Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Katherine Jelinek, M.D.

Gastroenterology Physician in Geneva, IL · enumerated 2006.

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

National Provider Identifier

1750468591

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Registry record

Entity type Individual (Type 1)

Name Katherine Jelinek

Credential M.D.

Sex Female

Practice address Geneva, IL, 60134

Phone (630) 262-7400

Fax (630) 262-3760

Enumeration date Nov 1, 2006

Last updated in NPPES Jun 26, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 036-108039 (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
P01308433	Other	IL	MEDICARE RR (INDIVIDUAL)
036108039	Medicaid	IL	-
F400122269	Other	IL	MEDICARE PTAN (INDIVIDUAL)
CA4748	Other	IL	MEDICARE RR (GROUP)
206147	Other	IL	MEDICARE PTAN (GROUP)

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 Katherine Jelinek practice?

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

What is the NPI number for Katherine Jelinek?

The National Provider Identifier (NPI) for Katherine Jelinek is 1750468591, 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 2014-06-26.