Healthcare provider profile · identity verified

Hillary Diamond, M.D.

Internal Medicine · NORTHPORT, NY · NPI 1902967011

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 Calcium524200
Amlodipine BesylateAmlodipine Besylate359129
Losartan PotassiumLosartan Potassium24480
Metformin HclMetformin Hcl17066
CarvedilolCarvedilol14357
LisinoprilLisinopril14049
Metoprolol SuccinateMetoprolol Succinate12447
Diclofenac SodiumDiclofenac Sodium10952
Albuterol Sulfate HfaAlbuterol Sulfate10837
Rosuvastatin CalciumRosuvastatin Calcium10235
Levothyroxine SodiumLevothyroxine Sodium9630
GabapentinGabapentin9139
HydrochlorothiazideHydrochlorothiazide9133
OmeprazoleOmeprazole8728
JardianceEmpagliflozin8429
Tamsulosin HclTamsulosin Hcl6830
AllopurinolAllopurinol6626
Montelukast SodiumMontelukast Sodium6624
EliquisApixaban6521
FurosemideFurosemide6523
Fluticasone PropionateFluticasone Propionate6237
SimvastatinSimvastatin6123
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav5243
BaclofenBaclofen5121
Metoprolol TartrateMetoprolol Tartrate5121
JanuviaSitagliptin Phosphate4417
Glipizide ErGlipizide4316
Pantoprazole SodiumPantoprazole Sodium4315
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip4225
GlipizideGlipizide4215
GlimepirideGlimepiride4115
Triamcinolone AcetonideTriamcinolone Acetonide4119
ClopidogrelClopidogrel Bisulfate3715
SpironolactoneSpironolactone3714
Alendronate SodiumAlendronate Sodium35suppressed
Hydralazine HclHydralazine Hcl3517
Nifedipine ErNifedipine3514
Potassium ChloridePotassium Chloride3512
Ammonium LactateAmmonium Lactate3411
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate3415
Metformin Hcl ErMetformin Hcl34suppressed
OzempicSemaglutide32suppressed
MeloxicamMeloxicam3114
Oxybutynin Chloride ErOxybutynin Chloride27suppressed
Sertraline HclSertraline Hcl27suppressed
AtenololAtenolol26suppressed
MethylprednisoloneMethylprednisolone2622
HydrocortisoneHydrocortisone2513
Donepezil HclDonepezil Hcl2411
Lantus SolostarInsulin Glargine,hum.Rec.Anlog24suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide23suppressed
Azelastine HclAzelastine Hcl22suppressed
Enalapril MaleateEnalapril Maleate22suppressed
FamotidineFamotidine22suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide22suppressed
Meclizine HclMeclizine Hcl22suppressed
ValsartanValsartan22suppressed
Warfarin SodiumWarfarin Sodium22suppressed
JanumetSitagliptin Phos/Metformin Hcl19suppressed
Novolog FlexpenInsulin Aspart19suppressed
EzetimibeEzetimibe18suppressed
LatanoprostLatanoprost18suppressed
Pravastatin SodiumPravastatin Sodium18suppressed
SynthroidLevothyroxine Sodium16suppressed
Wixela InhubFluticasone Propion/Salmeterol16suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril15suppressed
ColchicineColchicine15suppressed
IbuprofenIbuprofen15suppressed
Pioglitazone HclPioglitazone Hcl15suppressed
ValacyclovirValacyclovir Hcl15suppressed
Amiodarone HclAmiodarone Hcl14suppressed
CiclopiroxCiclopirox Olamine14suppressed
Alcohol Prep PadsAlcohol Antiseptic Pads13suppressed
Bupropion HclBupropion Hcl13suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol13suppressed
Labetalol HclLabetalol Hcl13suppressed
LevetiracetamLevetiracetam13suppressed
LidocaineLidocaine13suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1311
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med12suppressed
Benazepril HclBenazepril Hcl12suppressed
FarxigaDapagliflozin Propanediol12suppressed
FinasterideFinasteride12suppressed
Neomycin-Polymyxin-HydrocortNeomycin/Polymyxin B/Hydrocort12suppressed
RamiprilRamipril12suppressed
Brimonidine TartrateBrimonidine Tartrate11suppressed
Hydroxychloroquine SulfateHydroxychloroquine Sulfate11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride11suppressed

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