Healthcare provider profile · identity verified

Stephen Stack, M.D.

Allopathic & Osteopathic Physicians|Family Medicine · REYNOLDSBURG, OH · NPI 1316985146

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 Stephen Stack, M.D. received $1,736.37 in general payments during 2025 across 89 reported records.

Novo Nordisk Inc accounted for 17.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 33 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga, Jardiance, Mounjaro, Ozempic.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 22 claims for Synthroid 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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 54 claims for Farxiga by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 87 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 87 claims for Jardiance by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Mounjaro by this doctor in 2024.

Lilly USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Trulicity by this doctor in 2024.

Novo Nordisk Inc reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 102 claims for Ozempic by this doctor in 2024.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 63 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,736.37

89 reported records · 23 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
Novo Nordisk Inc Unresolved — no canonical attribution shown $310.3217.9%182025
Lilly USA, LLC Unresolved — no canonical attribution shown $241.0513.9%72025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $229.9613.2%132025
PFIZER INC. Unresolved — no canonical attribution shown $163.039.4%82025
Amgen Inc. Unresolved — no canonical attribution shown $83.814.8%52025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $82.594.8%52025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $82.324.7%32025
ABBVIE INC. Unresolved — no canonical attribution shown $76.764.4%42025
Exact Sciences Corporation Unresolved — no canonical attribution shown $66.313.8%42025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $45.962.6%22025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $44.392.6%22025
Optinose US, Inc. Unresolved — no canonical attribution shown $42.672.5%22025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $36.372.1%22025
SHIELD THERAPEUTICS INC Unresolved — no canonical attribution shown $35.702.1%22025
Corcept Therapeutics Unresolved — no canonical attribution shown $34.932.0%22025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $31.931.8%22025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $28.781.7%22025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $21.081.2%12025
Bavarian Nordic A/S Unresolved — no canonical attribution shown $17.021.0%12025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $16.290.9%12025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $15.870.9%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $14.900.9%12025
Dexcom, Inc. Unresolved — no canonical attribution shown $14.330.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,704.1088
Education$32.271

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
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $187.24 11 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $163.56 3 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $125.15 6 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $123.45 6 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $123.08 7 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $116.52 7 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $105.03 5 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $105.03 5 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $104.81 7 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $83.81 5 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $82.59 5 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $82.32 3 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $66.31 4 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $45.12 2 2025
Source payment records
Xhance
Normalized: xhance
Drug Optinose US, Inc. $42.67 2 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $40.04 2 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $36.72 2 2025
Source payment records
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $36.37 2 2025
Source payment records
ACCRUFER
Normalized: accrufer
Drug SHIELD THERAPEUTICS INC $35.70 2 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $34.93 2 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $31.93 2 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $31.71 2 2025
Source payment records
GEMTESA
Normalized: gemtesa
Drug Sumitomo Pharma America, Inc. $28.78 2 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $26.29 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $26.29 1 2025
Source payment records
GVOKE HYPOPEN
Normalized: gvoke hypopen
Drug Xeris Pharmaceuticals, Inc. $21.08 1 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $17.73 1 2025
Source payment records
Vivotif
Normalized: vivotif
Drug Bavarian Nordic A/S $17.02 1 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $16.29 1 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $15.87 1 2025
Source payment records
  • 2025-03-28 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $15.87 · Open Payments source
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $14.90 1 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $14.90 1 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $14.33 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
FARXIGA
farxiga
2025 Farxiga 2024 54 exact normalized Medicare Part D
JARDIANCE
jardiance
2025 Jardiance 2024 87 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 36
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 102 exact normalized Medicare Part D

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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
22 suppressed by CMS
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
54 13
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
87 20
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
87 20
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
36 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
17 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
102 19
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
63 18

