Ray Chihara, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Houston, TXNPI 1740438928
Payments from drug & device makers
Across 97 payments — averaging $160.52 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$11K
- Atricure, Inc.$1K
- Veran Medical Technologies, Inc.$863
- Bolton Medical Inc$487
- Medtronic$377
- Abbott$361
- plus $1K from 11 others
What the payments were for
- Travel & lodging$1,1527%
- Food & beverage$6,91844%
- Education$7,50048%
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 | 24 | $10,800 |
| Atricure, Inc. | 18 | $1,363 |
| Veran Medical Technologies, Inc. | 16 | $863 |
| Bolton Medical Inc | 7 | $487 |
| Medtronic | 5 | $377 |
| Abbott | 8 | $361 |
| Johnson & Johnson(2 entities) | 4 | $316 |
| Paragonix Technologies, Inc. | 1 | $188 |
| Baxter Healthcare | 2 | $173 |
| Teleflex LLC | 1 | $166 |
| Davol Inc. | 2 | $157 |
| Kls-martin L.p. | 2 | $124 |
| Olympus America Inc. | 2 | $78 |
| Zimmer Biomet | 1 | $43 |
| Lemaitre Vascular, Inc. | 1 | $30 |
| TELA Bio, Inc. | 2 | $29 |
| United Therapeutics Corporation | 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.
- Da Vinci Surgical System$4,417
- DAVINCI XI$3,000
- ION$3,000
- ATRICURE CRYOICE CRYOSPHERE CRYOABLATION SYSTEM$774
- Spin$593
- Relay Grafts$335
- EndoFlip$248
- THORATEC HEARTMATE 3 LVAS IMPLANT KIT$221
- SherpaPak$188
- LIVERguard$188
- LUNGguard$188
- BaroGuard$188
- PancreasPak$188
- ATRICLIP LAA EXCLUSION SYSTEM$178
- QuikClot$166
- ATRICURE CRYOICE CRYOABLATION SYSTEM (CRYO2)$158
- MATRIXCOMBO$150
- Progel Applicator Spray Tips$140
- PREVELEAK$124
- ECHELON FLEX CST System$122
How this compares
$15,570 in reported general payments places this provider in the 65th percentile of 424 thoracic surgery (cardiothoracic vascular surgery) providers in Texas.
See all thoracic surgery (cardiothoracic vascular surgery) providers in Texas →
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 |
|---|---|---|
| Oxycodone Hcl | 13 | $49 |
| Tramadol Hcl | 15 | $25 |
Paid to pharmacies, not to this prescriber.
Other thoracic surgery (cardiothoracic vascular surgery) in Houston
- Michael ReardonHouston$2.7M
- Robert RipleyHouston$817K
- Danny RamzyHouston$620K
- Marc MoonHouston$476K
- Wayne HofstetterHouston$469K
- Eric PedenHouston$465K
- Gabriel LoorHouston$410K
- Igor GregoricHouston$359K
- Thomas MacgillivrayHouston$330K
- Min KimHouston$326K
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.