Kenneth Chang, MD
Gastroenterology · Newport Beach, CANPI 1518047604
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (46.3%), royalties or licence payments and speaking fees — rather than concentrated in one kind of arrangement. 22 manufacturers reported payments, led by Wilson Cook Medical Incorporated at 45.4% of the total. Among gastroenterology clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 474 payments — averaging $2717.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Wilson Cook Medical Incorporated$585K
- Endogastric Solutions, Inc$424K
- Merit Medical Systems Inc$70K
- Olympus Corporation Of The Americas$66K
- Olympus America Inc.$39K
- Medtronic$29K
- plus $76K from 16 others
Across 11 payments — averaging $3281.99 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.
- Erbe Elektromedizin GmbH$21K
- Pentax Of America, Inc.$10K
- Cook Research Incorporated$5K
What the payments were for
- Royalty or licence$304,40124%
- Consulting fees$596,67246%
- Speaking & faculty fees$193,28515%
- Travel & lodging$17,7501%
- Food & beverage$13,4601%
- Education$162,67413%
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 |
|---|---|---|
| Wilson Cook Medical Incorporated | 80 | $584,849 |
| Endogastric Solutions, Inc | 116 | $423,544 |
| Merit Medical Systems Inc | 19 | $69,773 |
| Olympus Corporation Of The Americas | 62 | $66,109 |
| Olympus America Inc. | 50 | $39,058 |
| Medtronic | 22 | $28,534 |
| Fujifilm Healthcare Americas Corporation | 15 | $16,454 |
| Cook Incorporated | 7 | $14,547 |
| Johnson & Johnson | 2 | $12,000 |
| Olympus Corporation | 7 | $9,225 |
| Creo Medical Inc. | 5 | $9,001 |
| ERBE USA Inc | 15 | $6,921 |
| Cook Medical LLC | 39 | $2,865 |
| Boston Scientific | 15 | $2,166 |
| Spiration, Inc. | 2 | $1,230 |
| Olympus Medical Systems Corporation | 2 | $769 |
| Covidien LP | 5 | $435 |
| Apollo Endosurgery US Inc | 4 | $282 |
| Conmed Corporation | 4 | $280 |
| Lucid Diagnostics Inc. | 1 | $128 |
| Novo Nordisk | 1 | $39 |
| Pentax Of America, Inc. | 1 | $34 |
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.
- ESOPHYX$483,733
- FUSION$203,429
- Cook Medical Endoscopic Ultrasound$146,247
- Fusion Quattro$107,317
- EchoTip$106,743
- Single Use Aspiration Needle NA-U200H$43,308
- ECHOTIP INSIGHT$30,287
- FUJIFILM$16,223
- Olympus EUS Devices$14,048
- Olympus Biliary Devices$13,857
- Olympus EndoTherapy Accessories$13,538
- STELARA$12,000
- Elation Balloon Dilator$11,625
- EVIS EUS ENDOSCOPIC ULTRASOUND CENTER$9,527
- EVIS EXERA II ULTRASOUND GASTROVIDEOSCOPE$9,527
- OER-PRO$9,067
- Olympus Capital Accessories$9,067
- Olympus Endoscopic Ultrasound Scopes$8,942
- SPEEDBOAT$8,926
- Single Use Electrosurgical Knife KD-655$7,380
How this compares
$1,288,241 in reported general payments places this provider in the 95th percentile of 1,885 gastroenterology providers in California.
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.
Other gastroenterology in Newport Beach
- Jennifer PhanNewport Beach$226K
- Bennett RothLos Angeles$2.8M
- Douglas NguyenMission Viejo$2M
- Sammy SaabLos Angeles$1.9M
- Joo HwangStanford$1M
- Drew SchembreWalnut Creek$659K
- Quan Nhula Jolla$641K
- Sadeea AbbasiLos Angeles$556K
- Ali RezaieWest Hollywood$519K
- Kenneth BinmoellerSan Francisco$507K
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.