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Ku Juey Chang, MD

Endocrinology, Diabetes & Metabolism · Lake Forest, CANPI 1689611337

Payments from drug & device makers

$366,967in general payments, 2019–2025

Across 1,267 payments — averaging $289.63 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Lilly USA, LLC$172K
  • Boehringer Ingelheim$158K
  • Esperion Therapeutics, Inc.$16K
  • Amgen$7K
  • AbbVie$3K
  • Cequr Corporation$2K
  • plus $10K from 54 others

What the payments were for

  • Consulting fees$8,6402%
  • Speaking & faculty fees$327,23689%
  • Travel & lodging$6,8542%
  • Food & beverage$24,2007%
  • Education$380%

General payments by program year

19
20
21
22
23
24
25

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.

CompanyPaymentsTotal
Lilly USA, LLC307$171,633
Boehringer Ingelheim226$157,622
Esperion Therapeutics, Inc.41$16,242
Amgen(2 entities)101$6,753
AbbVie(2 entities)125$2,553
Cequr Corporation3$2,367
Bayer43$956
AstraZeneca(2 entities)52$909
Novartis40$705
Sanofi-aventis U.S. LLC30$665
Corcept Therapeutics30$665
Novo Nordisk35$573
Biohaven Pharmaceutical Holding Company Ltd.5$409
Dexcom, Inc.15$376
Travere Therapeutics, Inc.14$366
Amarin Pharma, Inc.21$364
Calliditas Therapeutics US Inc.17$298
Insulet Corporation7$288
Kyowa Kirin, Inc.9$264
Mannkind Corporation16$249
Mallinckrodt Hospital Products Inc.9$191
Xeris Pharmaceuticals, Inc.8$171
Otsuka America Pharmaceutical, Inc.8$164
Merck10$154
Abbott6$148
Verity Pharmaceuticals Inc.6$132
ANI Pharmaceuticals, Inc.3$132
Bigfoot Biomedical Inc1$125
Valeritas, Inc.5$109
Zealand Pharma US, Inc.5$108
Embecta Corp.6$106
OPKO Pharmaceuticals, LLC5$91
Madrigal Pharmaceuticals2$69
Vifor Pharma, Inc.5$69
IBSA Pharma Inc.3$63
Acerus Pharmaceuticals Corporation3$58
Currax Pharmaceuticals LLC4$55
Ascendis Pharma Endocrinology Inc2$49
Alfasigma USA, Inc.3$43
Salix Pharmaceuticals, A Division Of Bausch Health US, LLC2$42
Halozyme Inc2$42
Arbor Pharmaceuticals, Inc.3$40
Boston Scientific2$40
Inari Medical, Inc.1$38
Eisai Inc.2$33
Antares Pharma, Inc.2$30
Alvogen Inc1$25
Nestle Healthcare Nutrition Inc.1$24
Recordati_rare_diseases_inc.1$24
Daiichi Sankyo Inc.1$23
Sequel Med Tech, LLC1$22
Tandem Diabetes Care, Inc.1$21
Apellis Pharmaceuticals, Inc.1$21
Scilex Pharmaceuticals Inc.1$21
Ionis Pharmaceuticals, Inc.1$20
Neurocrine Biosciences, Inc.1$20
Endo Pharmaceuticals Inc.1$19
Ultragenyx Pharmaceutical Inc.1$18
Radius Health, Inc.1$18
Amryt Pharma Holdings Ltd1$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

$366,967 in reported general payments places this provider in the 90th percentile of 952 endocrinology, diabetes & metabolism providers in California.

See all endocrinology, diabetes & metabolism providers in California

Medicare billing

Part B allowed, 2024
$483,191
Medicare patients
376
Services billed
22,214

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

DrugClaimsCost to plans & patients
JardianceEmpagliflozin326$334,803
MounjaroTirzepatide195$227,809
KerendiaFinerenone185$159,597
Repatha SureclickEvolocumab108$85,582
OzempicSemaglutide59$72,417
JanuviaSitagliptin Phosphate59$52,667
TrulicityDulaglutide41$44,792
VascepaIcosapent Ethyl44$35,130
SynthroidLevothyroxine Sodium243$25,193
JanumetSitagliptin Phos/Metformin Hcl17$20,446
Tresiba Flextouch U-100Insulin Degludec20$15,887
TradjentaLinagliptin14$14,639
FarxigaDapagliflozin Propanediol16$12,735
LokelmaSodium Zirconium Cyclosilicate16$12,693
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog15$11,154

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.

CompanyPaid to this providerPart D cost of their drugs
Boehringer IngelheimJardiance, Tradjenta$157,622$349,442340 claims
Lilly USA, LLCMounjaro, Trulicity$171,633$272,601236 claims
BayerKerendia$956$159,597185 claims
MerckJanuvia, Janumet$154$73,11376 claims
Novo NordiskOzempic$573$72,41759 claims
AstraZenecaFarxiga, Lokelma$909$25,42732 claims
AbbVieSynthroid$2,553$25,193243 claims
Esperion Therapeutics, Inc.Nexletol$16,242$10,57212 claims
IBSA Pharma Inc.Tirosint$63$3,51013 claims
ANI Pharmaceuticals, Inc.Valsartan$132$1,19540 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 952 endocrinology, diabetes & metabolism providers in California.

Other endocrinology, diabetes & metabolism in Lake Forest

See the full list for California

Where these figures come from

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