Healthcare provider profile · identity verified

Anna Ham, DO

Internal Medicine · CAMBRIDGE, MA · NPI 1740355981

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 Calcium20161
Amlodipine BesylateAmlodipine Besylate15048
Metformin HclMetformin Hcl13741
LisinoprilLisinopril13244
OmeprazoleOmeprazole13049
Metoprolol SuccinateMetoprolol Succinate11534
Levothyroxine SodiumLevothyroxine Sodium9530
Losartan PotassiumLosartan Potassium9428
SimvastatinSimvastatin7521
JardianceEmpagliflozin7018
TrulicityDulaglutide6412
HydrochlorothiazideHydrochlorothiazide5523
Pravastatin SodiumPravastatin Sodium5421
EliquisApixaban51suppressed
GabapentinGabapentin4619
Metformin Hcl ErMetformin Hcl4414
Albuterol Sulfate HfaAlbuterol Sulfate4322
Sertraline HclSertraline Hcl4312
Trazodone HclTrazodone Hcl40suppressed
FurosemideFurosemide39suppressed
AtenololAtenolol38suppressed
Diclofenac SodiumDiclofenac Sodium3718
MounjaroTirzepatide37suppressed
Oxycodone HclOxycodone Hcl36suppressed
IbuprofenIbuprofen3518
LorazepamLorazepam31suppressed
JanuviaSitagliptin Phosphate30suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3012
FamotidineFamotidine2914
SynjardyEmpagliflozin/Metformin Hcl29suppressed
PregabalinPregabalin28suppressed
Pantoprazole SodiumPantoprazole Sodium26suppressed
Fluoxetine HclFluoxetine Hcl24suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen23suppressed
Glipizide ErGlipizide22suppressed
Duloxetine HclDuloxetine Hcl20suppressed
Citalopram HbrCitalopram Hydrobromide19suppressed
EzetimibeEzetimibe19suppressed
Tramadol HclTramadol Hcl19suppressed
MirtazapineMirtazapine18suppressed
Quetiapine FumarateQuetiapine Fumarate18suppressed
Zolpidem TartrateZolpidem Tartrate18suppressed
Labetalol HclLabetalol Hcl17suppressed
Unifine PentipsPen Needle, Diabetic17suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium16suppressed
Tresiba Flextouch U-200Insulin Degludec16suppressed
Alendronate SodiumAlendronate Sodium15suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide15suppressed
Oxybutynin Chloride ErOxybutynin Chloride13suppressed
Propranolol HclPropranolol Hcl13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
Ammonium LactateAmmonium Lactate12suppressed
FentanylFentanyl12suppressed
Fluticasone PropionateFluticasone Propionate12suppressed
SpironolactoneSpironolactone12suppressed
TorsemideTorsemide12suppressed
Ventolin HfaAlbuterol Sulfate12suppressed
ClopidogrelClopidogrel Bisulfate11suppressed
DiazepamDiazepam11suppressed
FinasterideFinasteride11suppressed
Incruse ElliptaUmeclidinium Bromide11suppressed
MetaxaloneMetaxalone11suppressed
Nifedipine ErNifedipine11suppressed
NystatinNystatin11suppressed
Rosuvastatin CalciumRosuvastatin Calcium11suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic11suppressed

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