Maria Marrero, NP
NPI 1396122784ActiveIndividual· Nurse Practitioner, Family· Dyer, IN
Nurse Practitioner, Family (NP) with Northwest Cancer Centers PC, practicing in Dyer, Indiana. Their prescriptions cost Medicare Part D more than their services did: $2,411,578 for 1,523 claims, against $85,934 paid for services in 2024. Abbvie Inc. was the largest of 32 companies reporting payments in 2025, $2,941 in all, mostly food and beverage. Lists Community Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1396122784 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | May 5, 2015 |
| Last updated in NPPES | Mar 22, 2021 |
| Certified by provider | Mar 22, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 71005463A | IN |
| Registered Nurse | 163W00000X | 28162112 | IN |
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 (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 153 |
|---|---|
| Services billed | 2,675 across 51 procedure codes |
| Paid by Medicare | $85,934 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,523 · 2,298 30-day fills |
|---|---|
| Patients | 286 |
| Total drug cost | $2,411,578 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Northwest Cancer Centers PCDyer, IN · 27 clinicians
Hospital affiliations
- Community HospitalMunster, IN
- Franciscan Health DyerDyer, IN
- Franciscan Health MunsterMunster, IN
- St Catherine Hospital IncEast Chicago, IN
- St Mary Medical Center IncHobart, IN
Other facilities
- Powers Health Rehabilitation CenterInpatient rehabilitation facility · Crown Point, IN
Industry payments (Open Payments)
- 2025$2,941 · 127 payments from 32 companies
- 2024$4,958 · 120 payments from 31 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $364.98 | 13 |
| Astrazeneca Pharmaceuticals LP | $306.54 | 18 |
| E.R. Squibb & Sons, L.L.C. | $206.97 | 10 |
| Celgene Corporation | $151.57 | 6 |
| Merck Sharp & Dohme LLC | $151.18 | 7 |
What the 2025 payments were for
- Food and Beverage$2,858 · 126 payments
- Education$83.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 37 family nurse practitioners in Dyer · All family nurse practitioners in Indiana