Mark Choh, MD
Surgery · Berwyn, ILNPI 1023283611
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $2,970 of the $3,535 with a category attached, or 84.0%. It is spread thinly across 30 manufacturers, the largest accounting for just 18.6% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2021 at $956 and has fallen 90.7% since, to $88 in 2025.
Across 124 payments — averaging $28.51 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$657
- Novo Nordisk$452
- Aimmune Therapeutics, Inc.$370
- Takeda Pharmaceuticals U.S.A., Inc.$337
- Covidien LP$306
- Johnson & Johnson$201
- plus $1K from 24 others
What the payments were for
- Consulting fees$56516%
- Food & beverage$2,97084%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 | 6 | $657 |
| Novo Nordisk | 18 | $452 |
| Aimmune Therapeutics, Inc. | 32 | $370 |
| Takeda Pharmaceuticals U.S.A., Inc. | 13 | $337 |
| Covidien LP | 3 | $306 |
| Johnson & Johnson | 8 | $201 |
| W. L. Gore & Associates, Inc. | 7 | $185 |
| Smith+Nephew | 5 | $157 |
| Intuitive Surgical | 5 | $153 |
| Davol Inc. | 3 | $113 |
| Centinel Spine, LLC | 1 | $104 |
| Shire North American Group Inc | 3 | $56 |
| Coopersurgical, Inc. | 1 | $50 |
| Teleflex LLC | 1 | $48 |
| Boston Scientific | 1 | $40 |
| TELA Bio, Inc. | 2 | $33 |
| Hologic Sales And Service, LLC | 2 | $31 |
| Integra Lifesciences Corporation | 1 | $29 |
| Osiris Therapeutics Inc. | 1 | $24 |
| Sirius Medical Systems | 1 | $23 |
| TEI Biosciences Inc | 1 | $22 |
| Endo Pharmaceuticals Inc. | 1 | $20 |
| Lilly USA, LLC | 1 | $18 |
| Baxter Healthcare | 1 | $18 |
| Conmed Corporation | 1 | $16 |
| Pacira Pharmaceuticals Incorporated | 1 | $16 |
| Acera Surgical, Inc. | 1 | $15 |
| BD | 1 | $14 |
| Echosens North America, Inc. | 1 | $14 |
| Braintree Laboratories, 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.
How this compares
$3,535 in reported general payments places this provider in the 65th percentile of 1,180 surgery providers in Illinois.
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 |
|---|---|---|
| Pantoprazole Sodium | 11 | $38 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 12 | $36 |
Paid to pharmacies, not to this prescriber.
Other surgery in Berwyn
- Jaishankar RamanBurr Ridge$1.6M
- Reza GamagamiNew Lenox$1.2M
- Francesco BiancoChicago$1M
- Mark KeldahlChicago$765K
- Barry RosenBarrington$443K
- Douglas JonesChampaign$425K
- Rami LutfiChicago$411K
- Paul VanaDowners Grove$368K
- Erik BorncampNew Lenox$364K
- Michael UjikiEvanston$276K
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.