NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Island Medical Services

Addiction Medicine (Internal Medicine) Physician in San Fernando, CA · enumerated 2021 · authorized official Michael Yadegari, Ceo.

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

National Provider Identifier

1831867324

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Island Medical Services
Practice address 326 N Maclay Ave, San Fernando, CA, 91340
Fax (213) 745-0152
Enumeration date Aug 31, 2021
Last updated in NPPES Aug 31, 2021

Taxonomy & classification

207RA0401X Addiction Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Michael Yadegari
Title Ceo

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 Island Medical Services?
The NPI for Island Medical Services is 1831867324, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Island Medical Services?
NPPES lists Michael Yadegari (Ceo) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-31.