John Gong, MD
Internal Medicine · Barrington, ILNPI 1962414623
Payments from drug & device makers
Across 310 payments — averaging $35.14 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boehringer Ingelheim$2K
- Amgen$2K
- Novo Nordisk$2K
- AstraZeneca$1K
- Pfizer$722
- Lilly USA, LLC$674
- plus $2K from 24 others
What the payments were for
- Speaking & faculty fees$240%
- Food & beverage$10,868100%
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 |
|---|---|---|
| Boehringer Ingelheim | 41 | $2,206 |
| Amgen(2 entities) | 45 | $1,819 |
| Novo Nordisk | 51 | $1,708 |
| AstraZeneca(2 entities) | 26 | $1,371 |
| Pfizer | 34 | $722 |
| Lilly USA, LLC | 27 | $674 |
| Johnson & Johnson | 14 | $434 |
| Otsuka America Pharmaceutical, Inc. | 2 | $247 |
| Merck | 15 | $241 |
| GSK | 5 | $196 |
| Amarin Pharma, Inc. | 9 | $161 |
| Biohaven Pharmaceutical Holding Company Ltd. | 2 | $148 |
| Edwards Lifesciences | 2 | $140 |
| Boston Scientific | 1 | $116 |
| Abbott | 1 | $100 |
| Kowa Pharmaceuticals America, Inc. | 6 | $98 |
| Sanofi-aventis U.S. LLC | 5 | $92 |
| Esperion Therapeutics, Inc. | 6 | $87 |
| Sunovion Pharmaceuticals Inc. | 4 | $68 |
| Avanir Pharmaceuticals, Inc. | 2 | $49 |
| E.r. Squibb & Sons, L.L.C. | 3 | $42 |
| Lundbeck LLC | 1 | $33 |
| Shire North American Group Inc | 1 | $25 |
| Acorda Therapeutics, Inc | 1 | $24 |
| Exact Sciences | 1 | $18 |
| Daiichi Sankyo Inc. | 1 | $16 |
| Almatica Pharma LLC | 1 | $16 |
| Lucid Diagnostics Inc. | 1 | $15 |
| Inspire Medical Systems, Inc. | 1 | $15 |
| Mylan Specialty L.p. | 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
$10,892 in reported general payments places this provider in the 95th percentile of 5,182 internal medicine 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 |
|---|---|---|
| EliquisApixaban | 62 | $48,855 |
| JardianceEmpagliflozin | 25 | $34,918 |
| FarxigaDapagliflozin Propanediol | 20 | $25,899 |
| OzempicSemaglutide | 21 | $24,415 |
| JanumetSitagliptin Phos/Metformin Hcl | 13 | $16,492 |
| JanuviaSitagliptin Phosphate | 19 | $15,904 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 13 | $14,533 |
| Potassium Chloride | 52 | $8,154 |
| MyrbetriqMirabegron | 15 | $7,177 |
| SymbicortBudesonide/Formoterol Fumarate | 13 | $4,903 |
| Atorvastatin Calcium | 294 | $2,733 |
| Pitavastatin Calcium | 14 | $2,295 |
| Levothyroxine Sodium | 142 | $1,899 |
| Lantus SolostarInsulin Glargine,hum.Rec.Anlog | 12 | $1,340 |
| Metoprolol Succinate | 94 | $1,337 |
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 | $722 | $48,85562 claims |
| Boehringer IngelheimJardiance | $2,206 | $34,91825 claims |
| MerckJanumet, Januvia | $241 | $32,39632 claims |
| AstraZenecaFarxiga, Symbicort | $1,371 | $30,80233 claims |
| Novo NordiskOzempic | $1,708 | $24,41521 claims |
| GSKTrelegy Ellipta | $196 | $14,53313 claims |
| Almatica Pharma LLCSertraline Hcl | $16 | $27326 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 95th percentile of 5,182 internal medicine providers in Illinois.
Other internal medicine in Barrington
- Dennis LevinsonChicago$25.3M
- Mary BrownRockford$16M
- Andrew BartlettChampaign$4.1M
- Danny SugimotoChicago$4M
- Peter O DonnellChicago$3.9M
- Daniel CatenacciChicago$3.5M
- Jeffrey GeohasEvanston$2.3M
- Patricia WalshChicago$2.1M
- Merle DiamondChicago$1.7M
- Yoko MomoyamaLombard$1.6M
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.