Srikanth Sundaram, MD
Clinical Cardiac Electrophysiology · Littleton, CONPI 1780610543
Payments from drug & device makers
Across 1,173 payments — averaging $1771.61 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$1.8M
- Boston Scientific$202K
- Adagio Medical, Inc.$30K
- Medtronic$22K
- Altathera Pharmaceuticals LLC$2K
- Impulse Dynamics (USA) Inc.$1K
- plus $3K from 23 others
What the payments were for
- Consulting fees$332,67968%
- Speaking & faculty fees$60,22512%
- Travel & lodging$74,76315%
- Food & beverage$25,1675%
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 |
|---|---|---|
| Abbott | 845 | $1,818,420 |
| Boston Scientific | 174 | $201,555 |
| Adagio Medical, Inc. | 4 | $29,532 |
| Medtronic(2 entities) | 51 | $22,389 |
| Altathera Pharmaceuticals LLC | 2 | $1,997 |
| Impulse Dynamics (USA) Inc. | 14 | $1,099 |
| Cardiofocus, Inc. | 4 | $993 |
| Omega Medical Imaging, LLC | 1 | $420 |
| Pfizer | 15 | $250 |
| E.r. Squibb & Sons, L.L.C. | 14 | $249 |
| Cardiva Medical, Inc. | 5 | $214 |
| Amgen | 13 | $203 |
| Biotronik Inc. | 3 | $196 |
| Biosense Webster, Inc. | 1 | $94 |
| Novartis | 3 | $69 |
| Itamar Medical Inc | 1 | $65 |
| Boehringer Ingelheim | 5 | $64 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 3 | $46 |
| Sanofi-aventis U.S. LLC | 3 | $42 |
| AstraZeneca | 2 | $36 |
| Johnson & Johnson | 2 | $26 |
| Cvrx, Inc. | 1 | $21 |
| Gilead | 1 | $20 |
| Scpharmaceuticals Inc. | 1 | $19 |
| Astellas Pharma US Inc | 1 | $16 |
| Lexicon Pharmaceuticals, Inc. | 1 | $15 |
| Atricure, Inc. | 1 | $15 |
| Lilly USA, LLC | 1 | $14 |
| Heartflow, Inc. | 1 | $14 |
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.
- ENSITE$124,438
- ENSITE PRECISION$81,815
- TACTICATH ABLATION CATHETER, SENSOR ENABLED$46,571
- EnSite Precision Cardiac Mapping System$43,032
- Ensite Cardiac Mapping System$38,731
- THORATEC HEARTMATE 3 LVAS IMPLANT KIT$27,313
- FLEXABILITY$18,604
- Farapulse$13,123
- Arctic Front$11,700
- ViewMate Intracardiac Echo$9,867
- ViewFlex Xtra ICE Catheter$6,750
- ACCENT$5,358
- Nanostim Leadleas Pacemaker$3,515
- Advisor Catheter$3,000
- AVEIR$2,467
- NA$2,318
- ADVISOR$2,272
- ALLURE$2,200
- Perclose ProStyle$2,000
- Sotalol Hydrochloride$1,997
How this compares
$2,078,094 in reported general payments places this provider in the 95th percentile of 66 clinical cardiac electrophysiology providers in Colorado.
See all clinical cardiac electrophysiology providers in Colorado →
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 |
|---|---|---|
| EliquisApixaban | 666 | $823,535 |
| XareltoRivaroxaban | 185 | $244,968 |
| EntrestoSacubitril/Valsartan | 32 | $40,701 |
| JardianceEmpagliflozin | 25 | $22,875 |
| Repatha SureclickEvolocumab | 21 | $16,504 |
| JanuviaSitagliptin Phosphate | 12 | $7,286 |
| Dofetilide | 31 | $7,164 |
| Metoprolol Succinate | 499 | $6,762 |
| Flecainide Acetate | 91 | $4,815 |
| SotalolSotalol Hcl | 115 | $2,629 |
| Sucralfate | 34 | $2,121 |
| Metoprolol Tartrate | 310 | $1,833 |
| Diltiazem 24hr Er (Cd)Diltiazem Hcl | 81 | $1,801 |
| Omeprazole | 78 | $1,543 |
| Rosuvastatin Calcium | 116 | $1,500 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| PfizerEliquis | $250 | $823,535666 claims |
| Johnson & JohnsonXarelto | $26 | $244,968185 claims |
| NovartisEntresto | $69 | $40,70132 claims |
| Boehringer IngelheimJardiance | $64 | $22,87525 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 66 clinical cardiac electrophysiology providers in Colorado.
Other clinical cardiac electrophysiology in Littleton
- Henry ZhengLittleton$58K
- William ChoeLittleton$20K
- Roger DamleLittleton$4K
- Jamie JordanLittleton$3K
- Jehu MathewLittleton$2K
- Ganesh VenkataramanLakewood$842K
- Bradley MikaelianColorado Springs$617K
- Wendy TzouAurora$538K
- Christopher PorterfieldAurora$533K
- Benjamin SteinbergDenver$383K
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.