Carolyn Marie Mayer, APRN, CNP
NPI 1073023263ActiveIndividual· Nurse Practitioner· Orland Park, IL
Nurse Practitioner (APRN, CNP) in Orland Park, Illinois, trained at University of Cincinnati College of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $842,202 for 936 claims, against $9,519 paid for services in 2024. Exelixis Inc. was the largest of 3 companies reporting payments in 2025, $168.95 in all, mostly education.
Overview
| NPI | 1073023263 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN, CNP |
| Sole proprietor | No |
| NPI issued | Oct 3, 2017 |
| Last updated in NPPES | Sep 29, 2026 |
| Certified by provider | Mar 14, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 209.016666 | 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 | 203 |
|---|---|
| Services billed | 558 across 11 procedure codes |
| Paid by Medicare | $9,519 |
Part D prescriptions in 2024
| Prescriptions (claims) | 936 · 1,239 30-day fills |
|---|---|
| Patients | 277 |
| Total drug cost | $842,202 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Cincinnati College of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Nurse Practitioner |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliations
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Memorial HospitalChicago, IL
- Palos Community HospitalPalos Heights, IL
Industry payments (Open Payments)
- 2025$168.95 · 5 payments from 3 companies
- 2024$35.71 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exelixis Inc. | $99.99 | 1 |
| Merck Sharp & Dohme LLC | $53.53 | 3 |
| Abbvie Inc. | $15.43 | 1 |
What the 2025 payments were for
- Education$99.99 · 1 payment
- Food and Beverage$68.96 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 47 nurse practitioners in Orland Park · All nurse practitioners in Illinois