Oana Nisipeanu, M.D.
NPI 1558316117ActiveIndividual· Family Medicine· Gurnee, IL
Family Medicine (M.D.) with Advocate Health and Hospitals Corporation and 1 other group, practicing in Gurnee, Illinois. Their prescriptions cost Medicare Part D more than their services did: $819,968 for 7,806 claims, against $85,824 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2025, $191.57 in all, mostly food and beverage. Lists Advocate Condell Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1558316117 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 23, 2006 |
| Last updated in NPPES | May 25, 2023 |
| Certified by provider | May 25, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 036-107936 | IL |
| Emergency Medicine | 207P00000X | 036-107936 | IL |
| Family Medicine, Adult Medicine | 207QA0505X | 036107936 | 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 - Family Practice (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 376 |
|---|---|
| Services billed | 1,301 across 34 procedure codes |
| Paid by Medicare | $85,824 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,806 · 17,809 30-day fills |
|---|---|
| Patients | 717 |
| Total drug cost | $819,968 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
- Lake County Acute Care LLPGurnee, IL · 18 clinicians
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Advocate Good Shepherd HospitalBarrington, IL
- Vista Medical Center EastWaukegan, IL
Other facilities
- Advocate Home Health Care ServHome health agency · Oakbrook, IL
Industry payments (Open Payments)
- 2025$191.57 · 3 payments from 3 companies
- 2024$145.40 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $91.55 | 1 |
| Exact Sciences Corporation | $83.43 | 1 |
| Inspire Medical Systems, Inc. | $16.59 | 1 |
What the 2025 payments were for
- Food and Beverage$191.57 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 32 family medicine physicians in Gurnee · All family medicine physicians in Illinois