Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John E Liljenquist, MD

Endocrinology, Diabetes & Metabolism Physician in Idaho Falls, ID · enumerated 2005.

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

National Provider Identifier

1619977600

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Registry record

Entity type Individual (Type 1)

Name Dr. John E Liljenquist

Credential MD

Sex Male

Practice address 2220 E 25th St, Idaho Falls, ID, 83404

Phone (208) 522-2996

Fax (208) 523-6025

Enumeration date Jul 30, 2005

Last updated in NPPES Jun 2, 2010

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License M4220 (ID) 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
804012300	Other	ID	HEALTHY CONNECTIONS
25852	Other	ID	BLUESHIELD OF IDAHO
113798100	Other	ID	WYOMING CONSULTEC EDS
002530600	Medicaid	ID	-
110008760	Other	ID	RAILROAD MEDICARE
34512	Other	DE	BLUECROSS OF IDAHO

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

What is the NPI number for John Liljenquist?

The National Provider Identifier (NPI) for John Liljenquist is 1619977600, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Liljenquist practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-02.