Oleg V. Korolev, M.D.
NPI 1750383535ActiveIndividual· Anesthesiology· Oak Park, IL
Anesthesiology (M.D.) with Clinical Colleagues Inc, practicing in Oak Park, Illinois. Mostly services rather than prescriptions: Medicare paid $3,809 for 40 patients in 2024, with only 12 Part D claims. Lists Parkview Whitley Hospital as a hospital affiliation.
Overview
| NPI | 1750383535 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 11, 2005 |
| Last updated in NPPES | Dec 3, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 036103607 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (IL); Practitioner - Anesthesiology (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 40 |
|---|---|
| Services billed | 41 across 13 procedure codes |
| Paid by Medicare | $3,809 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12 · 28 30-day fills |
|---|---|
| Total drug cost | $141.12 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical group
- Clinical Colleagues IncLoganport, IN · 164 clinicians
Hospital affiliation
- Parkview Whitley HospitalColumbia City, IN
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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