Daniel Walker, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Hartford, CTNPI 1760820682
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (41.6%), travel and lodging and consulting fees — rather than concentrated in one kind of arrangement. 12 manufacturers reported payments, led by Intuitive Surgical at 35.6% of the total. Reporting peaked in 2022 at $2,398 and has fallen 89.5% since, to $252 in 2025. That places this record below the midpoint for thoracic surgery (cardiothoracic vascular surgery) clinicians in CT, where the typical reported total is $4,217.
Across 25 payments — averaging $168.70 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$2K
- Edwards Lifesciences$924
- Johnson & Johnson$676
- Davol Inc.$271
- Medical Device Business Services, Inc.$201
- Surgical Specialties Corporation (US), Inc. (dba Corza Medical)$149
- plus $497 from 6 others
What the payments were for
- Consulting fees$57014%
- Travel & lodging$1,67740%
- Food & beverage$1,75642%
- Education$2015%
- Gifts$140%
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 |
|---|---|---|
| Intuitive Surgical | 9 | $1,501 |
| Edwards Lifesciences | 3 | $924 |
| Johnson & Johnson | 2 | $676 |
| Davol Inc. | 2 | $271 |
| Medical Device Business Services, Inc. | 2 | $201 |
| Surgical Specialties Corporation (US), Inc. (dba Corza Medical) | 1 | $149 |
| Zimmer Biomet | 1 | $137 |
| Incyte Corporation | 1 | $116 |
| Abiomed | 1 | $108 |
| Osteomed LLC | 1 | $97 |
| Mylan Specialty L.p. | 1 | $23 |
| Merit Medical Systems Inc | 1 | $15 |
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
$4,217 in reported general payments places this provider in the 50th percentile of 70 thoracic surgery (cardiothoracic vascular surgery) providers in Connecticut.
See all thoracic surgery (cardiothoracic vascular surgery) providers in Connecticut →
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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Gabapentin | 15 | $69 |
Paid to pharmacies, not to this prescriber.
Other thoracic surgery (cardiothoracic vascular surgery) in Hartford
- Robert GallagherHartford$23K
- Jonathan HammondHartford$9K
- Sheelagh PousatisHartford$9K
- Sabet HashimHartford$8K
- Ayyaz AliHartford$8K
- Jason ZakkoHartford$7K
- Randy StevensHartford$4K
- David YaffeeHartford$4K
- Whitney BurrowsHartford$3K
- Jennifer PerriHartford$2K
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.