Marie Ann Korallus, RN, MSN, APRN,FNP-C
NPI 1669927893ActiveIndividual· Nurse Practitioner, Family· Countryside, IL
Nurse Practitioner, Family (RN, MSN, APRN,FNP-C) with Integrity Medical and Wounds Group Il Rllp and 1 other group, practicing in Countryside, Illinois. Their prescriptions cost Medicare Part D more than their services did: $48,955 for 649 claims, against $11,430 paid for services in 2024. Novo Nordisk Inc was the largest of 4 companies reporting payments in 2025, $75.65 in all, mostly food and beverage. Lists Northwestern Medicine Central Dupage Hospital as a hospital affiliation.
Overview
| NPI | 1669927893 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN, MSN, APRN,FNP-C |
| Sole proprietor | No |
| NPI issued | Aug 17, 2016 |
| Last updated in NPPES | Oct 6, 2022 |
| Certified by provider | Oct 5, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 209.018644 | 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 - Nurse Practitioner (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 69 |
|---|---|
| Services billed | 272 across 25 procedure codes |
| Paid by Medicare | $11,430 |
Part D prescriptions in 2024
| Prescriptions (claims) | 649 · 1,488 30-day fills |
|---|---|
| Patients | 105 |
| Total drug cost | $48,955 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Integrity Medical and Wounds Group Il RllpChicago, IL · 4 clinicians
- R and W Medical LLCChicago, IL · 4 clinicians
Hospital affiliation
- Northwestern Medicine Central Dupage HospitalWinfield, IL
Industry payments (Open Payments)
- 2025$75.65 · 4 payments from 4 companies
- 2024$494.83 · 10 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $25.88 | 1 |
| Lilly USA, LLC | $18.48 | 1 |
| Exact Sciences Corporation | $16.04 | 1 |
| Abbvie Inc. | $15.25 | 1 |
What the 2025 payments were for
- Food and Beverage$75.65 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Nurse Practitioner, Family providers in Countryside
- 1972611895
- 1780494724
- 1811245178
- 1285818070
- 1538010186