Lori Lynn Marek, APN-CNP
NPI 1124752092ActiveIndividual· Nurse Practitioner· Naperville, IL
Nurse Practitioner (APN-CNP) with Endeavor Health Medical Group and 1 other group, practicing in Naperville, Illinois. Their prescriptions cost Medicare Part D more than their services did: $26,903 for 643 claims, against $7,984 paid for services in 2024. Braeburn Inc. reported $124.73 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1124752092 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APN-CNP |
| Sole proprietor | No |
| NPI issued | Jul 14, 2022 |
| Last updated in NPPES | Apr 10, 2026 |
| Certified by provider | Apr 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 209025985 | IL |
| Nurse Practitioner, Psych/Mental Health | 363LP0808X | 209.025985 | IL |
| Registered Nurse | 163W00000X | 041-282572 | 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 | 44 |
|---|---|
| Services billed | 129 across 4 procedure codes |
| Paid by Medicare | $7,984 |
Part D prescriptions in 2024
| Prescriptions (claims) | 643 · 773 30-day fills |
|---|---|
| Patients | 38 |
| Total drug cost | $26,903 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
- Rockford Psychiatric Medical Services SCChicago, IL · 160 clinicians
Industry payments (Open Payments)
- 2025$124.73 · 1 payment from 1 company
- 2024$125.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Braeburn Inc. | $124.73 | 1 |
What the 2025 payments were for
- Food and Beverage$124.73 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 139 nurse practitioners in Naperville · All nurse practitioners in Illinois