Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Thunderbird Internal Medicine, Ltd.

Internal Medicine Physician in Glendale, AZ · enumerated 2005 · authorized official Brian Riveland, Ceo.

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

National Provider Identifier

1407837149

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Registry record

Entity type Organization (Type 2)

Legal business name Thunderbird Internal Medicine, Ltd.

Practice address 5620 W. Thunderbird Rd., Suite F-1, Glendale, AZ, 85306

Phone (602) 938-6960

Fax (602) 938-6069

Enumeration date Nov 9, 2005

Last updated in NPPES Jun 12, 2013

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Brian Riveland

Title Ceo

Phone (602) 938-6960

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-06-12. Verify at npiregistry.cms.hhs.gov.

Where is Thunderbird Internal Medicine, Ltd. located?

The practice location on file with NPPES is in Glendale, AZ.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-12.