Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John F Mijer, M.D.

Q: What is the NPI number for John Mijer?

The National Provider Identifier (NPI) for John Mijer is 1154354090, a Type 1 (individual) record in the CMS NPPES registry.

Rheumatology Physician in Ogden, UT · enumerated 2006.

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

National Provider Identifier

1154354090

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Registry record

Entity type Individual (Type 1)

Name Dr. John F Mijer

Credential M.D.

Sex Male

Practice address 4403 Harrison Blvd, Ste 1670, Ogden, UT, 84403

Phone (801) 387-7125

Fax (801) 387-7130

Enumeration date Jul 7, 2006

Last updated in NPPES Jul 8, 2008

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 891812471205 (UT) 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

What is the NPI number for John Mijer?

The National Provider Identifier (NPI) for John Mijer is 1154354090, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Mijer practice?

The practice location on file with NPPES is in Ogden, UT. 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 2008-07-08.