Healthcare provider profile · identity verified

David Hyunin Ko, MD

Allopathic & Osteopathic Physicians|Internal Medicine · ENCINITAS, CA · NPI 1689683690

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show David Hyunin Ko, MD received $444.39 in general payments during 2025 across 14 reported records.

ABBVIE INC. accounted for 90.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Mounjaro.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ARMOUR THYROID as an associated drug or biological on 50 records involving 11 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Armour Thyroid by this doctor in 2024.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 89 claims for Synthroid by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 74 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 50 claims for Mounjaro by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Trulicity by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$444.39

14 reported records · 3 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
ABBVIE INC. Unresolved — no canonical attribution shown $403.5790.8%122025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $27.236.1%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $13.593.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$444.3914

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $403.57 12 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $175.36 7 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $27.23 1 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $27.23 1 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $13.59 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $13.59 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
MOUNJARO
mounjaro
2025 Mounjaro 2024 50
Beneficiary count suppressed
exact normalized Medicare Part D

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 ARMOUR THYROID
open payments reported associated product
CMS Open Payments — General Payments
50 supporting records · 11 recipient NPIs · example record 1201517088
Armour Thyroid · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
89 25
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
74 17
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
50 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium619184
Amlodipine BesylateAmlodipine Besylate399112
Losartan PotassiumLosartan Potassium394116
Levothyroxine SodiumLevothyroxine Sodium387115
Tamsulosin HclTamsulosin Hcl22177
Rosuvastatin CalciumRosuvastatin Calcium21471
Metoprolol SuccinateMetoprolol Succinate19555
Metformin HclMetformin Hcl19155
Pantoprazole SodiumPantoprazole Sodium14849
Zolpidem TartrateZolpidem Tartrate14737
LisinoprilLisinopril13741
Metformin Hcl ErMetformin Hcl13545
AlprazolamAlprazolam12433
GabapentinGabapentin12243
Escitalopram OxalateEscitalopram Oxalate11030
FinasterideFinasteride10831
HydrochlorothiazideHydrochlorothiazide10734
OmeprazoleOmeprazole10135
CarvedilolCarvedilol9725
Trazodone HclTrazodone Hcl9630
LorazepamLorazepam9522
EliquisApixaban9219
SynthroidLevothyroxine Sodium8925
Tramadol HclTramadol Hcl7915
Duloxetine HclDuloxetine Hcl7518
JardianceEmpagliflozin7417
Pravastatin SodiumPravastatin Sodium7122
Quetiapine FumarateQuetiapine Fumarate6715
AllopurinolAllopurinol6421
ValsartanValsartan6213
SimvastatinSimvastatin5717
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5417
FurosemideFurosemide5313
Sertraline HclSertraline Hcl5116
MounjaroTirzepatide50suppressed
ClonazepamClonazepam44suppressed
CelecoxibCelecoxib4216
ClopidogrelClopidogrel Bisulfate4214
IrbesartanIrbesartan4212
Albuterol Sulfate HfaAlbuterol Sulfate4120
Benazepril HclBenazepril Hcl4112
Alfuzosin Hcl ErAlfuzosin Hcl4012
ValacyclovirValacyclovir Hcl4017
Potassium ChloridePotassium Chloride38suppressed
FamotidineFamotidine3712
ChlorthalidoneChlorthalidone36suppressed
Fluoxetine HclFluoxetine Hcl3611
Alendronate SodiumAlendronate Sodium35suppressed
Fluticasone PropionateFluticasone Propionate3419
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3328
PrednisonePrednisone3322
Tizanidine HclTizanidine Hcl3314
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen32suppressed
LovastatinLovastatin32suppressed
Metoprolol TartrateMetoprolol Tartrate32suppressed
Olmesartan MedoxomilOlmesartan Medoxomil32suppressed
Bupropion XlBupropion Hcl3112
PregabalinPregabalin28suppressed
SpironolactoneSpironolactone2811
EstradiolEstradiol2712
EzetimibeEzetimibe2711
Montelukast SodiumMontelukast Sodium27suppressed
Sumatriptan SuccinateSumatriptan Succinate27suppressed
Citalopram HbrCitalopram Hydrobromide26suppressed
DiazepamDiazepam26suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl26suppressed
MirtazapineMirtazapine25suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid25suppressed
Venlafaxine Hcl ErVenlafaxine Hcl25suppressed
OzempicSemaglutide24suppressed
XareltoRivaroxaban24suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl22suppressed
TemazepamTemazepam22suppressed
CefuroximeCefuroxime Axetil2118
Donepezil HclDonepezil Hcl21suppressed
AcyclovirAcyclovir20suppressed
Bupropion Hcl SrBupropion Hcl20suppressed
Memantine HclMemantine Hcl20suppressed
Buspirone HclBuspirone Hcl18suppressed
LatanoprostLatanoprost18suppressed
MyrbetriqMirabegron18suppressed
EszopicloneEszopiclone17suppressed
Midodrine HclMidodrine Hcl16suppressed
AripiprazoleAripiprazole15suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1513
FenofibrateFenofibrate Nanocrystallized15suppressed
Ipratropium BromideIpratropium Bromide15suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide15suppressed
PremarinEstrogens, Conjugated15suppressed
Acetaminophen-CodeineAcetaminophen With Codeine14suppressed
MeloxicamMeloxicam14suppressed
Propranolol HclPropranolol Hcl14suppressed
TestosteroneTestosterone14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
Armour ThyroidThyroid,pork13suppressed
Glipizide ErGlipizide13suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide13suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide13suppressed
Amitriptyline HclAmitriptyline Hcl12suppressed
Nifedipine ErNifedipine12suppressed
TrintellixVortioxetine Hydrobromide12suppressed
TrulicityDulaglutide12suppressed
AmoxicillinAmoxicillin11suppressed
AtenololAtenolol11suppressed
Azelastine HclAzelastine Hcl11suppressed
FenofibrateFenofibrate11suppressed
InvokanaCanagliflozin11suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen11suppressed
TorsemideTorsemide11suppressed
Verapamil ErVerapamil Hcl11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $444.39 · 14 records ABBVIE INC. CAPVAXIVE, GARDASIL 9, MOUNJARO, QULIPTA, UBRELVY, ZEPBOUND 5
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error