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

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.