Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Edward Rejowski, MD

Otolaryngology Physician in Hinsdale, IL · enumerated 2006.

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

National Provider Identifier

1164492153

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Registry record

Entity type Individual (Type 1)

Name Dr. James Edward Rejowski

Credential MD

Sex Male

Practice address 950 N York Rd, Suite 109, Hinsdale, IL, 60521

Phone (630) 654-1391

Fax (630) 654-1967

Enumeration date Jan 24, 2006

Last updated in NPPES Mar 24, 2015

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 036-059620 (IL) 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
399980	Other	IL	GROUP PTAN

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 James Rejowski practice?

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

What is the NPI number for James Rejowski?

The National Provider Identifier (NPI) for James Rejowski is 1164492153, 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 2015-03-24.