Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stuart A Issleib, MD

Gastroenterology Physician in La Grange Highlands, IL · enumerated 2005.

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

National Provider Identifier

1497740393

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Registry record

Entity type Individual (Type 1)

Name Stuart A Issleib

Credential MD

Sex Male

Practice address 5201 Willow Springs Rd Ste 450, La Grange Highlands, IL, 60525

Phone (630) 336-7870

Fax (312) 328-7986

Enumeration date Sep 16, 2005

Last updated in NPPES Apr 19, 2018

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 036074032 (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
036074032	Medicaid	IL	-
110033745	Other	IL	RAILROAD MEDICARE
100009999	Other	IL	RAILROAD MEDICARE
31603503	Other	IL	BCBS PROVIDER ID
238276	Other	IL	WELLCARE HMO

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 Stuart Issleib practice?

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

What is the NPI number for Stuart Issleib?

The National Provider Identifier (NPI) for Stuart Issleib is 1497740393, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-19.