Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Jeffrey L Olejnik LLC

Q: What type of organization is Jeffrey L Olejnik LLC?

Jeffrey L Olejnik LLC is registered in NPPES as a Obstetrics & Gynecology Physician (its primary provider taxonomy).

Obstetrics & Gynecology Physician in Jacksonville, IL · enumerated 2006 · authorized official Courtney Mcmahan, Office Manager.

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

National Provider Identifier

1053351874

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Registry record

Entity type Organization (Type 2)

Legal business name Jeffrey L Olejnik LLC

Other name <Unavail>

Practice address 1600 W Walnut St, Jacksonville, IL, 62650

Phone (217) 243-5930

Fax (217) 243-8073

Enumeration date Jun 8, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Courtney Mcmahan

Title Office Manager

Phone (217) 243-5930

Other identifiers

Identifier	Type	State	Issuer
DC0359	Other	IL	RAILROAD MEDICARE
06932015	Other	IL	BLUE CROSS BLUE SHIELD
567115	Other	IL	HEALTHLINK

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.

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Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Jeffrey L Olejnik LLC?

Jeffrey L Olejnik LLC is registered in NPPES as a Obstetrics & Gynecology Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.