Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Jeffrey L Olejnik, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1598727620

Jeffrey L Olejnik, MD is an Obstetrics/Gynecology in Jacksonville, Illinois. Graduated from Illinois Medical College in 1992, 34 years ago. Practices with SIU Physicians and Surgeons Inc, a 316-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
34
Trained at
Illinois Medical College
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

610 N Westgate Ave
Jacksonville, IL 62650
Phone: (217) 243-8455
Fax: (217) 243-7951
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 036090909 (IL)

Record details

NPI number1598727620
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 4, 2006
Last updated in NPPESMay 18, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolILLINOIS MEDICAL COLLEGE
Graduated 1992 (34 years in practice)
Group practice Siu Physicians And Surgeons Inc — 316 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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