Kalyan Vunnamadala, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Tulsa, OKNPI 1609991207
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 61 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 13 manufacturers reported payments, led by Johnson & Johnson at 25.3% of the total. 2025 is the largest year on record at $1,482, more than ten times the $137 reported in 2019. That places this record below the midpoint for thoracic surgery (cardiothoracic vascular surgery) clinicians in OK, where the typical reported total is $3,130.
Across 61 payments — averaging $43.68 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$675
- Abiomed$611
- Atricure, Inc.$559
- Medtronic$369
- BD$165
- Smith+Nephew$88
- plus $197 from 7 others
What the payments were for
- Food & beverage$2,664100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Johnson & Johnson(2 entities) | 17 | $675 |
| Abiomed | 7 | $611 |
| Atricure, Inc. | 11 | $559 |
| Medtronic(2 entities) | 14 | $369 |
| BD | 1 | $165 |
| Smith+Nephew | 2 | $88 |
| Surmodics, Inc. | 2 | $47 |
| Artivion, Inc. | 2 | $42 |
| Endologix LLC | 1 | $37 |
| Pfizer | 1 | $19 |
| Teleflex LLC | 1 | $18 |
| Bolton Medical Inc | 1 | $17 |
| Cvrx, Inc. | 1 | $16 |
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
$2,664 in reported general payments places this provider in the 45th percentile of 48 thoracic surgery (cardiothoracic vascular surgery) providers in Oklahoma.
See all thoracic surgery (cardiothoracic vascular surgery) providers in Oklahoma →
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 thoracic surgery (cardiothoracic vascular surgery) in Tulsa
- Matthew CooperTulsa$1.1M
- Kelly NagasawaTulsa$46K
- Ajit TharakanTulsa$30K
- Michael PhillipsTulsa$30K
- Paul KempeTulsa$18K
- John Franco CarabelloTulsa$13K
- Robert GarrettTulsa$13K
- James NeelTulsa$7K
- Shane YamaneTulsa$6K
- Kryston BoyerTulsa$4K
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.