Healthcare provider profile · identity verified

James C Liu, M.D.

Internal Medicine · SOMERVILLE, MA · NPI 1114983533

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
LisinoprilLisinopril26664
Atorvastatin CalciumAtorvastatin Calcium23255
Metoprolol SuccinateMetoprolol Succinate11628
Amlodipine BesylateAmlodipine Besylate11530
HydrochlorothiazideHydrochlorothiazide10227
SimvastatinSimvastatin8223
FinasterideFinasteride7715
Tamsulosin HclTamsulosin Hcl7717
OmeprazoleOmeprazole7421
EliquisApixaban6718
Losartan PotassiumLosartan Potassium5714
Metformin HclMetformin Hcl5515
Levothyroxine SodiumLevothyroxine Sodium4911
Montelukast SodiumMontelukast Sodium44suppressed
Alfuzosin Hcl ErAlfuzosin Hcl40suppressed
AllopurinolAllopurinol4011
FurosemideFurosemide39suppressed
Trazodone HclTrazodone Hcl3313
Rosuvastatin CalciumRosuvastatin Calcium32suppressed
Zolpidem TartrateZolpidem Tartrate31suppressed
Sertraline HclSertraline Hcl30suppressed
Doxazosin MesylateDoxazosin Mesylate29suppressed
CiclopiroxCiclopirox Olamine28suppressed
ClopidogrelClopidogrel Bisulfate27suppressed
LorazepamLorazepam27suppressed
SynthroidLevothyroxine Sodium27suppressed
MyrbetriqMirabegron25suppressed
AtenololAtenolol24suppressed
FentanylFentanyl24suppressed
Oxycodone HclOxycodone Hcl24suppressed
Labetalol HclLabetalol Hcl22suppressed
Midodrine HclMidodrine Hcl22suppressed
TadalafilTadalafil20suppressed
FamotidineFamotidine19suppressed
Fluticasone PropionateFluticasone Propionate19suppressed
Tolterodine TartrateTolterodine Tartrate18suppressed
ValsartanValsartan18suppressed
Albuterol Sulfate HfaAlbuterol Sulfate17suppressed
ChlorthalidoneChlorthalidone15suppressed
AmoxicillinAmoxicillin14suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide14suppressed
PaxlovidNirmatrelvir/Ritonavir1414
ClonazepamClonazepam13suppressed
Enalapril MaleateEnalapril Maleate13suppressed
Fluoxetine HclFluoxetine Hcl13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
Donepezil HclDonepezil Hcl12suppressed
Nucynta ErTapentadol Hcl12suppressed
Pravastatin SodiumPravastatin Sodium12suppressed
Bupropion XlBupropion Hcl11suppressed
Doxepin HclDoxepin Hcl11suppressed
GabapentinGabapentin11suppressed
Nortriptyline HclNortriptyline 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
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