ROBERT S CALLAHAN
Allopathic & Osteopathic Physicians|Family Medicine NEWARK, DE NPI 1962491779
Browse related groups: Allopathic & Osteopathic Physicians|Family Medicine DE ABBVIE INC. All categories
General Payments — all program years on this page
$7,125.49
- Category: General Payments
- Program years: PY2018–2024
- Record count: 430
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $1,452.87 across 77 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 | $1,452.87 | 77 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| ABBVIE INC. | $273.28 | 17 |
| Acerta Pharma LLC | $223.75 | 11 |
| Lundbeck LLC | $150.99 | 6 |
| Gilead Sciences, Inc. | $106.74 | 4 |
| Lilly USA, LLC | $100.57 | 6 |
| GlaxoSmithKline, LLC. | $89.02 | 5 |
| Merck Sharp & Dohme Corporation | $65.69 | 4 |
| Astellas Pharma US Inc | $60.08 | 4 |
| Novo Nordisk AS | $52.09 | 3 |
| TACTILE SYSTEMS TECHNOLOGY INC | $49.30 | 1 |
| Abbott Laboratories | $44.24 | 2 |
| Exact Sciences Corporation | $31.89 | 2 |
| Teva Pharmaceuticals USA, Inc. | $31.27 | 2 |
| Amgen Inc. | $27.66 | 2 |
| Almatica Pharma Inc. | $24.90 | 1 |
| Sumitomo Pharma America, Inc. | $23.05 | 1 |
| Otsuka America Pharmaceutical, Inc. | $20.88 | 1 |
| IDORSIA PHARMACEUTICALS US INC | $18.74 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $15.75 | 1 |
| Vanda Pharmaceuticals Inc. | $15.36 | 1 |
| PFIZER INC. | $14.29 | 1 |
| Seqirus USA Inc | $13.33 | 1 |
By program year
Records — PY2024 (77)
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
One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.
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.