David Gu, DO
Internal Medicine · Alhambra, CANPI 1225107006
Payments from drug & device makers
Across 557 payments — averaging $62.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Gilead$23K
- AbbVie$2K
- AstraZeneca$2K
- Amgen$987
- Bayer$737
- Pfizer$635
- plus $6K from 35 others
What the payments were for
- Speaking & faculty fees$21,90063%
- Food & beverage$13,00337%
- Education$890%
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 | 74 | $22,856 |
| AbbVie(2 entities) | 98 | $2,248 |
| AstraZeneca | 85 | $1,860 |
| Amgen | 33 | $987 |
| Bayer | 28 | $737 |
| Pfizer | 24 | $635 |
| Merck | 26 | $550 |
| CMP Pharma, Inc. | 8 | $521 |
| Amarin Pharma, Inc. | 18 | $458 |
| Novo Nordisk | 14 | $397 |
| Boehringer Ingelheim | 16 | $371 |
| Johnson & Johnson | 13 | $352 |
| Radius Health, Inc. | 11 | $332 |
| GSK | 17 | $310 |
| Corium, LLC | 7 | $287 |
| Novartis | 12 | $249 |
| Astellas Pharma US Inc | 11 | $231 |
| Dermavant Sciences, Inc. | 3 | $204 |
| Lilly USA, LLC | 8 | $178 |
| Almatica Pharma LLC | 7 | $120 |
| Dexcom, Inc. | 5 | $120 |
| Sun Pharmaceutical Industries Inc. | 1 | $119 |
| Abiomed | 1 | $100 |
| Biogen | 4 | $91 |
| E.r. Squibb & Sons, L.L.C. | 4 | $88 |
| Vivus LLC | 4 | $85 |
| Scilex Pharmaceuticals Inc. | 4 | $68 |
| Eisai Inc. | 3 | $63 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 3 | $61 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $53 |
| Ironwood Pharmaceuticals, Inc | 2 | $48 |
| Strata Skin Sciences, Inc. | 1 | $31 |
| Exact Sciences | 1 | $23 |
| Sanofi | 1 | $22 |
| SK Life Science, Inc. | 1 | $22 |
| Otsuka America Pharmaceutical, Inc. | 1 | $21 |
| Evoke Pharma, Inc. | 1 | $21 |
| Hologic Sales And Service, LLC | 1 | $20 |
| Strongbridge US Inc. | 1 | $19 |
| Sanofi-aventis U.S. LLC | 1 | $19 |
| Genentech USA, Inc. | 1 | $17 |
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
$34,991 in reported general payments places this provider in the 95th 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 |
|---|---|---|
| CreonLipase/Protease/Amylase | 175 | $221,635 |
| ProliaDenosumab | 116 | $193,802 |
| JardianceEmpagliflozin | 236 | $187,510 |
| VascepaIcosapent Ethyl | 348 | $146,712 |
| FarxigaDapagliflozin Propanediol | 162 | $117,641 |
| JanuviaSitagliptin Phosphate | 141 | $99,032 |
| OzempicSemaglutide | 59 | $88,821 |
| XareltoRivaroxaban | 132 | $85,900 |
| ZenpepLipase/Protease/Amylase | 45 | $69,331 |
| EliquisApixaban | 170 | $69,164 |
| KerendiaFinerenone | 72 | $65,769 |
| VemlidyTenofovir Alafenamide | 45 | $64,175 |
| Diclofenac Sodium | 192 | $58,457 |
| LinzessLinaclotide | 92 | $52,887 |
| Tresiba Flextouch U-200Insulin Degludec | 14 | $45,551 |
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 |
|---|---|---|
| AbbVieCreon, Linzess, Restasis, Namzaric | $2,248 | $329,437344 claims |
| Boehringer IngelheimJardiance, Tradjenta | $371 | $210,349292 claims |
| AmgenProlia | $987 | $193,802116 claims |
| AstraZenecaFarxiga, Breztri Aerosphere, Brilinta | $1,860 | $138,254199 claims |
| MerckJanuvia, Janumet | $550 | $119,668176 claims |
| Johnson & JohnsonXarelto, Procrit | $352 | $110,268147 claims |
| Novo NordiskOzempic, Rybelsus | $397 | $107,78273 claims |
| PfizerEliquis | $635 | $69,164170 claims |
| BayerKerendia | $737 | $65,76972 claims |
| GileadVemlidy | $22,856 | $64,17545 claims |
| GSKTrelegy Ellipta | $310 | $20,32427 claims |
| NovartisEntresto | $249 | $19,77929 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 13,581 internal medicine providers in California.
Other internal medicine in Alhambra
- Andrew ChengSouth San Francisco$55.1M
- Joel NeutelTustin$34.9M
- Donald BrandonSan Diego$34M
- William TownerLos Angeles$27.4M
- Rahul AggarwalSan Francisco$24M
- Masoud AzizadNorthridge$21.1M
- Helen StaceyWalnut Creek$20.4M
- Rohit Loombala Jolla$15.1M
- Zeid KayaliColton$14.2M
- Alexandra DrakakiSanta Monica$14.2M
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.