Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gary Alfred Simmons, MD

Anesthesiology Physician in Ogden, UT · enumerated 2006.

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

National Provider Identifier

1588670517

Verified

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Registry record

Entity type Individual (Type 1)

Name Gary Alfred Simmons

Credential MD

Sex Male

Practice address 4401 Harrison Boulevard, Mckay Dee Hospital, Ogden, UT, 84403

Phone (801) 507-5248

Fax (801) 733-5618

Enumeration date Jul 31, 2006

Last updated in NPPES Oct 15, 2012

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 83-170245-1205 (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
1502954	Other	UT	UMWA
36519	Other	UT	DESERET MUTUAL
8597445	Other	UT	WORKERS COMP. FUND
PRA05805	Other	UT	MOLINA
107006049101	Other	UT	IHC
2090168	Other	UT	UNITED HEALTHCARE
37819	Other	UT	PEHP
870545614SI2	Other	UT	EDUCATORS MUTUAL
100501264	Medicaid	NV	-
822149	Medicaid	AZ	-
QM0000075886	Other	UT	ALTIUS
108062800	Medicaid	WY	-
3236	Other	UT	HEALTHY U
804070000	Medicaid	ID	-

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

Is NPI 1588670517 active?

Yes, as of the latest NPPES snapshot, NPI 1588670517 is active (record last updated 2012-10-15).

How do I verify Gary Simmons's NPI record?

Cross-check NPI 1588670517 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-15.