Healthcare provider profile · identity verified

Paul A Sack, M.D.

Endocrinology · BALTIMORE, MD · NPI 1598707606

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
Levothyroxine SodiumLevothyroxine Sodium401110
MounjaroTirzepatide26646
OzempicSemaglutide21261
Atorvastatin CalciumAtorvastatin Calcium19163
TrulicityDulaglutide17249
Metformin HclMetformin Hcl16953
Rosuvastatin CalciumRosuvastatin Calcium12743
Metformin Hcl ErMetformin Hcl12646
Nano 2nd Gen Pen NeedlePen Needle, Diabetic10949
JardianceEmpagliflozin9329
Amlodipine BesylateAmlodipine Besylate9030
Pioglitazone HclPioglitazone Hcl8827
Tresiba Flextouch U-200Insulin Degludec8327
Losartan PotassiumLosartan Potassium8227
LisinoprilLisinopril8028
Novolog FlexpenInsulin Aspart7429
Tresiba Flextouch U-100Insulin Degludec6722
SynthroidLevothyroxine Sodium6622
GlimepirideGlimepiride6219
EzetimibeEzetimibe5818
HydrochlorothiazideHydrochlorothiazide5820
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5527
Synjardy XrEmpagliflozin/Metformin Hcl5514
Humalog Kwikpen U-100Insulin Lispro5426
Xigduo XrDapaglifloz Propaned/Metformin52suppressed
Soliqua 100-33Insulin Glargine/Lixisenatide4813
GabapentinGabapentin4013
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/74015
MethimazoleMethimazole3811
Xultophy 100-3.6Insulin Degludec/Liraglutide37suppressed
HumalogInsulin Lispro3614
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic3514
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog3419
FarxigaDapagliflozin Propanediol34suppressed
NovologInsulin Aspart34suppressed
SpironolactoneSpironolactone3213
Fiasp FlextouchInsulin Aspart (Niacinamide)3115
PregabalinPregabalin31suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog30suppressed
FenofibrateFenofibrate Nanocrystallized28suppressed
Pantoprazole SodiumPantoprazole Sodium28suppressed
Alendronate SodiumAlendronate Sodium2711
FenofibrateFenofibrate,micronized27suppressed
Testosterone CypionateTestosterone Cypionate26suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro25suppressed
TestosteroneTestosterone25suppressed
ClopidogrelClopidogrel Bisulfate24suppressed
JanuviaSitagliptin Phosphate23suppressed
Metoprolol SuccinateMetoprolol Succinate23suppressed
Metoprolol TartrateMetoprolol Tartrate22suppressed
Armour ThyroidThyroid,pork21suppressed
Repatha SureclickEvolocumab20suppressed
SimvastatinSimvastatin20suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic2012
NexletolBempedoic Acid19suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic19suppressed
CarvedilolCarvedilol17suppressed
OmeprazoleOmeprazole17suppressed
Glipizide ErGlipizide16suppressed
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog16suppressed
AtenololAtenolol15suppressed
Bydureon BciseExenatide Microspheres15suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
Oxycodone HclOxycodone Hcl15suppressed
RamiprilRamipril15suppressed
IrbesartanIrbesartan14suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
Potassium ChloridePotassium Chloride13suppressed
TelmisartanTelmisartan13suppressed
Unifine PentipsPen Needle, Diabetic13suppressed
EliquisApixaban12suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium12suppressed
FurosemideFurosemide12suppressed
Victoza 3-PakLiraglutide12suppressed
AllopurinolAllopurinol11suppressed
Escitalopram OxalateEscitalopram Oxalate11suppressed
Janumet XrSitagliptin Phos/Metformin Hcl11suppressed
TresibaInsulin Degludec11suppressed

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