Eric Christoff
Internal Medicine · Chicago, ILNPI 1245287317
Payments from drug & device makers
Across 782 payments — averaging $48.45 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Viiv Healthcare Company$17K
- Gilead$13K
- Merck$1K
- AbbVie$996
- Theratechnologies Inc.$987
- Napo Pharmaceuticals Inc$698
- plus $3K from 30 others
What the payments were for
- Consulting fees$17,49046%
- Speaking & faculty fees$560%
- Travel & lodging$2,0785%
- Food & beverage$18,03948%
- Education$2281%
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 |
|---|---|---|
| Viiv Healthcare Company | 278 | $17,412 |
| Gilead | 180 | $13,291 |
| Merck | 52 | $1,462 |
| AbbVie | 42 | $996 |
| Theratechnologies Inc. | 24 | $987 |
| Napo Pharmaceuticals Inc | 52 | $698 |
| Johnson & Johnson(2 entities) | 45 | $660 |
| Janssen Products, LP | 3 | $300 |
| Otsuka America Pharmaceutical, Inc. | 12 | $259 |
| Novo Nordisk | 12 | $257 |
| Pfizer | 10 | $233 |
| Amgen | 10 | $219 |
| Lilly USA, LLC | 11 | $207 |
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.) | 7 | $157 |
| Dynavax Technologies Corporation | 10 | $122 |
| GSK | 4 | $79 |
| EMD Serono, Inc. | 3 | $60 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $58 |
| Melinta Therapeutics, LLC | 2 | $37 |
| Sanofi Pasteur Inc. | 1 | $33 |
| Kowa Pharmaceuticals America, Inc. | 2 | $31 |
| AstraZeneca | 2 | $31 |
| Braeburn Inc. | 2 | $30 |
| VBI Vaccine (delaware) Inc. | 2 | $27 |
| USWM, LLC | 2 | $26 |
| Inspire Medical Systems, Inc. | 1 | $25 |
| Indivior Inc. | 1 | $24 |
| Lundbeck LLC | 1 | $22 |
| Exact Sciences | 1 | $22 |
| Antares Pharma, Inc. | 1 | $21 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $20 |
| Organon | 1 | $18 |
| Amarin Pharma, Inc. | 1 | $18 |
| Jazz Pharmaceuticals Inc. | 1 | $17 |
| Coopersurgical, Inc. | 1 | $17 |
| Currax Pharmaceuticals LLC | 1 | $15 |
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
$37,891 in reported general payments places this provider in the 95th percentile of 5,182 internal medicine providers in Illinois.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| BiktarvyBictegrav/Emtricit/Tenofov Ala | 127 | $539,863 |
| DescovyEmtricitabine/Tenofov Alafenam | 178 | $412,700 |
| DovatoDolutegravir Sodium/Lamivudine | 59 | $188,322 |
| Isentress HdRaltegravir Potassium | 41 | $80,803 |
| CabenuvaCabotegravir/Rilpivirine | 12 | $80,456 |
| GenvoyaElviteg/Cob/Emtri/Tenof Alafen | 18 | $68,931 |
| TivicayDolutegravir Sodium | 25 | $65,676 |
| TrulicityDulaglutide | 39 | $52,493 |
| MounjaroTirzepatide | 28 | $38,167 |
| PrezcobixDarunavir/Cobicistat | 14 | $33,401 |
| FarxigaDapagliflozin Propanediol | 27 | $24,284 |
| JardianceEmpagliflozin | 22 | $19,893 |
| OzempicSemaglutide | 18 | $18,474 |
| XareltoRivaroxaban | 17 | $18,065 |
| Aimovig AutoinjectorErenumab-Aooe | 18 | $13,133 |
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 |
|---|---|---|
| GileadBiktarvy, Descovy, Genvoya | $13,291 | $1,021,494323 claims |
| Viiv Healthcare CompanyDovato, Cabenuva, Tivicay | $17,412 | $334,45396 claims |
| Lilly USA, LLCTrulicity, Mounjaro, Humalog | $207 | $94,02382 claims |
| MerckIsentress Hd | $1,462 | $80,80341 claims |
| Johnson & JohnsonPrezcobix, Xarelto | $660 | $51,46631 claims |
| AstraZenecaFarxiga | $31 | $24,28427 claims |
| Novo NordiskOzempic | $257 | $18,47418 claims |
| PfizerEliquis | $233 | $11,08711 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Trintellix | $58 | $8,31617 claims |
| GSKArnuity Ellipta | $79 | $3,17411 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 Chicago
- Dennis LevinsonChicago$25.3M
- Danny SugimotoChicago$4M
- Peter O DonnellChicago$3.9M
- Daniel CatenacciChicago$3.5M
- Patricia WalshChicago$2.1M
- Merle DiamondChicago$1.7M
- Mohammed KassemChicago$1.3M
- David BakerChicago$1M
- Azazuddin AhmedChicago$912K
- Daniel BergerChicago$861K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.