Healthcare provider profile · identity verified

Michael C Ong, MD

Allopathic & Osteopathic Physicians|Internal Medicine · VANDERGRIFT, PA · NPI 1639162969

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 Michael C Ong, MD received $686.38 in general payments during 2025 across 40 reported records.

GlaxoSmithKline, LLC. accounted for 39.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 15 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Eliquis, Prolia, Relistor, Trelegy Ellipta.

Amgen 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 PROLIA as an associated drug or biological on 20867 records involving 11744 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Prolia by this doctor in 2024.

E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 234 claims for Eliquis by this doctor in 2024.

GlaxoSmithKline, 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 TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 161 claims for Trelegy Ellipta by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 234 claims for Eliquis by this doctor in 2024.

PFIZER 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Paxlovid by this doctor in 2024.

Salix Pharmaceuticals, a division of Bausch Health US, 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 RELISTOR as an associated drug or biological on 23206 records involving 6246 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Relistor by this doctor in 2024.

Salix Pharmaceuticals, a division of Bausch Health US, 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 TRULANCE as an associated drug or biological on 2652 records involving 1501 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Trulance by this doctor in 2024.

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

Payment overview · 2025

General Payments

$686.38

40 reported records · 7 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
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $271.3339.5%172025
PFIZER INC. Unresolved — no canonical attribution shown $189.3627.6%102025
Amgen Inc. Unresolved — no canonical attribution shown $141.4220.6%82025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $34.065.0%22025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $20.223.0%12025
Kowa Pharmaceuticals America, Inc. Unresolved — no canonical attribution shown $15.732.3%12025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $14.262.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$666.1639
Education$20.221

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
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $271.33 17 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug E.R. Squibb & Sons, L.L.C., PFIZER INC. $167.60 9 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $166.92 9 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $72.79 4 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $72.79 4 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $68.63 4 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $68.63 4 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $22.44 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $22.44 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $22.44 1 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $20.22 1 2025
Source payment records
CAMZYOS
Normalized: camzyos
Drug E.R. Squibb & Sons, L.L.C. $16.69 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $16.69 1 2025
Source payment records
ZORYVE
Normalized: zoryve
Drug Kowa Pharmaceuticals America, Inc. $15.73 1 2025
Source payment records
RELISTOR
Normalized: relistor
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.26 1 2025
Source payment records
  • 2025-10-08 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $14.26 · Open Payments source

