Paul Ridker, MD
Cardiovascular Disease · Boston, MANPI 1063478261
Payments from drug & device makers
Across 275 payments — averaging $58,749 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Kowa Research Institute, Inc.$13.6M
- Amarin Pharma, Inc.$1.7M
- Pfizer$299K
- Esperion Therapeutics, Inc.$106K
- Agepha Pharma FZ LLC$83K
- CSL Behring$60K
- plus $327K from 17 others
Across 36 payments — averaging $2810.54 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- CSL Behring$62K
- Novo Nordisk AS$37K
- KOWA Company, LTD.$2K
- F. Hoffmann-la Roche AG$102
What the payments were for
- Consulting fees$471,03282%
- Speaking & faculty fees$29,8315%
- Travel & lodging$66,90912%
- Food & beverage$4,4571%
- Education$1040%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Kowa Research Institute, Inc. | 11 | $13,605,214 |
| Amarin Pharma, Inc. | 18 | $1,675,945 |
| Pfizer | 20 | $298,999 |
| Esperion Therapeutics, Inc. | 6 | $105,647 |
| Agepha Pharma FZ LLC | 26 | $83,456 |
| CSL Behring | 36 | $60,093 |
| AstraZeneca | 33 | $54,769 |
| Novo Nordisk AS | 14 | $50,423 |
| Amgen(2 entities) | 16 | $46,188 |
| Eli Lilly | 48 | $41,412 |
| KOWA Company, LTD. | 11 | $19,149 |
| Janssen Research & Development, LLC | 4 | $16,733 |
| Astrazeneca UK Limited | 4 | $15,414 |
| GSK | 2 | $13,839 |
| Ardelyx, Inc. | 1 | $13,600 |
| Alnylam Pharmaceuticals Inc. | 2 | $13,118 |
| Merck | 6 | $11,223 |
| Sanofi Pasteur Inc. | 3 | $9,474 |
| Ipsen Bioscience Inc. | 1 | $9,405 |
| Heartflow, Inc. | 2 | $6,250 |
| Novo Nordisk | 3 | $3,392 |
| Boehringer Ingelheim International GmbH | 1 | $1,500 |
| Astrazeneca AB | 7 | $662 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$16,155,903 in reported general payments places this provider in the 95th percentile of 750 cardiovascular disease providers in Massachusetts.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Other cardiovascular disease in Boston
- Marc SabatineBoston$31.2M
- Stephen WiviottBoston$29.2M
- David MorrowBoston$19M
- Scott SolomonBoston$16.2M
- Mohit JainBoston$13M
- Calum MacraeBoston$11.4M
- Benjamin SciricaBoston$11.3M
- Robert GiuglianoBoston$10.5M
- Erin BohulaBoston$10M
- Michelle OdonoghueBoston$8.9M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.