KRYSTLE CALLAN
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health WEST ISLIP, NY NPI 1497592299
Browse related groups: Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health NY EISAI INC. All categories
General Payments — all program years on this page
$115.47
- Category: General Payments
- Program years: PY2024
- Record count: 5
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $115.47 across 5 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 | $115.47 | 5 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| EISAI INC. | $36.55 | 2 |
| Merck Sharp & Dohme Corporation | $29.29 | 1 |
| ABBVIE INC. | $27.96 | 1 |
| Alexion Pharmaceuticals, Inc. | $21.67 | 1 |
By program year
| Program year | Amount | Records |
|---|---|---|
| 2024 | $115.47 | 5 |
Records — PY2024 (5)
| Record ID | Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Source |
|---|---|---|---|---|---|---|---|
| 1094039567 | Alexion Pharmaceuticals, Inc. | $21.67 | 11/25/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1106866727 | ABBVIE INC. | $27.96 | 12/12/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1110810562 | Eisai Inc. | $22.49 | 10/17/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1110810564 | Eisai Inc. | $14.06 | 11/21/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1141688334 | Merck Sharp & Dohme LLC | $29.29 | 10/23/2024 | 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.