* 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
ELIQUIS
eliquis
2025 Eliquis 2024 234 exact normalized Medicare Part D
PROLIA
prolia
2025 Prolia 2024 23 exact normalized Medicare Part D
RELISTOR
relistor
2025 Relistor 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 161 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
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 PROLIA
open payments reported associated product
CMS Open Payments — General Payments
20867 supporting records · 11744 recipient NPIs · example record 1226874448
Prolia · 2024
Exact normalized brand match · 1 Part D row
23 17
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
234 61
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
161 42
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
234 61
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
22 22
Salix Pharmaceuticals, a division of Bausch Health US, LLC
Exact reporting entity; no affiliate inference
2025 RELISTOR
open payments reported associated product
CMS Open Payments — General Payments
23206 supporting records · 6246 recipient NPIs · example record 1231775437
Relistor · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC
Exact reporting entity; no affiliate inference
2025 TRULANCE
open payments reported associated product
CMS Open Payments — General Payments
2652 supporting records · 1501 recipient NPIs · example record 1231775445
Trulance · 2024
Exact normalized brand match · 1 Part D row
11 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
Amlodipine BesylateAmlodipine Besylate932287
Atorvastatin CalciumAtorvastatin Calcium865295
Levothyroxine SodiumLevothyroxine Sodium616184
Pantoprazole SodiumPantoprazole Sodium608204
Metoprolol SuccinateMetoprolol Succinate573172
Rosuvastatin CalciumRosuvastatin Calcium481178
Losartan PotassiumLosartan Potassium480157
GabapentinGabapentin425122
LisinoprilLisinopril397131
Metoprolol TartrateMetoprolol Tartrate388116
OmeprazoleOmeprazole368116
Metformin HclMetformin Hcl332123
SimvastatinSimvastatin27691
FurosemideFurosemide27584
HydrochlorothiazideHydrochlorothiazide26293
Tamsulosin HclTamsulosin Hcl24692
Pravastatin SodiumPravastatin Sodium24576
EliquisApixaban23461
FamotidineFamotidine22466
MeloxicamMeloxicam21985
Sertraline HclSertraline Hcl21967
ValsartanValsartan21878
AllopurinolAllopurinol18858
Trazodone HclTrazodone Hcl18653
EzetimibeEzetimibe18259
Potassium ChloridePotassium Chloride17250
Hydralazine HclHydralazine Hcl16950
ClopidogrelClopidogrel Bisulfate16652
Montelukast SodiumMontelukast Sodium16355
Trelegy ElliptaFluticasone/Umeclidin/Vilanter16142
Fluticasone PropionateFluticasone Propionate14965
Glipizide ErGlipizide14937
OzempicSemaglutide14938
Albuterol Sulfate HfaAlbuterol Sulfate13854
Metformin Hcl ErMetformin Hcl13446
Escitalopram OxalateEscitalopram Oxalate13040
Duloxetine HclDuloxetine Hcl12840
Labetalol HclLabetalol Hcl12634
Alendronate SodiumAlendronate Sodium12342
GlimepirideGlimepiride12228
FinasterideFinasteride12143
XareltoRivaroxaban11424
Azelastine HclAzelastine Hcl10845
AzithromycinAzithromycin10887
MethylprednisoloneMethylprednisolone10884
Donepezil HclDonepezil Hcl10323
JardianceEmpagliflozin10126
MounjaroTirzepatide9918
PrednisonePrednisone9876
AlprazolamAlprazolam9728
Diltiazem 24hr Er (Cd)Diltiazem Hcl9631
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide9530
CarvedilolCarvedilol9328
Warfarin SodiumWarfarin Sodium8920
TrulicityDulaglutide8216
CelecoxibCelecoxib7727
ClonazepamClonazepam7716
IrbesartanIrbesartan7626
Isosorbide Mononitrate ErIsosorbide Mononitrate7516
Buspirone HclBuspirone Hcl7326
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide7224
SynthroidLevothyroxine Sodium7225
Tramadol HclTramadol Hcl7225
Breo ElliptaFluticasone/Vilanterol7115
AtenololAtenolol6327
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride6323
CephalexinCephalexin6046
IbuprofenIbuprofen5834
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters5714
MyrbetriqMirabegron5614
PregabalinPregabalin5612
Pramipexole DihydrochloridePramipexole Di-Hcl5517
Fluticasone-SalmeterolFluticasone Propion/Salmeterol5220
GlipizideGlipizide5217
SpironolactoneSpironolactone5220
TopiramateTopiramate5215
Meclizine HclMeclizine Hcl5129
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide5122
FenofibrateFenofibrate Nanocrystallized4917
Tizanidine HclTizanidine Hcl4931
Ciprofloxacin HclCiprofloxacin Hcl4838
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip4836
GlyxambiEmpagliflozin/Linagliptin4811
Oxybutynin ChlorideOxybutynin Chloride4816
Paroxetine HclParoxetine Hcl4714
