Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael J. Delong, M.D.

Nephrology Physician in Tucson, AZ · enumerated 2006.

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

National Provider Identifier

1912928201

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael J. Delong

Credential M.D.

Sex Male

Practice address 7370 N La Cholla Blvd, Tucson, AZ, 85741

Phone (520) 547-2468

Fax (520) 547-2471

Enumeration date Jul 21, 2006

Last updated in NPPES Oct 23, 2018

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 29546 (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

Where does Michael Delong practice?

The practice location on file with NPPES is in Tucson, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Michael Delong?

The National Provider Identifier (NPI) for Michael Delong is 1912928201, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-23.