Scott Chadderdon, MD
Cardiovascular Disease · Portland, ORNPI 1811068752
Payments from drug & device makers
Across 671 payments — averaging $2409.32 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Edwards Lifesciences$1.4M
- Medtronic$163K
- GE HealthCare$52K
- Philips North America LLC$13K
- Biosense Webster, Inc.$13K
- Siemens Medical Solutions USA, Inc.$9K
- plus $1K from 2 others
Across 12 payments — averaging $4207.29 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$50K
What the payments were for
- Consulting fees$161,17057%
- Speaking & faculty fees$28,62010%
- Grants$660%
- Travel & lodging$70,16325%
- Food & beverage$21,6668%
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 |
|---|---|---|
| Edwards Lifesciences | 258 | $1,364,059 |
| Medtronic(2 entities) | 342 | $163,232 |
| GE HealthCare | 10 | $51,889 |
| Philips North America LLC | 13 | $13,406 |
| Biosense Webster, Inc. | 14 | $13,392 |
| Siemens Medical Solutions USA, Inc. | 22 | $9,333 |
| Abbott | 10 | $1,074 |
| Boston Scientific | 2 | $268 |
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.
- COREVALVE EVOLUT R$37,342
- PASCAL$26,782
- (9520) IGT Devices Undivided$12,399
- CoreValve Evolut$9,039
- EVOQUE$6,917
- Carto 3$6,651
- ACUSON SC2000 Diagnostic Ultrasound System$6,472
- SAPIEN 3 Ultra RESILIA$1,459
- APOLLOTM$989
- (6554) Peripheral Vascular Undivided$832
- Thermocool SF$815
- ACUSON Origin Diagnostic Ultrasound System$589
- Edwards SAPIEN 3 Transcatheter Heart Valve$528
- 3F$293
- Apollo$225
- VersaCross Access Solution$202
How this compares
$1,616,652 in reported general payments places this provider in the 95th percentile of 198 cardiovascular disease providers in Oregon.
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 |
|---|---|---|
| JardianceEmpagliflozin | 36 | $52,406 |
| EliquisApixaban | 42 | $52,215 |
| FarxigaDapagliflozin Propanediol | 14 | $11,544 |
| Potassium Chloride | 119 | $2,044 |
| Torsemide | 52 | $1,685 |
| Rosuvastatin Calcium | 71 | $1,537 |
| Metoprolol Succinate | 89 | $1,281 |
| Atorvastatin Calcium | 118 | $1,092 |
| Losartan Potassium | 86 | $924 |
| Carvedilol | 80 | $886 |
| Lisinopril | 57 | $745 |
| Pantoprazole Sodium | 21 | $510 |
| Isosorbide Mononitrate ErIsosorbide Mononitrate | 15 | $369 |
| Furosemide | 70 | $344 |
| Spironolactone | 43 | $337 |
Paid to pharmacies, not to this prescriber.
Other cardiovascular disease in Portland
- Firas ZahrPortland$7.7M
- Ahmad MasriPortland$2.6M
- Tyler GluckmanPortland$755K
- Stephen HeitnerPortland$434K
- Maros FerencikPortland$239K
- Abigail KhanPortland$149K
- Steven MansoorPortland$130K
- Samuel CamachoPortland$75K
- Jeffrey MarbachPortland$70K
- Peter JesselPortland$65K
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.