Healthcare provider profile · identity verified

Gregory Brian Cain, PA-C

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical · MADISONVILLE, TN · NPI 1528388592

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 Gregory Brian Cain, PA-C received $1,053.70 in general payments during 2025 across 62 reported records.

PFIZER INC. accounted for 22.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 21 associated products.

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

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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Linzess by this doctor in 2024.

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 13 claims for Synthroid 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 54 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 49 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 45 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 125 claims for Ozempic 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 Rybelsus as an associated drug or biological on 161257 records involving 55409 distinct recipient NPIs. Public Medicare Part D data also shows 30 claims for Rybelsus 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 79 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

$1,053.70

62 reported records · 11 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
PFIZER INC. Unresolved — no canonical attribution shown $240.8822.9%202025
Novo Nordisk Inc Unresolved — no canonical attribution shown $216.2020.5%122025
ABBVIE INC. Unresolved — no canonical attribution shown $148.3714.1%92025
ACADIA Pharmaceuticals Inc Unresolved — no canonical attribution shown $127.0912.1%12025
Amgen Inc. Unresolved — no canonical attribution shown $77.627.4%52025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $66.366.3%42025
Lilly USA, LLC Unresolved — no canonical attribution shown $47.824.5%32025
Exact Sciences Corporation Unresolved — no canonical attribution shown $45.304.3%32025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$35.303.4%22025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $34.833.3%22025
Intra-Sana Laboratories Unresolved — no canonical attribution shown $13.931.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,053.7062

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
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $240.88 20 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $221.91 18 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $183.70 10 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $137.06 8 2025
Source payment records
NUPLAZID
Normalized: nuplazid
Drug ACADIA Pharmaceuticals Inc $127.09 1 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $92.46 6 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $77.62 5 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $66.36 4 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $55.91 3 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $47.82 3 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $47.82 3 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $45.30 3 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $41.34 2 2025
Source payment records
MINIMED 780G
Normalized: minimed 780g
Device Medtronic, Inc. $35.30 2 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $34.83 2 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $19.20 1 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $18.97 2 2025
Source payment records
GLYCATE
Normalized: glycate
Drug Intra-Sana Laboratories $13.93 1 2025
Source payment records
RELTONE 200 MG
Normalized: reltone 200 mg
Drug Intra-Sana Laboratories $13.93 1 2025
Source payment records
RELTONE 400 MG
Normalized: reltone 400 mg
Drug Intra-Sana Laboratories $13.93 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $13.77 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
ELIQUIS
eliquis
2025 Eliquis 2024 79 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 49 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 125 exact normalized Medicare Part D
Rybelsus
rybelsus
2025 Rybelsus 2024 30 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 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
18 suppressed by CMS
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
13 suppressed by CMS
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
54 16
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
49 14
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
45 15
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
125 39
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Rybelsus
open payments reported associated product
CMS Open Payments — General Payments
161257 supporting records · 55409 recipient NPIs · example record 1188130076
Rybelsus · 2024
Exact normalized brand match · 1 Part D row
30 11
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
79 25

