Healthcare provider profile · identity verified

Christopher Michael Walsh, MD

Internal Medicine · ARLINGTON, VA · NPI 1699788190

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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 Calcium751209
Amlodipine BesylateAmlodipine Besylate31693
LisinoprilLisinopril20055
Levothyroxine SodiumLevothyroxine Sodium18948
Losartan PotassiumLosartan Potassium17448
HydrochlorothiazideHydrochlorothiazide13439
Metoprolol SuccinateMetoprolol Succinate13440
Rosuvastatin CalciumRosuvastatin Calcium13139
Tamsulosin HclTamsulosin Hcl12732
Alendronate SodiumAlendronate Sodium11830
Metformin HclMetformin Hcl10329
Escitalopram OxalateEscitalopram Oxalate8023
EliquisApixaban7824
FinasterideFinasteride6819
Fluticasone PropionateFluticasone Propionate6828
EzetimibeEzetimibe6719
SimvastatinSimvastatin6714
RamiprilRamipril6516
Donepezil HclDonepezil Hcl6413
Pantoprazole SodiumPantoprazole Sodium6220
JardianceEmpagliflozin6020
OmeprazoleOmeprazole6016
Montelukast SodiumMontelukast Sodium5912
FamotidineFamotidine5518
AllopurinolAllopurinol5316
SynthroidLevothyroxine Sodium5217
Sertraline HclSertraline Hcl4917
FurosemideFurosemide4614
Metformin Hcl ErMetformin Hcl4413
Trazodone HclTrazodone Hcl4111
Bupropion XlBupropion Hcl40suppressed
Alfuzosin Hcl ErAlfuzosin Hcl3513
MirtazapineMirtazapine34suppressed
Ipratropium BromideIpratropium Bromide32suppressed
ValsartanValsartan3012
Carbidopa-LevodopaCarbidopa/Levodopa29suppressed
ChlorthalidoneChlorthalidone28suppressed
GabapentinGabapentin2811
SpironolactoneSpironolactone28suppressed
Potassium ChloridePotassium Chloride27suppressed
Nebivolol HclNebivolol Hcl26suppressed
Quetiapine FumarateQuetiapine Fumarate26suppressed
OzempicSemaglutide25suppressed
Zolpidem TartrateZolpidem Tartrate2515
ClopidogrelClopidogrel Bisulfate24suppressed
Memantine HclMemantine Hcl24suppressed
Buspirone HclBuspirone Hcl23suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide23suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate22suppressed
Olmesartan MedoxomilOlmesartan Medoxomil22suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid22suppressed
Azelastine HclAzelastine Hcl21suppressed
Albuterol Sulfate HfaAlbuterol Sulfate2011
AtenololAtenolol20suppressed
Clonidine HclClonidine Hcl20suppressed
LumiganBimatoprost20suppressed
Metoprolol TartrateMetoprolol Tartrate19suppressed
ValacyclovirValacyclovir Hcl19suppressed
CarvedilolCarvedilol18suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium18suppressed
FarxigaDapagliflozin Propanediol18suppressed
Pravastatin SodiumPravastatin Sodium18suppressed
Propranolol HclPropranolol Hcl18suppressed
DutasterideDutasteride17suppressed
GlimepirideGlimepiride17suppressed
JanuviaSitagliptin Phosphate17suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog17suppressed
Benazepril HclBenazepril Hcl16suppressed
Doxycycline HyclateDoxycycline Hyclate16suppressed
Hydralazine HclHydralazine Hcl16suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl15suppressed
Enalapril MaleateEnalapril Maleate15suppressed
LidocaineLidocaine15suppressed
LorazepamLorazepam15suppressed
PrednisonePrednisone14suppressed
RisperidoneRisperidone14suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic14suppressed
Acetaminophen-CodeineAcetaminophen With Codeine13suppressed
Dexlansoprazole DrDexlansoprazole13suppressed
Diclofenac SodiumDiclofenac Sodium13suppressed
XareltoRivaroxaban13suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
Dicyclomine HclDicyclomine Hcl12suppressed
MeloxicamMeloxicam12suppressed
NuplazidPimavanserin Tartrate12suppressed
Terazosin HclTerazosin Hcl12suppressed
AnastrozoleAnastrozole11suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog11suppressed
MyrbetriqMirabegron11suppressed
Tamoxifen CitrateTamoxifen Citrate11suppressed
TestosteroneTestosterone11suppressed

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
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