Mary Ellen Porter, NP
NPI 1356489272ActiveIndividual· Nurse Practitioner· Flowood, MS
Nurse Practitioner (NP) with River Oaks Management Company LLC, practicing in Flowood, Mississippi. Their prescriptions cost Medicare Part D more than their services did: $269,573 for 3,193 claims, against $32,399 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $1,225 in all, mostly food and beverage. Lists Merit Health Madison and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1356489272 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Feb 2, 2007 |
| Last updated in NPPES | Sep 11, 2020 |
| Certified by provider | Sep 11, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | AP04559 | LA |
| Registered Nurse | 163W00000X | RN098282 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 155 |
|---|---|
| Services billed | 987 across 37 procedure codes |
| Paid by Medicare | $32,399 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,193 · 6,291 30-day fills |
|---|---|
| Patients | 279 |
| Total drug cost | $269,573 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- River Oaks Management Company LLCBrandon, MS · 35 clinicians
Hospital affiliations
- Merit Health MadisonCanton, MS
- Merit Health River OaksFlowood, MS
- Merit Health Women's HospitalFlowood, MS
- St Dominic-Jackson Memorial HospitalJackson, MS
Other facilities
- Sta Home Health Agency of Jackson, Inc. DBA Accentcare Home Health of JacksonHome health agency · Clinton, MS
Industry payments (Open Payments)
- 2025$1,225 · 75 payments from 17 companies
- 2024$911.84 · 54 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $215.35 | 20 |
| Pfizer Inc. | $156.05 | 10 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $146.66 | 9 |
| Astellas Pharma US Inc | $132.87 | 6 |
| Novo Nordisk Inc | $78.52 | 4 |
What the 2025 payments were for
- Food and Beverage$1,225 · 75 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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