Damian Olejarski, DO
Family Medicine Physician · Westchester, IL
Damian Olejarski, DO is a family medicine physician with a practice address in Westchester, Illinois, and NPI 1679103972, issued on Jan 25, 2020. Check the license (Illinois 036-166866, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Damian Olejarski
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036-166866 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2434 Wolf RD, Westchester, IL 60154
- Phone
- (708) 562-5430
- Enumerated
- Jan 25, 2020
- Record last updated
- Jul 10, 2024
- Medicare enrollment
- Enrolled (PECOS I20231213003368); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2021
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 2434 Wolf RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicholas Auriemma, MDFamily Medicine Physician1306405642
- Sehar Fatima, DOFamily Medicine Physician1487274593
- Patrick Francis, DOFamily Medicine Physician1316681299
- Donald Higgins, DOFamily Medicine Physician1548211956
- Lynn Jonen, PHDClinical Psychologist1467607069
- Kevin Kalafut, D.O.Family Medicine Physician1437508371
Verify Damian Olejarski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-166866Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
283 Medicare Part D claims for 125 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Sertraline Hcl16 claims
- Atorvastatin Calcium15 claims
- Meloxicam15 claims
- Lisinopril12 claims
- Prednisone12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $71.75
4 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Adventist Health Partners, Inc.Westchester, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Damian Olejarski among 6,215 family medicine physician records in Illinois
Damian Olejarski, DO is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 81% of them.
- NPI issued2020 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2021 · median 2006 among the 3,714 with a school on file
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 family medicine physician records list a practice address in Westchester
They are 13 of the 320 NPPES records with a practice address in Westchester, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Westchester → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nicholas Auriemma, MDWestchester, IL 601541306405642
- Sehar Fatima, DOWestchester, IL 601541487274593
- Patrick Francis, DOWestchester, IL 601541316681299
- Donald Higgins, DOWestchester, IL 601541548211956
- Kevin Kalafut, D.O.Westchester, IL 601541437508371
- Tracy Koziol, MDWestchester, IL 601541699981332
- Thomas Nelson, DOWestchester, IL 601541770535973
- Kenneth Nelson, MDWestchester, IL 601541700838745
Common questions
What is Damian Olejarski, DO's NPI number?
Damian Olejarski, DO's National Provider Identifier (NPI) is 1679103972, issued on Jan 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Damian Olejarski, DO located?
The NPPES record lists a practice address at 2434 Wolf RD, Westchester, IL, 60154. Phone: (708) 562-5430. Providers update this record themselves, so call before visiting.
How can I verify Damian Olejarski, DO's license?
NPPES lists Illinois license number 036-166866, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Damian Olejarski, DO prescribe under Medicare Part D?
In 2024, Damian Olejarski, DO had 283 Medicare Part D claims for 125 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.