Healthcare provider profile · identity verified

Grace Tyndall, MD

Internal Medicine · GREENLAWN, NY · NPI 1063704880

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 Calcium454151
Rosuvastatin CalciumRosuvastatin Calcium390150
Amlodipine BesylateAmlodipine Besylate334117
Losartan PotassiumLosartan Potassium23080
Levothyroxine SodiumLevothyroxine Sodium21883
Metoprolol SuccinateMetoprolol Succinate17153
HydrochlorothiazideHydrochlorothiazide14847
AlprazolamAlprazolam14256
Zolpidem TartrateZolpidem Tartrate13937
Sertraline HclSertraline Hcl10537
SimvastatinSimvastatin10038
OmeprazoleOmeprazole7328
Escitalopram OxalateEscitalopram Oxalate7228
ValsartanValsartan7122
AtenololAtenolol6224
Pantoprazole SodiumPantoprazole Sodium5425
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst4939
Albuterol Sulfate HfaAlbuterol Sulfate4732
SynthroidLevothyroxine Sodium4715
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid4111
Montelukast SodiumMontelukast Sodium3915
Metoprolol TartrateMetoprolol Tartrate3612
Hydroxyzine HclHydroxyzine Hcl3415
LisinoprilLisinopril3414
Fluticasone PropionateFluticasone Propionate3320
MethylprednisoloneMethylprednisolone3230
EzetimibeEzetimibe2914
FamotidineFamotidine2914
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide29suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril26suppressed
Potassium ChloridePotassium Chloride26suppressed
ClonazepamClonazepam25suppressed
GabapentinGabapentin2512
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide25suppressed
Pravastatin SodiumPravastatin Sodium24suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide23suppressed
Fluoxetine HclFluoxetine Hcl22suppressed
ChlorthalidoneChlorthalidone21suppressed
Doxycycline HyclateDoxycycline Hyclate2020
Metformin Hcl ErMetformin Hcl20suppressed
Trazodone HclTrazodone Hcl19suppressed
Enalapril MaleateEnalapril Maleate18suppressed
FurosemideFurosemide18suppressed
CarvedilolCarvedilol17suppressed
GlimepirideGlimepiride17suppressed
Metformin HclMetformin Hcl17suppressed
ValacyclovirValacyclovir Hcl17suppressed
Benazepril HclBenazepril Hcl16suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride16suppressed
Venlafaxine Hcl ErVenlafaxine Hcl16suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl14suppressed
RamiprilRamipril14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1412
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1313
Citalopram HbrCitalopram Hydrobromide13suppressed
PaxlovidNirmatrelvir/Ritonavir1312
Tamsulosin HclTamsulosin Hcl13suppressed
IrbesartanIrbesartan12suppressed
EliquisApixaban11suppressed
MeloxicamMeloxicam11suppressed
Zolpidem Tartrate ErZolpidem Tartrate11suppressed

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