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 Calcium455147
LisinoprilLisinopril422145
Amlodipine BesylateAmlodipine Besylate311114
Rosuvastatin CalciumRosuvastatin Calcium290110
Losartan PotassiumLosartan Potassium283101
Albuterol Sulfate HfaAlbuterol Sulfate275100
Levothyroxine SodiumLevothyroxine Sodium26888
OmeprazoleOmeprazole25887
Metformin HclMetformin Hcl24278
GabapentinGabapentin17461
Tamsulosin HclTamsulosin Hcl16953
HydrochlorothiazideHydrochlorothiazide16758
Pantoprazole SodiumPantoprazole Sodium16658
Fluticasone PropionateFluticasone Propionate15597
Potassium ChloridePotassium Chloride14548
Montelukast SodiumMontelukast Sodium13850
FurosemideFurosemide13452
CarvedilolCarvedilol12837
OzempicSemaglutide12539
Metoprolol TartrateMetoprolol Tartrate11845
Sertraline HclSertraline Hcl10933
ClopidogrelClopidogrel Bisulfate10536
Zolpidem TartrateZolpidem Tartrate10428
PrednisonePrednisone9970
SimvastatinSimvastatin9832
AlprazolamAlprazolam9620
Trazodone HclTrazodone Hcl9626
LorazepamLorazepam9214
AzithromycinAzithromycin8571
MeloxicamMeloxicam8239
AllopurinolAllopurinol7928
EliquisApixaban7925
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen7725
AmoxicillinAmoxicillin7364
MethylprednisoloneMethylprednisolone7258
Warfarin SodiumWarfarin Sodium6614
Citalopram HbrCitalopram Hydrobromide6529
FamotidineFamotidine6531
BaclofenBaclofen6225
Pravastatin SodiumPravastatin Sodium6223
Metoprolol SuccinateMetoprolol Succinate6023
Trelegy ElliptaFluticasone/Umeclidin/Vilanter6019
Ciprofloxacin HclCiprofloxacin Hcl5854
AtenololAtenolol5719
LovastatinLovastatin5720
PregabalinPregabalin5618
Triamcinolone AcetonideTriamcinolone Acetonide5632
FarxigaDapagliflozin Propanediol5415
JardianceEmpagliflozin5416
Tramadol HclTramadol Hcl5213
Cyclobenzaprine HclCyclobenzaprine Hcl5023
GlimepirideGlimepiride5021
MounjaroTirzepatide4914
Duloxetine HclDuloxetine Hcl4520
TrulicityDulaglutide4515
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst4435
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav4337
Paroxetine HclParoxetine Hcl43suppressed
EzetimibeEzetimibe4216
Ropinirole HclRopinirole Hcl4212
Metformin Hcl ErMetformin Hcl4012
SpironolactoneSpironolactone4012
Fluoxetine HclFluoxetine Hcl3812
IbuprofenIbuprofen3716
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3614
Benazepril HclBenazepril Hcl35suppressed
Ondansetron HclOndansetron Hcl3522
Esomeprazole MagnesiumEsomeprazole Magnesium3413
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3415
MirtazapineMirtazapine34suppressed
Escitalopram OxalateEscitalopram Oxalate3311
FinasterideFinasteride31suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid31suppressed
Ventolin HfaAlbuterol Sulfate31suppressed
GlipizideGlipizide30suppressed
RybelsusSemaglutide3011
Testosterone CypionateTestosterone Cypionate30suppressed
Alendronate SodiumAlendronate Sodium29suppressed
CelecoxibCelecoxib2915
Clindamycin HclClindamycin Hcl2925
Hydroxyzine HclHydroxyzine Hcl2915
Bupropion XlBupropion Hcl28suppressed
Buspirone HclBuspirone Hcl2811
Clonidine HclClonidine Hcl28suppressed
Diclofenac SodiumDiclofenac Sodium2811
Diltiazem 24hr Er (Cd)Diltiazem Hcl28suppressed
FluconazoleFluconazole2819
Quetiapine FumarateQuetiapine Fumarate28suppressed
NystatinNystatin2613
TrintellixVortioxetine Hydrobromide26suppressed
ClonazepamClonazepam25suppressed
EstradiolEstradiol25suppressed
Hydralazine HclHydralazine Hcl2511
Nifedipine ErNifedipine25suppressed
LevetiracetamLevetiracetam24suppressed
LevofloxacinLevofloxacin2422
XareltoRivaroxaban24suppressed
BumetanideBumetanide23suppressed
ColchicineColchicine22suppressed
JanuviaSitagliptin Phosphate21suppressed
Tizanidine HclTizanidine Hcl21suppressed
DiazepamDiazepam20suppressed
Doxazosin MesylateDoxazosin Mesylate20suppressed
Midodrine HclMidodrine Hcl20suppressed
SymbicortBudesonide/Formoterol Fumarate20suppressed
ValsartanValsartan20suppressed
Dicyclomine HclDicyclomine Hcl1911
Nano 2nd Gen Pen NeedlePen Needle, Diabetic19suppressed
Ondansetron OdtOndansetron1914
Propranolol HclPropranolol Hcl19suppressed
SucralfateSucralfate19suppressed
CefdinirCefdinir1817
LinzessLinaclotide18suppressed
MethocarbamolMethocarbamol18suppressed
Oxybutynin ChlorideOxybutynin Chloride18suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1814
FenofibrateFenofibrate17suppressed
Meclizine HclMeclizine Hcl17suppressed
Pioglitazone HclPioglitazone Hcl17suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate16suppressed
KetoconazoleKetoconazole16suppressed
LantusInsulin Glargine,hum.Rec.Anlog16suppressed
MyrbetriqMirabegron16suppressed
NaproxenNaproxen16suppressed
AcyclovirAcyclovir15suppressed
Folic AcidFolic Acid15suppressed
Insulin LisproInsulin Lispro15suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide15suppressed
ChlorthalidoneChlorthalidone14suppressed
NitroglycerinNitroglycerin14suppressed
TemazepamTemazepam14suppressed
Azelastine HclAzelastine Hcl13suppressed
Dabigatran EtexilateDabigatran Etexilate Mesylate13suppressed
GlyburideGlyburide13suppressed
Hydroxyzine PamoateHydroxyzine Pamoate13suppressed
IrbesartanIrbesartan13suppressed
Nortriptyline HclNortriptyline Hcl13suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl13suppressed
SynthroidLevothyroxine Sodium13suppressed
Breo ElliptaFluticasone/Vilanterol12suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine12suppressed
Enalapril MaleateEnalapril Maleate12suppressed
GemfibrozilGemfibrozil12suppressed
RamiprilRamipril12suppressed
Tramadol Hcl ErTramadol Hcl12suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1111
Flecainide AcetateFlecainide Acetate11suppressed
Nystatin-TriamcinoloneNystatin/Triamcinolone Acet11suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl11suppressed
TopiramateTopiramate11suppressed

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 $1,053.70 · 62 records PFIZER INC. CAPLYTA, Cologuard Collection Kit, ELIQUIS, GLYCATE, MINIMED 780G, MOUNJARO, NUPLAZID, NURTEC ODT, OTEZLA, Ozempic, QULIPTA, RELTONE 200 MG, RELTONE 400 MG, REPATHA, REXULTI, Rybelsus, UBRELVY, VRAYLAR, Wegovy, 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