Kichul Ko
Rheumatology · Chicago, ILNPI 1649472440
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (55.8%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. 13 manufacturers reported payments, led by GSK at 57.0% of the total. Reporting peaked in 2021 at $7,024 and has fallen 97.5% since, to $178 in 2025.
Across 39 payments — averaging $200.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$4K
- Aurinia Pharma U.S., Inc.$3K
- Amgen$216
- E.r. Squibb & Sons, L.L.C.$135
- AbbVie$134
- Sanofi$41
- plus $185 from 7 others
Across 24 payments — averaging $5358.56 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.
- Janssen Research & Development, LLC$61K
- Amgen$35K
- AbbVie$32K
- Eli Lilly$1K
- EMD Serono, Inc.$628
What the payments were for
- Consulting fees$4,37056%
- Speaking & faculty fees$2,52032%
- Food & beverage$93312%
- Education$30%
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 |
|---|---|---|
| GSK | 8 | $4,463 |
| Aurinia Pharma U.S., Inc. | 2 | $2,652 |
| Amgen(2 entities) | 10 | $216 |
| E.r. Squibb & Sons, L.L.C. | 3 | $135 |
| AbbVie | 5 | $134 |
| Sanofi | 2 | $41 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $36 |
| UCB, Inc. | 1 | $35 |
| Genentech USA, Inc. | 2 | $32 |
| Pfizer | 1 | $28 |
| Inogen, Inc. | 1 | $26 |
| Johnson & Johnson | 1 | $15 |
| Medexus Pharma, 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
$7,826 in reported general payments places this provider in the 75th percentile of 287 rheumatology 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 |
|---|---|---|
| Humira PenAdalimumab | 62 | $444,881 |
| PrivigenImmun Glob G(Igg)/Pro/Iga 0-50 | 12 | $392,309 |
| HizentraImmun Glob G(Igg)/Pro/Iga 0-50 | 11 | $129,305 |
| Humira(Cf) PenAdalimumab | 14 | $96,973 |
| KevzaraSarilumab | 16 | $84,720 |
| BenlystaBelimumab | 11 | $69,192 |
| Mycophenolate Mofetil | 51 | $10,249 |
| Hydroxychloroquine Sulfate | 96 | $2,147 |
| Prednisone | 131 | $791 |
| Mycophenolic AcidMycophenolate Sodium | 11 | $722 |
| MethotrexateMethotrexate Sodium | 18 | $631 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 24 | $493 |
| Azathioprine | 11 | $465 |
| Cyclobenzaprine Hcl | 38 | $439 |
| Pregabalin | 18 | $402 |
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 |
|---|---|---|
| SanofiKevzara | $41 | $84,72016 claims |
| GSKBenlysta | $4,463 | $69,19211 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 75th percentile of 287 rheumatology providers in Illinois.
Other rheumatology in Chicago
- Manish JainChicago$1.9M
- Theodore PincusChicago$524K
- Eric RudermanChicago$440K
- Anisha DuaChicago$280K
- Arthur MandelinChicago$270K
- Robert WoodrickChicago$143K
- Maria SosenkoChicago$87K
- Ailda NikaChicago$74K
- Duncan MooreChicago$71K
- Timothy NiewoldChicago$65K
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.