Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dennis Gelyana, M.D, M.P.H

Psychiatry Physician in Glenview, IL · enumerated 2006.

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

National Provider Identifier

1871600429

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Registry record

Entity type Individual (Type 1)

Name Dennis Gelyana

Credential M.D, M.P.H

Sex Male

Practice address 1500 Waukegan Rd, Suite 213, Glenview, IL, 60025

Phone (847) 998-5556

Fax (847) 998-9156

Enumeration date Aug 23, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License A85283 (CA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians 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
01635203	Other	IL	BLUE CROSS BLUE SHIELD

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 Dennis Gelyana practice?

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

What is the NPI number for Dennis Gelyana?

The National Provider Identifier (NPI) for Dennis Gelyana is 1871600429, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.