Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Radiology Specialists of Southern Arizona

Diagnostic Radiology Physician in Sierra Vista, AZ · enumerated 2006 · authorized official Alan Osumi, Partner.

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

National Provider Identifier

1871546853

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Registry record

Entity type Organization (Type 2)

Legal business name Radiology Specialists of Southern Arizona

Practice address 300 El Camino Real, Sierra Vista, AZ, 85635

Phone (520) 417-3104

Fax (520) 417-3108

Enumeration date May 18, 2006

Last updated in NPPES Nov 7, 2007

Taxonomy & classification

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Alan Osumi

Title Partner

Phone (520) 417-3104

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 type of organization is Radiology Specialists of Southern Arizona?

Radiology Specialists of Southern Arizona is registered in NPPES as a Diagnostic Radiology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-07.