NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Donofrio

Peer Specialist in San Francisco, CA · enumerated 2018.

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

National Provider Identifier

1134626989

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Michael Donofrio
Sex Male
Practice address 1282 Market St, San Francisco, CA, 94102
Fax (415) 941-7371
Enumeration date Apr 9, 2018
Last updated in NPPES Aug 20, 2025

Taxonomy & licenses

175T00000X Peer Specialist Other Service Providers Secondary
175T00000X Peer Specialist Other Service Providers · License MPSS-YSRNLX (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

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 Michael Donofrio?
Michael Donofrio is registered in NPPES with the primary taxonomy of Peer Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-20.