales?
The National Provider Identifier (NPI) for Maria Mier-Rosales is 1205541240, a Type 1 (individual) record in the CMS NPPES registry.
Where does Maria Mier-Rosales practice?
The practice location on file with NPPES is in 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 2025-04-08.