Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Alexander M Perrian, MD

Internal Medicine Physician in Tucson, AZ · enumerated 2005.

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

National Provider Identifier

1669456844

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Registry record

Entity type Individual (Type 1)

Name Alexander M Perrian

Credential MD

Sex Male

Practice address Tucson, AZ, 85715

Phone (520) 290-0300

Fax (520) 298-9230

Enumeration date Dec 1, 2005

Last updated in NPPES Sep 21, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 23321 (AZ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1Z7530	Other	-	HEALTHNET
002000166	Other	-	CIGNA
1420406	Other	-	UNITED HEALTHCARE
110111218	Other	-	RR MEDICARE
98985	Other	-	PACIFICARE SECRUE HORIZON
AZ0380220	Other	-	BLUE CROSS BLUE SHIELD

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 do I verify Alexander Perrian's NPI record?

Cross-check NPI 1669456844 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1669456844 active?

Yes, as of the latest NPPES snapshot, NPI 1669456844 is active (record last updated 2016-09-21).

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Rebecca Natrajan Gastroenterology Physician · Tucson, AZ NPI 1417945833 Kathleen Quillen Nurse Practitioner · Tucson, AZ NPI 1487691069 Mitchell Parker Endocrinology, Diabetes & Metabolism Physician · Tucson, AZ NPI 1225077902 Le Roi Baez Gastroenterology Physician · Tucson, AZ NPI 1821039314 Coronado Internal Medicine PC Internal Medicine Physician · Tucson, AZ NPI 1932293032 Jeffrey Mayer Internal Medicine Physician · Tucson, AZ NPI 1538253620 Janet Weber Nurse Practitioner · Tucson, AZ NPI 1316091408 Bari Orozco Gerontology Nurse Practitioner · Tucson, AZ NPI 1427263094

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-21.