Shu Chang, MD
Clinical Cardiac Electrophysiology · Colorado Springs, CONPI 1295077964
Payments from drug & device makers
What this record shows
The money is spread across several categories — grants (49.1%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. 28 manufacturers reported payments, led by Medtronic at 48.0% of the total.
Across 369 payments — averaging $223.50 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$40K
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$16K
- Abbott$13K
- Biosense Webster, Inc.$6K
- Boston Scientific$5K
- Pfizer$388
- plus $2K from 22 others
Across 12 payments — averaging $2444.88 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.
- Medtronic$29K
What the payments were for
- Consulting fees$3,3754%
- Speaking & faculty fees$15,25018%
- Grants$40,50049%
- Travel & lodging$8,28210%
- Food & beverage$14,46018%
- Education$6061%
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 |
|---|---|---|
| Medtronic(2 entities) | 27 | $39,576 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 32 | $16,466 |
| Abbott | 116 | $12,775 |
| Biosense Webster, Inc. | 36 | $5,820 |
| Boston Scientific | 46 | $5,235 |
| Pfizer | 20 | $388 |
| Johnson & Johnson | 17 | $266 |
| Amgen | 14 | $265 |
| Novartis | 12 | $260 |
| Astellas Pharma US Inc | 2 | $200 |
| Edwards Lifesciences | 3 | $191 |
| Philips North America LLC | 5 | $180 |
| Sanofi-aventis U.S. LLC | 7 | $162 |
| AstraZeneca | 5 | $84 |
| Impulse Dynamics (USA) Inc. | 2 | $84 |
| Merck | 5 | $72 |
| GE HealthCare | 2 | $65 |
| Alnylam Pharmaceuticals Inc. | 3 | $63 |
| Boehringer Ingelheim | 4 | $56 |
| Inspire Medical Systems, Inc. | 1 | $54 |
| Kiniksa Pharmaceuticals, Ltd. | 2 | $46 |
| E.r. Squibb & Sons, L.L.C. | 2 | $45 |
| Kestra Medical Technology Services, Inc. | 1 | $24 |
| Ossur Americas, Inc. | 1 | $21 |
| Bayer | 1 | $20 |
| Sanofi | 1 | $20 |
| Daiichi Sankyo Inc. | 1 | $17 |
| Cardiva Medical, Inc. | 1 | $17 |
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.
- LifeVest$15,852
- TactiCath SE$3,000
- AVEIR$2,614
- Farapulse$2,061
- ENSITE PRECISION$1,909
- ENSITE$748
- Carto 3$672
- HeartMate 3 Left Ventricular Dev$406
- EnSite Precision Cardiac Mapping System$382
- Ensite Cardiac Mapping System$357
- EMBLEM MRI S-ICD$245
- INSPIRIS RESILIA aortic valve$151
- Fortify Assura, Ellipse ICD$147
- COBALT DR MRI SURESCAN$146
- Rhythmia Mapping System$139
- GENERAL EP$134
- ASSURITY$130
- SensiTherm (ICE)$124
- Assurity Pacemaker$121
- ONYX FRONTIER$115
How this compares
$82,473 in reported general payments places this provider in the 85th 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 | 263 | $331,500 |
| XareltoRivaroxaban | 31 | $48,056 |
| Flecainide Acetate | 126 | $6,416 |
| SotalolSotalol Hcl | 130 | $2,891 |
| Metoprolol Succinate | 181 | $2,403 |
| Dofetilide | 11 | $1,942 |
| Sucralfate | 44 | $1,810 |
| Amiodarone Hcl | 46 | $1,098 |
| Omeprazole | 35 | $715 |
| Diltiazem 24hr Er (Cd)Diltiazem Hcl | 19 | $626 |
| Metoprolol Tartrate | 41 | $228 |
| Carvedilol | 25 | $188 |
| Amlodipine Besylate | 23 | $113 |
| Furosemide | 14 | $53 |
| Losartan Potassium | 11 | $28 |
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 | $388 | $331,500263 claims |
| Johnson & JohnsonXarelto | $266 | $48,05631 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 85th percentile of 66 clinical cardiac electrophysiology providers in Colorado.
Other clinical cardiac electrophysiology in Colorado Springs
- Bradley MikaelianColorado Springs$364K
- Sunil NathColorado Springs$13K
- Jaime GonzalezColorado Springs$11K
- Derrick FanslerColorado Springs$3K
- Christopher ColeColorado Springs$3K
- Srikanth SundaramLittleton$493K
- Wendy TzouAurora$350K
- Christopher PorterfieldAurora$340K
- Lohit GargAurora$147K
- Ethan EllisFort Collins$144K
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.