Oleg V. Korolev, M.D.
Anesthesiology Physician · Oak Park, IL
Oleg V. Korolev, M.D. is an anesthesiology physician with a practice address in Oak Park, Illinois, and NPI 1750383535, issued on Aug 11, 2005. Check the license (Illinois 036103607, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Oleg V. Korolev
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 036103607 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3 Erie CT, Oak Park, IL 60302
- Phone
- (708) 524-9130
- Enumerated
- Aug 11, 2005
- Record last updated
- Dec 3, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181109002828); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,575 in Illinois → Look up another NPI →
Also registered at 3 Erie CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Acevedo, MS CCC-SLP/LSpeech-Language Pathologist1164680419
- Joshua Ajjarapu, M.D.Hospitalist Physician1841501699
- Mark Arnett, M.D.Diagnostic Radiology Physician1538114616
- Heidi Asbury, M.D.Anatomic Pathology & Clinical Pathology Physician1043247372
- Avram Avramov, M.D.Anesthesiology Physician1194769216
- Gina Biasiello, D.P.TPhysical Therapist1124490610
Verify Oleg V. Korolev 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 036103607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average anesthesiology physician in 2024
12 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Bills Medicare through one group practice
- Clinical Colleagues IncColumbia City, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Oleg V. Korolev among 2,575 anesthesiology physician records in Illinois
Oleg V. Korolev, M.D. is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1982 · median 2006 among the 1,608 with a school on file
- Record last updated2014 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Illinois
There are 2,575 anesthesiology physician records in Illinois.
All 2,575 in Illinois → Every provider in Oak Park → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Avram Avramov, M.D.Oak Park, IL 603021194769216
- Silas Harrington, D.O.Oak Park, IL 603021043434665
- Baroukh Levi, M.D.Oak Park, IL 603021942236740
- Tim Luk, D.O.Oak Park, IL 603021356343321
- David Rubalsky, M.D.Oak Park, IL 603021326061615
- George Theotikos, D.O.Oak Park, IL 603021245282219
- Mathew Walsh, MDOak Park, IL 603021891705281
- Joyal Degani, MDOak Park, IL 603041225087489
Common questions
What is Oleg V. Korolev, M.D.'s NPI number?
Oleg V. Korolev, M.D.'s National Provider Identifier (NPI) is 1750383535, issued on Aug 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Oleg V. Korolev, M.D. located?
The NPPES record lists a practice address at 3 Erie CT, Oak Park, IL, 60302. Phone: (708) 524-9130. Providers update this record themselves, so call before visiting.
How can I verify Oleg V. Korolev, M.D.'s license?
NPPES lists Illinois license number 036103607, 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 Oleg V. Korolev, M.D. prescribe under Medicare Part D?
In 2024, Oleg V. Korolev, M.D. had 12 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.