Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Callahan, MD

Orthopaedic Surgery Physician in Provo, UT · enumerated 2006.

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

National Provider Identifier

1104864651

Verified

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Registry record

Entity type Individual (Type 1)

Name Michael Callahan

Credential MD

Sex Male

Practice address 1055 N 500 W, Provo, UT, 84604

Phone (801) 763-3885

Fax (801) 763-3887

Enumeration date Jun 4, 2006

Last updated in NPPES Oct 22, 2007

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 160421-1205 (UT) 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
870281028000	Medicaid	UT	-
36397	Other	UT	DMBA
P00124656	Other	-	PALMETTO GBA
215835	Other	UT	ALTIUS
78392	Other	UT	PEHP
107006256103	Other	UT	IHC
3362695	Other	UT	CIGNA
09-00529	Other	UT	UNITED HEALTHCARE

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

Where does Michael Callahan practice?

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

What is the NPI number for Michael Callahan?

The National Provider Identifier (NPI) for Michael Callahan is 1104864651, 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 2007-10-22.