Chun Kit Chan, DO
Internal Medicine · New York, NYNPI 1730284308
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $43,810 of the $57,166 with a category attached, or 76.6%. Gilead accounts for 86.9% of it on its own, with 20 other manufacturers making up the rest. Reporting peaked in 2019 at $17,351 and has fallen 64.1% since, to $6,221 in 2025. Among internal medicine clinicians in NY with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 557 payments — averaging $102.63 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Gilead$50K
- Amgen$1K
- Novo Nordisk$1K
- AstraZeneca$960
- Boehringer Ingelheim$682
- Lilly USA, LLC$567
- plus $3K from 15 others
What the payments were for
- Speaking & faculty fees$43,81077%
- Travel & lodging$1,0182%
- Food & beverage$12,31822%
- Education$200%
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 |
|---|---|---|
| Gilead | 199 | $49,681 |
| Amgen(2 entities) | 59 | $1,340 |
| Novo Nordisk | 67 | $1,282 |
| AstraZeneca | 51 | $960 |
| Boehringer Ingelheim | 27 | $682 |
| Lilly USA, LLC | 31 | $567 |
| GSK | 21 | $425 |
| Merck | 19 | $405 |
| Exact Sciences | 13 | $315 |
| Sumitomo Pharma America, Inc. | 13 | $284 |
| Astellas Pharma US Inc | 12 | $264 |
| Bayer | 7 | $174 |
| Johnson & Johnson | 8 | $173 |
| Pfizer | 8 | $155 |
| Amarin Pharma, Inc. | 7 | $139 |
| AbbVie | 3 | $83 |
| Corium, LLC | 3 | $77 |
| Seqirus USA Inc | 3 | $50 |
| Kowa Pharmaceuticals America, Inc. | 3 | $50 |
| Insmed, Inc. | 2 | $41 |
| Arbor Pharmaceuticals, Inc. | 1 | $18 |
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.
- Vemlidy$17,418
How this compares
$57,166 in reported general payments places this provider in the 95th percentile of 9,771 internal medicine providers in New York.
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 |
|---|---|---|
| VemlidyTenofovir Alafenamide | 226 | $342,689 |
| JanuviaSitagliptin Phosphate | 130 | $113,663 |
| JardianceEmpagliflozin | 88 | $107,534 |
| RybelsusSemaglutide | 53 | $101,518 |
| FarxigaDapagliflozin Propanediol | 72 | $69,421 |
| ProliaDenosumab | 38 | $63,289 |
| XareltoRivaroxaban | 58 | $49,693 |
| TradjentaLinagliptin | 46 | $39,229 |
| VascepaIcosapent Ethyl | 69 | $31,859 |
| MyrbetriqMirabegron | 29 | $28,200 |
| EliquisApixaban | 18 | $26,084 |
| OzempicSemaglutide | 25 | $23,540 |
| LinzessLinaclotide | 12 | $13,860 |
| Diclofenac Epolamine | 25 | $10,781 |
| Atorvastatin Calcium | 1,004 | $9,509 |
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 |
|---|---|---|
| GileadVemlidy | $49,681 | $342,689226 claims |
| Boehringer IngelheimJardiance, Tradjenta, Combivent Respimat | $682 | $154,290150 claims |
| Novo NordiskRybelsus, Ozempic | $1,282 | $125,05878 claims |
| MerckJanuvia | $405 | $113,663130 claims |
| AstraZenecaFarxiga | $960 | $69,42172 claims |
| AmgenProlia | $1,340 | $63,28938 claims |
| Johnson & JohnsonXarelto | $173 | $49,69358 claims |
| Astellas Pharma US IncMyrbetriq | $264 | $28,20029 claims |
| PfizerEliquis | $155 | $26,08418 claims |
| AbbVieLinzess, Synthroid | $83 | $17,77745 claims |
| GSKShingrix, Incruse Ellipta | $425 | $11,99569 claims |
| Kowa Pharmaceuticals America, Inc.Livalo | $50 | $6,91211 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 9,771 internal medicine providers in New York.
Other internal medicine in New York
- Stephen SaletanNew York$2.6M
- Ziad AliNew York$2M
- Ricky HsuNew York$1M
- James UnderbergNew York$953K
- Terry PlasseNew York$883K
- Krisczar BungayNew York$554K
- Eytan SteinNew York$496K
- Larry NeumanNew York$457K
- Wuhua JingNew York$338K
- Harvey SchneienNew York$334K
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.