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Harold D Segal M D Inc

Specialist in San Luis Obispo, CA · enumerated 2016 · authorized official Harold Segal, Owner.

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

National Provider Identifier

1588109870

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Registry record

Entity type Organization (Type 2)
Legal business name Harold D Segal M D Inc
Practice address 140 Casa St, San Luis Obispo, CA, 93405
Phone (805) 543-4319
Fax (805) 543-0446
Enumeration date Dec 22, 2016
Last updated in NPPES Jan 18, 2017

Taxonomy & classification

174400000X Specialist Other Service Providers · License A32286 (CA) Primary

Authorized official

Name Harold Segal
Title Owner
Phone (805) 543-4319

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.

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Frequently asked questions

What is the NPI number for Harold D Segal M D Inc?
The NPI for Harold D Segal M D Inc is 1588109870, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Harold D Segal M D Inc?
NPPES lists Harold Segal (Owner) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-18.