Healthcare provider profile · identity verified

Ritchie Wong, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · CARMICHAEL, CA · NPI 1821054552

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 Ritchie Wong, M.D. received $291.29 in general payments during 2025 across 8 reported records.

Exact Sciences Corporation accounted for 69.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 9 associated products.

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 105 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$291.29

8 reported records · 4 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
Exact Sciences Corporation Unresolved — no canonical attribution shown $201.9169.3%42025
PFIZER INC. Unresolved — no canonical attribution shown $41.1414.1%22025
Lilly USA, LLC Unresolved — no canonical attribution shown $27.689.5%12025
Kowa Pharmaceuticals America, Inc. Unresolved — no canonical attribution shown $20.567.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$291.298

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
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $201.91 4 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $27.68 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $27.68 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $22.52 1 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $22.52 1 2025
Source payment records
ZORYVE
Normalized: zoryve
Drug Kowa Pharmaceuticals America, Inc. $20.56 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $18.62 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $18.62 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $18.62 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

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
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
105 24

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
Rosuvastatin CalciumRosuvastatin Calcium30476
LisinoprilLisinopril23861
HydrochlorothiazideHydrochlorothiazide23767
Amlodipine BesylateAmlodipine Besylate23663
Atorvastatin CalciumAtorvastatin Calcium19454
Levothyroxine SodiumLevothyroxine Sodium17146
Metformin HclMetformin Hcl16442
Losartan PotassiumLosartan Potassium11730
Tamsulosin HclTamsulosin Hcl11628
EliquisApixaban10524
SimvastatinSimvastatin10027
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen9411
Alendronate SodiumAlendronate Sodium8818
NaproxenNaproxen8840
FurosemideFurosemide8217
Pantoprazole SodiumPantoprazole Sodium8122
Potassium ChloridePotassium Chloride7418
CarvedilolCarvedilol7018
GabapentinGabapentin6814
Albuterol Sulfate HfaAlbuterol Sulfate6318
Pioglitazone HclPioglitazone Hcl6216
AllopurinolAllopurinol6017
AlprazolamAlprazolam60suppressed
OmeprazoleOmeprazole5214
Metoprolol SuccinateMetoprolol Succinate5015
Trazodone HclTrazodone Hcl5011
Pravastatin SodiumPravastatin Sodium4513
Metoprolol TartrateMetoprolol Tartrate4315
Fluticasone PropionateFluticasone Propionate4222
Tramadol HclTramadol Hcl4111
Clonidine HclClonidine Hcl38suppressed
Citalopram HbrCitalopram Hydrobromide36suppressed
Zolpidem Tartrate ErZolpidem Tartrate34suppressed
FluocinonideFluocinonide3215
Zolpidem TartrateZolpidem Tartrate29suppressed
ClopidogrelClopidogrel Bisulfate26suppressed
Sertraline HclSertraline Hcl25suppressed
EzetimibeEzetimibe24suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
PrednisonePrednisone24suppressed
LevetiracetamLevetiracetam22suppressed
ClonazepamClonazepam21suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2015
Venlafaxine Hcl ErVenlafaxine Hcl20suppressed
AzithromycinAzithromycin1917
Escitalopram OxalateEscitalopram Oxalate19suppressed
SynthroidLevothyroxine Sodium19suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl18suppressed
VascepaIcosapent Ethyl18suppressed
Warfarin SodiumWarfarin Sodium18suppressed
LorazepamLorazepam17suppressed
Amitriptyline HclAmitriptyline Hcl15suppressed
Tizanidine HclTizanidine Hcl15suppressed
TemazepamTemazepam14suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip13suppressed
IbuprofenIbuprofen13suppressed
AcyclovirAcyclovir12suppressed
Azelastine HclAzelastine Hcl12suppressed
Duloxetine HclDuloxetine Hcl12suppressed
EntrestoSacubitril/Valsartan12suppressed
Felodipine ErFelodipine12suppressed
FenofibrateFenofibrate Nanocrystallized12suppressed
Fluoxetine HclFluoxetine Hcl12suppressed
JanuviaSitagliptin Phosphate12suppressed
MirtazapineMirtazapine12suppressed
Montelukast SodiumMontelukast Sodium12suppressed
SpironolactoneSpironolactone12suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12suppressed
Amiodarone HclAmiodarone Hcl11suppressed
CephalexinCephalexin1111
Ciprofloxacin HclCiprofloxacin Hcl11suppressed
Estradiol-Norethindrone AcetatEstradiol/Norethindrone Acet11suppressed
GlimepirideGlimepiride11suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide11suppressed
LovastatinLovastatin11suppressed
MethocarbamolMethocarbamol11suppressed
OzempicSemaglutide11suppressed
ValacyclovirValacyclovir 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 $291.29 · 8 records Exact Sciences Corporation ABRYSVO, COMIRNATY, MOUNJARO, NURTEC ODT, PAXLOVID, PREVNAR 20, The Cologuard Plus Collection Kit, ZEPBOUND, ZORYVE 1
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