Khai Chang, MD
Internal Medicine · Mount Dora, FLNPI 1881665222
Payments from drug & device makers
Across 308 payments — averaging $18.89 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$675
- GSK$555
- Amgen$479
- Astellas Pharma US Inc$447
- AbbVie$365
- Novo Nordisk$356
- plus $3K from 43 others
What the payments were for
- Consulting fees$1753%
- Food & beverage$5,13588%
- Education$3436%
- Other$1653%
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.
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.
- Prolia$175
How this compares
$5,818 in reported general payments places this provider in the 90th percentile of 8,530 internal medicine providers in Florida.
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 | 146 | $185,042 |
| OzempicSemaglutide | 84 | $120,303 |
| TrulicityDulaglutide | 77 | $104,441 |
| JanuviaSitagliptin Phosphate | 77 | $89,496 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 58 | $80,094 |
| FarxigaDapagliflozin Propanediol | 55 | $71,951 |
| EntrestoSacubitril/Valsartan | 50 | $60,733 |
| XareltoRivaroxaban | 35 | $51,616 |
| MounjaroTirzepatide | 38 | $50,916 |
| JardianceEmpagliflozin | 17 | $27,048 |
| Fluticasone-SalmeterolFluticasone Propion/Salmeterol | 69 | $22,066 |
| Dabigatran EtexilateDabigatran Etexilate Mesylate | 60 | $21,587 |
| MyrbetriqMirabegron | 19 | $18,139 |
| Duloxetine Hcl | 510 | $17,708 |
| Breo ElliptaFluticasone/Vilanterol | 19 | $14,912 |
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, Premarin | $216 | $191,465159 claims |
| Lilly USA, LLCTrulicity, Mounjaro | $187 | $155,357115 claims |
| Novo NordiskOzempic | $356 | $120,30384 claims |
| GSKTrelegy Ellipta, Breo Ellipta, Shingrix | $555 | $109,014140 claims |
| MerckJanuvia | $91 | $89,49677 claims |
| AstraZenecaFarxiga | $165 | $71,95155 claims |
| NovartisEntresto | $675 | $60,73350 claims |
| Johnson & JohnsonXarelto | $220 | $51,61635 claims |
| Boehringer IngelheimJardiance, Spiriva Respimat | $51 | $37,33330 claims |
| Astellas Pharma US IncMyrbetriq | $447 | $18,13919 claims |
| AbbVieRestasis | $365 | $9,16011 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 90th percentile of 8,530 internal medicine providers in Florida.
Other internal medicine in Mount Dora
- Shirley NagelMount Dora$4.3M
- Yaneicy Gonzalez RojasCoral Gables$93.5M
- Juan Carlos RondonHollywood$66.8M
- Jaynier MoyaPembroke Pines$45.4M
- Mark KutnerMiami$35.7M
- Gilberto JimenezHialeah$35.6M
- Mira BaronWest Palm Beach$29.6M
- William SanchezHialeah$28.9M
- Nelia Sanchez-CrespoHollywood$28.8M
- Kwabena AyesuOrlando$27.6M
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.