Healthcare provider profile · identity verified

Roger Ang, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · ROSEVILLE, CA · NPI 1144251497

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 Roger Ang, M.D. received $336.29 in general payments during 2025 across 3 reported records.

Janssen Biotech, Inc. accounted for 71.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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 61 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 31 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

$336.29

3 reported records · 2 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
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $238.8171.0%22025
Lilly USA, LLC Unresolved — no canonical attribution shown $97.4829.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$336.293

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
CARVYKTI
Normalized: carvykti
Drug Janssen Biotech, Inc. $238.81 2 2025
Source payment records
RYBREVANT
Normalized: rybrevant
Drug Janssen Biotech, Inc. $238.81 2 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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
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
61 16
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
31 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 Calcium446127
Levothyroxine SodiumLevothyroxine Sodium23158
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen22242
Amlodipine BesylateAmlodipine Besylate21664
Losartan PotassiumLosartan Potassium21265
GabapentinGabapentin20150
LisinoprilLisinopril19561
Metformin Hcl ErMetformin Hcl17456
Rosuvastatin CalciumRosuvastatin Calcium17448
Metoprolol SuccinateMetoprolol Succinate16948
Tamsulosin HclTamsulosin Hcl14746
OmeprazoleOmeprazole12337
AllopurinolAllopurinol10831
Trazodone HclTrazodone Hcl10828
SimvastatinSimvastatin10732
FinasterideFinasteride10432
Tizanidine HclTizanidine Hcl9830
Duloxetine HclDuloxetine Hcl8722
Albuterol Sulfate HfaAlbuterol Sulfate8533
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide8428
AlprazolamAlprazolam8322
EliquisApixaban8119
MeloxicamMeloxicam8129
Escitalopram OxalateEscitalopram Oxalate7525
Pantoprazole SodiumPantoprazole Sodium7426
Montelukast SodiumMontelukast Sodium6622
Fluoxetine HclFluoxetine Hcl6218
JardianceEmpagliflozin6116
Hydralazine HclHydralazine Hcl5912
Oxycodone HclOxycodone Hcl59suppressed
Fluticasone PropionateFluticasone Propionate5619
Bupropion XlBupropion Hcl5517
RybelsusSemaglutide5513
FurosemideFurosemide5216
LorazepamLorazepam4911
Quetiapine FumarateQuetiapine Fumarate4612
Sertraline HclSertraline Hcl4614
OzempicSemaglutide45suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide4313
Azelastine HclAzelastine Hcl4216
SpironolactoneSpironolactone42suppressed
Tramadol HclTramadol Hcl42suppressed
FamotidineFamotidine4012
ClopidogrelClopidogrel Bisulfate3913
Memantine HclMemantine Hcl39suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril3811
CarvedilolCarvedilol3814
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide38suppressed
Metoprolol TartrateMetoprolol Tartrate3814
Warfarin SodiumWarfarin Sodium38suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine37suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl37suppressed
EstradiolEstradiol3713
Pravastatin SodiumPravastatin Sodium3713
Zolpidem TartrateZolpidem Tartrate37suppressed
Olmesartan MedoxomilOlmesartan Medoxomil36suppressed
Citalopram HbrCitalopram Hydrobromide34suppressed
LovastatinLovastatin34suppressed
Ondansetron HclOndansetron Hcl32suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3216
MounjaroTirzepatide31suppressed
MirtazapineMirtazapine3012
Alfuzosin Hcl ErAlfuzosin Hcl29suppressed
AtenololAtenolol29suppressed
FenofibrateFenofibrate29suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen28suppressed
Potassium ChloridePotassium Chloride28suppressed
Doxazosin MesylateDoxazosin Mesylate27suppressed
HydrochlorothiazideHydrochlorothiazide2712
PrednisonePrednisone2717
Alendronate SodiumAlendronate Sodium2613
Ipratropium BromideIpratropium Bromide26suppressed
NaproxenNaproxen26suppressed
Ondansetron OdtOndansetron26suppressed
SynthroidLevothyroxine Sodium26suppressed
Venlafaxine Hcl ErVenlafaxine Hcl25suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog2411
OxycontinOxycodone Hcl24suppressed
EszopicloneEszopiclone23suppressed
Morphine Sulfate ErMorphine Sulfate23suppressed
TopiramateTopiramate23suppressed
GlimepirideGlimepiride22suppressed
ModafinilModafinil22suppressed
Promethazine HclPromethazine Hcl22suppressed
Spiriva RespimatTiotropium Bromide22suppressed
Benazepril HclBenazepril Hcl21suppressed
Metformin HclMetformin Hcl21suppressed
ValacyclovirValacyclovir Hcl21suppressed
ClonazepamClonazepam20suppressed
Hydroxyzine HclHydroxyzine Hcl20suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl19suppressed
IrbesartanIrbesartan19suppressed
BuprenorphineBuprenorphine18suppressed
LubiprostoneLubiprostone18suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl18suppressed
PregabalinPregabalin18suppressed
Sumatriptan SuccinateSumatriptan Succinate18suppressed
Testosterone CypionateTestosterone Cypionate18suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid18suppressed
AripiprazoleAripiprazole17suppressed
CephalexinCephalexin1711
Diltiazem HclDiltiazem Hcl17suppressed
FenofibrateFenofibrate Nanocrystallized17suppressed
GlipizideGlipizide17suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic17suppressed
Risedronate SodiumRisedronate Sodium17suppressed
CyclosporineCyclosporine16suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide16suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter16suppressed
ValsartanValsartan16suppressed
Xtampza ErOxycodone Myristate16suppressed
Advair HfaFluticasone Propion/Salmeterol15suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog15suppressed
CalcitriolCalcitriol15suppressed
Propranolol HclPropranolol Hcl15suppressed
Doxycycline MonohydrateDoxycycline Monohydrate14suppressed
JanuviaSitagliptin Phosphate14suppressed
Metoclopramide HclMetoclopramide Hcl14suppressed
Nifedipine ErNifedipine14suppressed
Paroxetine HclParoxetine Hcl14suppressed
AzithromycinAzithromycin1311
Donepezil HclDonepezil Hcl13suppressed
Doxycycline HyclateDoxycycline Hyclate13suppressed
Glipizide ErGlipizide13suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
Diclofenac SodiumDiclofenac Sodium12suppressed
Methadone HclMethadone Hcl12suppressed
PrimidonePrimidone12suppressed
Propranolol Hcl ErPropranolol Hcl12suppressed
RizatriptanRizatriptan Benzoate12suppressed
Solifenacin SuccinateSolifenacin Succinate12suppressed
TrulicityDulaglutide12suppressed
Amlodipine-ValsartanAmlodipine Besylate/Valsartan11suppressed
Betamethasone Diprop AugmentedBetamethasone/Propylene Glyc11suppressed
Bisoprolol FumarateBisoprolol Fumarate11suppressed
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl11suppressed
Calcitonin-SalmonCalcitonin,salmon,synthetic11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
Meclizine HclMeclizine Hcl11suppressed
NystatinNystatin11suppressed

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 $336.29 · 3 records Janssen Biotech, Inc. CARVYKTI, RYBREVANT 3
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