Healthcare provider profile · identity verified

Mack Lee Sullivan, M.D.

Internal Medicine · EASTCHESTER, NY · NPI 1881616068

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
PrednisonePrednisone219128
AlprazolamAlprazolam10925
Amlodipine BesylateAmlodipine Besylate9226
LisinoprilLisinopril9221
Ciprofloxacin HclCiprofloxacin Hcl8659
Metformin HclMetformin Hcl8424
Atorvastatin CalciumAtorvastatin Calcium7219
HydrochlorothiazideHydrochlorothiazide6818
OzempicSemaglutide63suppressed
CelecoxibCelecoxib6218
ClarithromycinClarithromycin5947
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5628
Metoprolol SuccinateMetoprolol Succinate5117
Escitalopram OxalateEscitalopram Oxalate4713
Zolpidem TartrateZolpidem Tartrate38suppressed
DiazepamDiazepam3722
Rosuvastatin CalciumRosuvastatin Calcium36suppressed
Levothyroxine SodiumLevothyroxine Sodium3412
Losartan PotassiumLosartan Potassium34suppressed
GabapentinGabapentin3311
SimvastatinSimvastatin33suppressed
Tamsulosin HclTamsulosin Hcl33suppressed
Pantoprazole SodiumPantoprazole Sodium3211
Albuterol Sulfate HfaAlbuterol Sulfate31suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip3114
EliquisApixaban31suppressed
LorazepamLorazepam28suppressed
ClonazepamClonazepam27suppressed
OmeprazoleOmeprazole27suppressed
Nifedipine ErNifedipine26suppressed
Metoprolol TartrateMetoprolol Tartrate25suppressed
CarvedilolCarvedilol23suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2119
AzithromycinAzithromycin2119
PregabalinPregabalin20suppressed
Donepezil HclDonepezil Hcl18suppressed
MounjaroTirzepatide18suppressed
Testosterone CypionateTestosterone Cypionate18suppressed
Armour ThyroidThyroid,pork17suppressed
Duloxetine HclDuloxetine Hcl17suppressed
EntrestoSacubitril/Valsartan17suppressed
MethylprednisoloneMethylprednisolone1713
Quetiapine FumarateQuetiapine Fumarate17suppressed
LevofloxacinLevofloxacin1613
Tobramycin-DexamethasoneTobramycin/Dexamethasone1613
JanumetSitagliptin Phos/Metformin Hcl15suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1515
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1512
Enalapril MaleateEnalapril Maleate14suppressed
MetronidazoleMetronidazole1413
Sertraline HclSertraline Hcl14suppressed
DutasterideDutasteride13suppressed
TradjentaLinagliptin13suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide12suppressed
MeloxicamMeloxicam12suppressed
Montelukast SodiumMontelukast Sodium12suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter12suppressed
ValacyclovirValacyclovir Hcl12suppressed
ChlorthalidoneChlorthalidone11suppressed
Humulin R U-500 KwikpenInsulin Regular, Human11suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide11suppressed
NexiumEsomeprazole Magnesium11suppressed
Sildenafil CitrateSildenafil Citrate11suppressed

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