Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Sonoran Health Specialists, Inc

Internal Medicine Physician in Scottsdale, AZ · enumerated 2013 · authorized official Hollis Underwood, Owner.

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

National Provider Identifier

1790115178

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Registry record

Entity type Organization (Type 2)

Legal business name Sonoran Health Specialists, Inc

Practice address 8414 E Shea Blvd, Suite 103, Scottsdale, AZ, 85260

Phone (480) 767-3877

Fax (480) 767-3878

Enumeration date Nov 20, 2013

Last updated in NPPES Nov 20, 2013

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Hollis Underwood

Title Owner

Phone (480) 767-3877

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 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.

What type of organization is Sonoran Health Specialists, Inc?

Sonoran Health Specialists, Inc is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-20.