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 Calcium658175
Amlodipine BesylateAmlodipine Besylate619158
Rosuvastatin CalciumRosuvastatin Calcium24168
Pantoprazole SodiumPantoprazole Sodium21154
GabapentinGabapentin20855
Levothyroxine SodiumLevothyroxine Sodium20646
Metoprolol SuccinateMetoprolol Succinate18852
HydrochlorothiazideHydrochlorothiazide17048
LisinoprilLisinopril16852
Losartan PotassiumLosartan Potassium16547
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide15140
Metformin Hcl ErMetformin Hcl15044
Tamsulosin HclTamsulosin Hcl13937
OzempicSemaglutide10219
SimvastatinSimvastatin10128
CarvedilolCarvedilol10027
FurosemideFurosemide9629
Potassium ChloridePotassium Chloride9426
Albuterol Sulfate HfaAlbuterol Sulfate9232
AllopurinolAllopurinol9223
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen9214
Escitalopram OxalateEscitalopram Oxalate9127
Metformin HclMetformin Hcl9025
Tramadol HclTramadol Hcl9020
ClopidogrelClopidogrel Bisulfate8819
JardianceEmpagliflozin8720
Fluticasone PropionateFluticasone Propionate8630
Sertraline HclSertraline Hcl8613
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide8326
Metoprolol TartrateMetoprolol Tartrate7927
Duloxetine HclDuloxetine Hcl7014
EliquisApixaban6318
PrednisonePrednisone5933
OmeprazoleOmeprazole5820
EzetimibeEzetimibe5615
FarxigaDapagliflozin Propanediol5413
Trazodone HclTrazodone Hcl5414
GlimepirideGlimepiride5115
Amitriptyline HclAmitriptyline Hcl4911
Alendronate SodiumAlendronate Sodium4714
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril4613
BaclofenBaclofen46suppressed
AtenololAtenolol4114
Buspirone HclBuspirone Hcl41suppressed
LevetiracetamLevetiracetam41suppressed
Oxycodone HclOxycodone Hcl41suppressed
Betamethasone ValerateBetamethasone Valerate4024
Donepezil HclDonepezil Hcl4011
JanuviaSitagliptin Phosphate37suppressed
Montelukast SodiumMontelukast Sodium37suppressed
Venlafaxine Hcl ErVenlafaxine Hcl37suppressed
Hydralazine HclHydralazine Hcl36suppressed
MounjaroTirzepatide36suppressed
Pravastatin SodiumPravastatin Sodium3613
ChlorthalidoneChlorthalidone35suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate34suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf3431
XareltoRivaroxaban33suppressed
LorazepamLorazepam32suppressed
Nifedipine ErNifedipine32suppressed
PregabalinPregabalin31suppressed
SpironolactoneSpironolactone3111
Doxycycline HyclateDoxycycline Hyclate3020
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf2929
CephalexinCephalexin2916
Zolpidem TartrateZolpidem Tartrate29suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog28suppressed
Oxybutynin Chloride ErOxybutynin Chloride28suppressed
Fluoxetine HclFluoxetine Hcl27suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog27suppressed
MirtazapineMirtazapine27suppressed
Ropinirole HclRopinirole Hcl27suppressed
Tizanidine HclTizanidine Hcl2711
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid27suppressed
Hydroxyzine HclHydroxyzine Hcl26suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter26suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone25suppressed
Dicyclomine HclDicyclomine Hcl25suppressed
FamotidineFamotidine25suppressed
Pioglitazone HclPioglitazone Hcl25suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol24suppressed
Ammonium LactateAmmonium Lactate23suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide23suppressed
SynthroidLevothyroxine Sodium22suppressed
AlprazolamAlprazolam21suppressed
FinasterideFinasteride21suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen21suppressed
Klor-Con M20Potassium Chloride20suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2014
Bupropion XlBupropion Hcl19suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl19suppressed
NystatinNystatin1915
Olmesartan MedoxomilOlmesartan Medoxomil19suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl18suppressed
EntrestoSacubitril/Valsartan18suppressed
Benazepril HclBenazepril Hcl17suppressed
SulfasalazineSulfasalazine17suppressed
TrulicityDulaglutide17suppressed
AripiprazoleAripiprazole16suppressed
LovastatinLovastatin16suppressed
AdmelogInsulin Lispro15suppressed
GlipizideGlipizide15suppressed
Meclizine HclMeclizine Hcl15suppressed
Novolin R FlexpenInsulin Regular, Human15suppressed
ValacyclovirValacyclovir Hcl15suppressed
Amlodipine-AtorvastatinAmlodipine/Atorvastatin14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1414
Labetalol HclLabetalol Hcl14suppressed
LidocaineLidocaine14suppressed
Ondansetron HclOndansetron Hcl14suppressed
Promethazine HclPromethazine Hcl14suppressed
Bupropion Hcl SrBupropion Hcl13suppressed
Dupixent PenDupilumab13suppressed
FluconazoleFluconazole13suppressed
MeloxicamMeloxicam13suppressed
Ondansetron OdtOndansetron13suppressed
Aspirin-Dipyridamole ErAspirin/Dipyridamole12suppressed
Droplet Pen NeedlePen Needle, Diabetic12suppressed
Paroxetine HclParoxetine Hcl12suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic12suppressed
Venlafaxine HclVenlafaxine Hcl12suppressed
FenofibrateFenofibrate Nanocrystallized11suppressed
HydrocortisoneHydrocortisone11suppressed
IrbesartanIrbesartan11suppressed
Levemir FlexpenInsulin Detemir11suppressed
Oxybutynin ChlorideOxybutynin Chloride11suppressed

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 $1,736.37 · 89 records Novo Nordisk Inc ACCRUFER, AIRSUPRA, Auvelity, CAPVAXIVE, COMIRNATY, CREON, Cologuard Collection Kit, Dexcom G6 Transmitter, EVENITY, FARXIGA, GARDASIL 9, GEMTESA, GVOKE HYPOPEN, JARDIANCE, Kerendia, Korlym, LINZESS, MOUNJARO, NURTEC ODT, Ozempic, PAXLOVID, PREVNAR 20, REXULTI, Rybelsus, VOQUEZNA, VRAYLAR, Veozah, Vivotif, Wegovy, XIFAXAN, Xhance, ZAVZPRET, ZEPBOUND 8
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