Jeffrey Olejnik MD
About this NPIWhat this record shows.
NPI 1598727620 is registered to Jeffrey Olejnik MD, a Obstetrics & Gynecology practising at 610 N Westgate Ave in Jacksonville, Illinois. Obstetricians and Gynecologists (OB/GYNs) provide medical and surgical care for the female reproductive system, including pregnancy, childbirth, and gynecologic conditions. Jeffrey Olejnik MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 14D1018995IL· Issued by CLIA
- 06932015IL· Issued by BLUE CROSS BLUE SHIELD
- 086246IL· Issued by HEALTH ALLIANCE
- 567115IL· Issued by HEALTHLINK
- 086246IL· Issued by GROUP HEALTH
- DC0359IL· Issued by RAILROAD MEDICARE GROUP N
- 200087204IL· Issued by IRS TAX ID#
- 3333333IL· Issued by UMWA
- P00144121IL· Issued by RAILROAD MEDICARE PIN #
Medicaid
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20040114000483Obstetrics/GynecologyIL
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Jeffrey Olejnik MD accepts. To confirm in-network status with your specific health plan, contact Jeffrey Olejnik MD directly at (217) 243-8455.
Frequently asked
Yes. NPI 1598727620 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Obstetricians and Gynecologists (OB/GYNs) provide medical and surgical care for the female reproductive system, including pregnancy, childbirth, and gynecologic conditions.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (217) 243-8455.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Jeffrey Olejnik MD is a Type-1 individual NPI.