Sunguk Jang, MD
Gastroenterology · Cleveland, OHNPI 1134140577
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $42,634 of the $64,008 with a category attached, or 66.6%. 22 manufacturers reported payments, led by US Endoscopy at 53.3% of the total. 2025 is the largest year on record at $24,831, 2.2 times the $11,305 reported in 2019. Among gastroenterology clinicians in OH with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 213 payments — averaging $300.51 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- US Endoscopy$34K
- Boston Scientific$25K
- Celltrion, Inc.$2K
- Steris Corporation$1K
- AbbVie$350
- Fujifilm Healthcare Americas Corporation$237
- plus $1K from 16 others
What the payments were for
- Consulting fees$42,63467%
- Speaking & faculty fees$1,0002%
- Travel & lodging$11,73518%
- Food & beverage$8,64013%
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 |
|---|---|---|
| US Endoscopy | 9 | $34,111 |
| Boston Scientific | 129 | $24,921 |
| Celltrion, Inc. | 2 | $2,072 |
| Steris Corporation | 13 | $1,227 |
| AbbVie | 22 | $350 |
| Fujifilm Healthcare Americas Corporation | 1 | $237 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 11 | $185 |
| Braintree Laboratories, Inc. | 1 | $144 |
| Covidien LP | 1 | $136 |
| Madrigal Pharmaceuticals | 1 | $125 |
| Olympus America Inc. | 3 | $123 |
| Intercept Pharmaceuticals, Inc. | 5 | $90 |
| Aimmune Therapeutics, Inc. | 3 | $54 |
| Nestle Healthcare Nutrition Inc. | 3 | $48 |
| Celltrion USA Inc. | 1 | $39 |
| Shionogi Inc | 2 | $27 |
| Regeneron Healthcare Solutions, Inc. | 1 | $26 |
| Sanofi | 1 | $23 |
| Sandoz | 1 | $22 |
| Bristol Myers Squibb | 1 | $18 |
| Cook Medical LLC | 1 | $14 |
| Vivus LLC | 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.
- GENERAL - THERAPIES$8,913
- AXIOS$5,347
- GENERAL HEMOSTASIS$3,620
- GENERAL ENDOCHOICE$1,410
- EXALT Model D$571
- GENERAL - BILIARY DEVICES$486
- SPYGLASS$404
- Snowden-Pencer$351
- INFINITY$278
- Histoguide Wire guided forceps$278
- FUJIFILM$237
- GENERAL POLYPECTOMY$144
- SUTAB$144
- SUFLAVE$144
- Beacon$136
- REZDIFFRA$125
- ACQUIRE$122
- RESOLUTION CLIP$121
- Bioshield$120
- EXALT BX 4$115
How this compares
$64,008 in reported general payments places this provider in the 90th percentile of 657 gastroenterology providers in Ohio.
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 |
|---|---|---|
| Omeprazole | 23 | $652 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Cleveland
- Pierre GholamCleveland$1.6M
- Florian RiederCleveland$396K
- Stanley CohenCleveland$338K
- Taha QaziCleveland$307K
- Vu NguyenCleveland$145K
- Benjamin CohenCleveland$144K
- Imad AsaadCleveland$141K
- Ronnie FassCleveland$123K
- Amit BhattCleveland$118K
- Anjana PillaiCleveland$115K
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.