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim4741
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril4619
Triamcinolone AcetonideTriamcinolone Acetonide4634
Fluoxetine HclFluoxetine Hcl4414
TradjentaLinagliptin4213
Cyclobenzaprine HclCyclobenzaprine Hcl4117
RamiprilRamipril4114
Clonidine HclClonidine Hcl40suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium4014
SucralfateSucralfate3912
Doxycycline HyclateDoxycycline Hyclate3833
JanuviaSitagliptin Phosphate38suppressed
Ondansetron HclOndansetron Hcl3721
FarxigaDapagliflozin Propanediol3612
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3611
Nebivolol HclNebivolol Hcl36suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3529
MirtazapineMirtazapine3514
Ventolin HfaAlbuterol Sulfate35suppressed
Zolpidem TartrateZolpidem Tartrate35suppressed
Pitavastatin CalciumPitavastatin Calcium34suppressed
BumetanideBumetanide3316
Citalopram HbrCitalopram Hydrobromide3314
Ropinirole HclRopinirole Hcl33suppressed
IbuIbuprofen3220
Memantine HclMemantine Hcl32suppressed
Bupropion Hcl SrBupropion Hcl3111
LorazepamLorazepam3123
NitroglycerinNitroglycerin3116
Oxybutynin Chloride ErOxybutynin Chloride31suppressed
Hydroxyzine HclHydroxyzine Hcl3020
Breztri AerosphereBudesonide/Glycopyr/Formoterol29suppressed
LactuloseLactulose2718
LinzessLinaclotide2711
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2724
PhenobarbitalPhenobarbital26suppressed
DutasterideDutasteride24suppressed
LevetiracetamLevetiracetam24suppressed
AmoxicillinAmoxicillin2320
CefuroximeCefuroxime Axetil2320
ProliaDenosumab2317
RybelsusSemaglutide23suppressed
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med22suppressed
PaxlovidNirmatrelvir/Ritonavir2222
TemazepamTemazepam22suppressed
JanumetSitagliptin Phos/Metformin Hcl21suppressed
Bupropion XlBupropion Hcl20suppressed
Novolog FlexpenInsulin Aspart20suppressed
Venlafaxine HclVenlafaxine Hcl20suppressed
Amlodipine-ValsartanAmlodipine Besylate/Valsartan19suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate19suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide19suppressed
Ranolazine ErRanolazine19suppressed
Tresiba Flextouch U-100Insulin Degludec19suppressed
Diclofenac SodiumDiclofenac Sodium1813
Midodrine HclMidodrine Hcl18suppressed
Propranolol HclPropranolol Hcl18suppressed
Raloxifene HclRaloxifene Hcl18suppressed
Tolterodine Tartrate ErTolterodine Tartrate18suppressed
Doxazosin MesylateDoxazosin Mesylate17suppressed
FluconazoleFluconazole1714
SilodosinSilodosin17suppressed
JantovenWarfarin Sodium16suppressed
Klor-Con M10Potassium Chloride16suppressed
LansoprazoleLansoprazole16suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic16suppressed
Olmesartan MedoxomilOlmesartan Medoxomil16suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid16suppressed
EntrestoSacubitril/Valsartan15suppressed
Tresiba Flextouch U-200Insulin Degludec15suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic15suppressed
Varenicline TartrateVarenicline Tartrate15suppressed
Enalapril MaleateEnalapril Maleate14suppressed
FebuxostatFebuxostat14suppressed
NystatinNystatin1412
RepaglinideRepaglinide14suppressed
Repatha SureclickEvolocumab14suppressed
AcarboseAcarbose13suppressed
BaclofenBaclofen13suppressed
Clindamycin PhosphateClindamycin Phosphate13suppressed
Colesevelam HclColesevelam Hcl13suppressed
Dicyclomine HclDicyclomine Hcl13suppressed
Diltiazem 12hr ErDiltiazem Hcl13suppressed
FenofibrateFenofibrate13suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide13suppressed
RelistorMethylnaltrexone Bromide13suppressed
TorsemideTorsemide13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)12suppressed
Dutasteride-TamsulosinDutasteride/Tamsulosin Hcl12suppressed
Janumet XrSitagliptin Phos/Metformin Hcl12suppressed
LamotrigineLamotrigine12suppressed
NaproxenNaproxen12suppressed
Sumatriptan SuccinateSumatriptan Succinate12suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog12suppressed
Unifine PentipsPen Needle, Diabetic12suppressed
Vancomycin HclVancomycin Hcl12suppressed
Alfuzosin Hcl ErAlfuzosin Hcl11suppressed
DapagliflozinDapagliflozin Propanediol11suppressed
LacosamideLacosamide11suppressed
MinoxidilMinoxidil11suppressed
Mometasone FuroateMometasone Furoate11suppressed
Tolterodine TartrateTolterodine Tartrate11suppressed
TrulancePlecanatide11suppressed

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 $686.38 · 40 records GlaxoSmithKline, LLC. ABRYSVO, CAMZYOS, COMIRNATY, ELIQUIS, EVENITY, Kerendia, NURTEC ODT, OTEZLA, PREVNAR 20, PROLIA, RELISTOR, REPATHA, TRELEGY ELLIPTA, ZAVZPRET, ZORYVE 7
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