Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Constantine Geor Delis, DO

Nephrology Physician in Melrose Park, IL · enumerated 2005.

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

National Provider Identifier

1003892043

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Constantine Geor Delis

Credential DO

Sex Male

Practice address 675 W North Ave Ste 209, Melrose Park, IL, 60160

Phone (312) 654-2744

Fax (708) 338-1790

Enumeration date Dec 21, 2005

Last updated in NPPES Jul 28, 2025

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 036092711 (IL) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
036092711	Medicaid	IL	-
01615184	Other	IL	BCBS
01621679	Other	IL	BCBS OF IL

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

Is NPI 1003892043 active?

Yes, as of the latest NPPES snapshot, NPI 1003892043 is active (record last updated 2025-07-28).

How do I verify Constantine Delis's NPI record?

Cross-check NPI 1003892043 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-28.