Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Stephen Horgan

Peer Specialist in Redwood City, CA · enumerated 2025.

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

National Provider Identifier

1194616086

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Registry record

Entity type Individual (Type 1)

Name Michael Stephen Horgan

Sex Male

Practice address 2686 Spring St, Redwood City, CA, 94063

Phone (650) 257-8820

Fax (650) 507-4071

Enumeration date Jul 10, 2025

Last updated in NPPES Jul 10, 2025

Taxonomy & licenses

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 specialty is Michael Horgan?

Michael Horgan 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-10.