Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Francis J Stagg, MD

Occupational Medicine Physician in Tucson, AZ · enumerated 2007.

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

National Provider Identifier

1265583421

Verified

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Registry record

Entity type Individual (Type 1)

Name Francis J Stagg

Credential MD

Sex Male

Practice address 3402 East Broadway, Tucson, AZ, 85716

Phone (520) 881-0050

Fax (520) 795-8815

Enumeration date Jan 15, 2007

Last updated in NPPES Mar 18, 2009

Taxonomy & licenses

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License 27434 (AZ) Primary

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

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

Is NPI 1265583421 active?

Yes, as of the latest NPPES snapshot, NPI 1265583421 is active (record last updated 2009-03-18).

How do I verify Francis Stagg's NPI record?

Cross-check NPI 1265583421 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-18.