Roger Gammon
Interventional Cardiology · Austin, TXNPI 1366435810
Payments from drug & device makers
What this record shows
This record is dominated by ownership interests: $7,865 of the $9,046 with a category attached, or 86.9%. Idev Technologies, Inc. accounts for 86.9% of it on its own, with 12 other manufacturers making up the rest. Reporting peaked in 2020 at $8,035 and has fallen 96.6% since, to $273 in 2021. That places this record below the midpoint for interventional cardiology clinicians in TX, where the typical reported total is $9,094.
Across 47 payments — averaging $192.46 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Idev Technologies, Inc.$8K
- Biotronik Inc.$308
- Actelion Pharmaceuticals US, Inc.$308
- Abbott$118
- Boston Scientific$113
- Johnson & Johnson$83
- plus $250 from 7 others
Across 456 payments — averaging $462.73 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.
- Biotronik Inc.$69K
- Surmodics, Inc.$58K
- Shockwave Medical, Inc$30K
- Boston Scientific$24K
- Bard Peripheral Vascular, Inc.$20K
- Merck$10K
- plus $700 from 1 others
What the payments were for
- Food & beverage$1,18113%
- Ownership interest$7,86587%
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 |
|---|---|---|
| Idev Technologies, Inc. | 1 | $7,865 |
| Biotronik Inc. | 6 | $308 |
| Actelion Pharmaceuticals US, Inc. | 17 | $308 |
| Abbott | 1 | $118 |
| Boston Scientific | 3 | $113 |
| Johnson & Johnson | 6 | $83 |
| Shockwave Medical, Inc | 3 | $64 |
| Abiomed | 3 | $60 |
| Novartis | 3 | $59 |
| Medtronic | 1 | $24 |
| Biocompatibles, Inc. | 1 | $16 |
| Chiesi USA, Inc. | 1 | $15 |
| Pfizer | 1 | $11 |
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
$9,046 in reported general payments places this provider in the 45th percentile of 686 interventional cardiology providers in Texas.
Other interventional cardiology in Austin
- Francis ZidarAustin$433K
- Juhana KarhaAustin$147K
- Juan GranadaHouston$4.1M
- Vamsi KrishnaKyle$2M
- Jeffrey CarrTyler$1.9M
- John IsaacHouston$1.8M
- Robert ChiltonSan Antonio$1.3M
- Sameh SayfoPlano$1M
- Srinivasa PotluriPlano$781K
- Karim Al-AziziPlano$734K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.