Marissa Buchanan, NP
NPI 1073212833ActiveIndividual· Nurse Practitioner, Family· Meridian, MS
Nurse Practitioner, Family (NP) with Cardiovascular Institute of the South, LLC, practicing in Meridian, Mississippi. In 2024 Medicare paid $28,762 for 218 patients, and Part D covered 457 of their prescriptions, 87% of them generic. Zoll Services LLC (A/K/A Zoll Lifecor Corp) was the largest of 7 companies reporting payments in 2025, $580.74 in all, mostly food and beverage. Lists Anderson Regional Medical Center as a hospital affiliation.
Overview
| NPI | 1073212833 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Mar 1, 2023 |
| Last updated in NPPES | Apr 27, 2023 |
| Certified by provider | Apr 27, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 905834 | MS |
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 (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 218 |
|---|---|
| Services billed | 401 across 14 procedure codes |
| Paid by Medicare | $28,762 |
Part D prescriptions in 2024
| Prescriptions (claims) | 457 · 637 30-day fills |
|---|---|
| Patients | 105 |
| Total drug cost | $37,033 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Cardiovascular Institute of the South, LLCLafayette, LA · 146 clinicians
Hospital affiliation
- Anderson Regional Medical CenterMeridian, MS
Industry payments (Open Payments)
- 2025$580.74 · 25 payments from 7 companies
- 2024$1,092 · 50 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $172.95 | 9 |
| Merck Sharp & Dohme LLC | $154.34 | 6 |
| E.R. Squibb & Sons, L.L.C. | $87.62 | 5 |
| Medtronic, Inc. | $75.44 | 1 |
| Pfizer Inc. | $45.20 | 2 |
What the 2025 payments were for
- Food and Beverage$580.74 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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