George Ngan, MD
Internal Medicine · Los Angeles, CANPI 1316054174
Payments from drug & device makers
Across 170 payments — averaging $23.42 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$945
- Boehringer Ingelheim$620
- Novo Nordisk$359
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$352
- Bayer$314
- GSK$195
- plus $1K from 25 others
What the payments were for
- Food & beverage$3,977100%
- Education$50%
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 |
|---|---|---|
| Pfizer | 39 | $945 |
| Boehringer Ingelheim | 23 | $620 |
| Novo Nordisk | 17 | $359 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 20 | $352 |
| Bayer | 15 | $314 |
| GSK | 7 | $195 |
| Lilly USA, LLC | 8 | $191 |
| Amgen | 5 | $156 |
| Valeritas, Inc. | 4 | $131 |
| Johnson & Johnson(2 entities) | 3 | $89 |
| Shield Therapeutics Inc | 3 | $83 |
| Acadia Pharmaceuticals Inc | 2 | $67 |
| E.r. Squibb & Sons, L.L.C. | 3 | $54 |
| AbbVie(2 entities) | 3 | $44 |
| Novartis | 1 | $39 |
| Sanofi-aventis U.S. LLC | 1 | $35 |
| Teleflex LLC | 1 | $32 |
| Sanofi Pasteur Inc. | 2 | $29 |
| Ironwood Pharmaceuticals, Inc | 1 | $28 |
| Astellas Pharma US Inc | 1 | $25 |
| Eisai Inc. | 1 | $24 |
| Daiichi Sankyo Inc. | 1 | $24 |
| Merck | 1 | $22 |
| Exact Sciences | 1 | $21 |
| Optos, Inc. | 1 | $20 |
| Gilead | 1 | $17 |
| Seqirus USA Inc | 1 | $16 |
| Hologic Sales And Service, LLC | 1 | $15 |
| Zealand Pharma US, Inc. | 1 | $12 |
| AstraZeneca | 1 | $12 |
| Arbor Pharmaceuticals, Inc. | 1 | $11 |
How this compares
$3,982 in reported general payments places this provider in the 85th percentile of 13,581 internal medicine providers in California.
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 |
|---|---|---|
| JanuviaSitagliptin Phosphate | 100 | $92,202 |
| JardianceEmpagliflozin | 69 | $77,681 |
| EliquisApixaban | 45 | $61,242 |
| BiktarvyBictegrav/Emtricit/Tenofov Ala | 14 | $56,655 |
| OzempicSemaglutide | 31 | $37,316 |
| RybelsusSemaglutide | 11 | $22,295 |
| XareltoRivaroxaban | 22 | $17,487 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 14 | $10,313 |
| Toujeo SolostarInsulin Glargine,hum.Rec.Anlog | 11 | $9,144 |
| Lantus SolostarInsulin Glargine,hum.Rec.Anlog | 34 | $7,011 |
| SymbicortBudesonide/Formoterol Fumarate | 22 | $6,361 |
| Losartan Potassium | 593 | $6,310 |
| Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog | 18 | $5,195 |
| Atorvastatin Calcium | 475 | $4,147 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 83 | $2,358 |
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 |
|---|---|---|
| MerckJanuvia | $22 | $92,202100 claims |
| Boehringer IngelheimJardiance | $620 | $77,68169 claims |
| PfizerEliquis | $945 | $61,24245 claims |
| Novo NordiskOzempic, Rybelsus | $359 | $59,61142 claims |
| GileadBiktarvy | $17 | $56,65514 claims |
| Johnson & JohnsonXarelto | $89 | $17,48722 claims |
| GSKTrelegy Ellipta | $195 | $10,31314 claims |
| AstraZenecaSymbicort | $12 | $6,36122 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 85th percentile of 13,581 internal medicine providers in California.
Other internal medicine in Los Angeles
- William TownerLos Angeles$27.4M
- Herbert EradatLos Angeles$11.6M
- Deborah WongLos Angeles$10.7M
- Robin KelleyLos Angeles$5.8M
- David GuzmanLos Angeles$4.3M
- Siwen Hu-LieskovanLos Angeles$2.9M
- Andrew ChengSouth San Francisco$55.1M
- Joel NeutelTustin$34.9M
- Donald BrandonSan Diego$34M
- Rahul AggarwalSan Francisco$24M
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.