Healthcare provider profile · identity verified

Mary H Sherk, MD

Allopathic & Osteopathic Physicians|Family Medicine · LAKE CHARLES, LA · NPI 1326014739

Profile state: payments and partd 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

CMS Open Payments records show Mary H Sherk, MD received $165.35 in general payments during 2025 across 6 reported records.

Gilead Sciences, Inc. accounted for 33.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 5 associated products.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 43 claims for Farxiga by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Symbicort by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$165.35

6 reported records · 5 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $55.6733.7%22025
Inspire Medical Systems, Inc. Unresolved — no canonical attribution shown $35.7421.6%12025
INTUITIVE SURGICAL, INC. Unresolved — no canonical attribution shown $32.6219.7%12025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $26.9716.3%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $14.358.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$165.356

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
INSPIRE
Normalized: inspire
Device Inspire Medical Systems, Inc. $35.74 1 2025
Source payment records
Da Vinci Surgical System
Normalized: da vinci surgical system
Device INTUITIVE SURGICAL, INC. $32.62 1 2025
Source payment records
Epclusa
Normalized: epclusa
Drug Gilead Sciences, Inc. $29.71 1 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $26.97 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $14.35 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
43 15
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS

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
Amlodipine BesylateAmlodipine Besylate627187
GabapentinGabapentin517105
Atorvastatin CalciumAtorvastatin Calcium509158
Levothyroxine SodiumLevothyroxine Sodium31886
Rosuvastatin CalciumRosuvastatin Calcium317103
LisinoprilLisinopril28689
Metoprolol TartrateMetoprolol Tartrate27069
Losartan PotassiumLosartan Potassium25578
Pantoprazole SodiumPantoprazole Sodium24786
Metformin HclMetformin Hcl22668
Cyclobenzaprine HclCyclobenzaprine Hcl20651
Albuterol Sulfate HfaAlbuterol Sulfate20043
HydrochlorothiazideHydrochlorothiazide19658
Potassium ChloridePotassium Chloride19662
FurosemideFurosemide19264
OzempicSemaglutide16633
Tamsulosin HclTamsulosin Hcl15952
Pravastatin SodiumPravastatin Sodium14347
ClopidogrelClopidogrel Bisulfate14143
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide13936
Montelukast SodiumMontelukast Sodium13342
Trazodone HclTrazodone Hcl13238
OmeprazoleOmeprazole12836
CarvedilolCarvedilol12237
Lantus SolostarInsulin Glargine,hum.Rec.Anlog10735
Hydralazine HclHydralazine Hcl10432
Amitriptyline HclAmitriptyline Hcl9429
EliquisApixaban8929
Tizanidine HclTizanidine Hcl8618
Buspirone HclBuspirone Hcl8027
Combivent RespimatIpratropium/Albuterol Sulfate7817
IrbesartanIrbesartan7421
Metoprolol SuccinateMetoprolol Succinate7224
Duloxetine HclDuloxetine Hcl7025
JardianceEmpagliflozin7019
Zolpidem TartrateZolpidem Tartrate68suppressed
Labetalol HclLabetalol Hcl6119
MethocarbamolMethocarbamol6015
IbuprofenIbuprofen5913
Clonidine HclClonidine Hcl5817
EzetimibeEzetimibe5725
Trelegy ElliptaFluticasone/Umeclidin/Vilanter5417
Fluticasone PropionateFluticasone Propionate5216
Esomeprazole MagnesiumEsomeprazole Magnesium5019
MounjaroTirzepatide49suppressed
FamotidineFamotidine4815
MeloxicamMeloxicam4816
PregabalinPregabalin47suppressed
SpironolactoneSpironolactone4718
Nifedipine ErNifedipine4512
FarxigaDapagliflozin Propanediol4315
Novolog FlexpenInsulin Aspart4013
Alendronate SodiumAlendronate Sodium3911
BaclofenBaclofen39suppressed
Enalapril MaleateEnalapril Maleate38suppressed
AtenololAtenolol37suppressed
LevetiracetamLevetiracetam37suppressed
Sertraline HclSertraline Hcl3715
Escitalopram OxalateEscitalopram Oxalate3611
Diclofenac SodiumDiclofenac Sodium35suppressed
Droplet Pen NeedlePen Needle, Diabetic3516
Meclizine HclMeclizine Hcl35suppressed
Dropsafe Prep PadsAlcohol Antiseptic Pads3312
AllopurinolAllopurinol3211
Hydroxyzine PamoateHydroxyzine Pamoate31suppressed
Fluoxetine HclFluoxetine Hcl30suppressed
MirtazapineMirtazapine30suppressed
JanuviaSitagliptin Phosphate29suppressed
NaproxenNaproxen29suppressed
Citalopram HbrCitalopram Hydrobromide28suppressed
Liothyronine SodiumLiothyronine Sodium28suppressed
Bupropion Hcl SrBupropion Hcl2711
Bupropion XlBupropion Hcl2614
GlimepirideGlimepiride26suppressed
Ondansetron HclOndansetron Hcl26suppressed
SymbicortBudesonide/Formoterol Fumarate26suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2613
Isosorbide Mononitrate ErIsosorbide Mononitrate25suppressed
TrulicityDulaglutide25suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2424
FluconazoleFluconazole2415
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide24suppressed
LovastatinLovastatin24suppressed
GlipizideGlipizide23suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic23suppressed
FenofibrateFenofibrate Nanocrystallized22suppressed
Paroxetine HclParoxetine Hcl22suppressed
PrednisonePrednisone21suppressed
Ropinirole HclRopinirole Hcl21suppressed
Breo ElliptaFluticasone/Vilanterol20suppressed
ColchicineColchicine20suppressed
Repatha SureclickEvolocumab20suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic20suppressed
VascepaIcosapent Ethyl20suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol19suppressed
Hydroxyzine HclHydroxyzine Hcl19suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic19suppressed
XareltoRivaroxaban19suppressed
Benazepril HclBenazepril Hcl18suppressed
EstradiolEstradiol18suppressed
LinzessLinaclotide18suppressed
Oxybutynin ChlorideOxybutynin Chloride18suppressed
Solifenacin SuccinateSolifenacin Succinate18suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim18suppressed
TradjentaLinagliptin18suppressed
Doxepin HclDoxepin Hcl17suppressed
GlyburideGlyburide17suppressed
TopiramateTopiramate17suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip15suppressed
Divalproex SodiumDivalproex Sodium15suppressed
EntrestoSacubitril/Valsartan15suppressed
DutasterideDutasteride14suppressed
FinasterideFinasteride14suppressed
MyrbetriqMirabegron14suppressed
NabumetoneNabumetone14suppressed
ClonazepamClonazepam13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
LantusInsulin Glargine,hum.Rec.Anlog12suppressed
OtezlaApremilast12suppressed
Techlite Pen NeedlePen Needle, Diabetic12suppressed
Tolterodine Tartrate ErTolterodine Tartrate12suppressed
TorsemideTorsemide12suppressed
BumetanideBumetanide11suppressed
ChlorthalidoneChlorthalidone11suppressed
ClotrimazoleClotrimazole11suppressed
DilantinPhenytoin Sodium Extended11suppressed
Levemir FlexpenInsulin Detemir11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
TemazepamTemazepam11suppressed

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 $165.35 · 6 records Gilead Sciences, Inc. BREZTRI, CAPLYTA, Da Vinci Surgical System, Epclusa, INSPIRE 2
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