MARY MELISSA DARNELL
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner RUSSELLVILLE, AR NPI 1497964571
Browse related groups: Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner AR Biogen, Inc. All categories
General Payments — all program years on this page
$864.63
- Category: General Payments
- Program years: PY2021–2024
- Record count: 35
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $179.16 across 8 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is calculated
- The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
- General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
- Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
- Methodology & Data — sourcing, labeling, and limitations.
By nature of payment
Latest program year (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $179.16 | 8 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| Biogen, Inc. | $44.92 | 2 |
| Ethicon US, LLC | $43.97 | 1 |
| Astellas Pharma US Inc | $38.11 | 2 |
| Exeltis, USA Inc. | $30.95 | 2 |
| Organon LLC | $21.21 | 1 |
By program year
Records — PY2024 (8)
| Record ID | Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Source |
|---|---|---|---|---|---|---|---|
| 1077622916 | Ethicon US, LLC | $43.97 | 02/27/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1104827214 | Biogen, Inc. | $23.71 | 07/16/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1104877934 | Biogen, Inc. | $21.21 | 06/18/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1136190642 | Organon Llc | $21.21 | 12/18/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1139462624 | Astellas Pharma US Inc | $13.37 | 08/07/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1139550037 | Astellas Pharma US Inc | $24.74 | 10/31/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1150010981 | Exeltis, USA Inc. | $13.43 | 02/06/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1150010983 | Exeltis, USA Inc. | $17.52 | 10/08/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- Generated from: OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
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Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.