Healthcare provider profile · identity verified

Greg E Halliday, PA-C

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant · LOGAN, UT · NPI 1366431918

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 Greg E Halliday, PA-C received $427.16 in general payments during 2025 across 28 reported records.

Amgen Inc. accounted for 37.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 8 associated products.

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

E.R. Squibb & Sons, L.L.C. 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 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 613 claims for Eliquis by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ENTRESTO as an associated drug or biological on 9346 records involving 6254 distinct recipient NPIs. Public Medicare Part D data also shows 185 claims for Entresto 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 613 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

$427.16

28 reported records · 7 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
Amgen Inc. Unresolved — no canonical attribution shown $159.4737.3%82025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $136.2731.9%132025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $52.0812.2%32025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $25.696.0%12025
Alnylam Pharmaceuticals Inc. Unresolved — no canonical attribution shown $22.685.3%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $16.934.0%12025
PFIZER INC. Unresolved — no canonical attribution shown $14.043.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$427.1628

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
REPATHA
Normalized: repatha
Biological Amgen Inc. $159.47 8 2025
Source payment records
CAMZYOS
Normalized: camzyos
Drug E.R. Squibb & Sons, L.L.C. $101.52 6 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $52.08 3 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug E.R. Squibb & Sons, L.L.C., PFIZER INC. $48.79 8 2025
Source payment records
EVKEEZA
Normalized: evkeeza
Biological Regeneron Healthcare Solutions, Inc. $25.69 1 2025
Source payment records
PRALUENT
Normalized: praluent
Biological Regeneron Healthcare Solutions, Inc. $25.69 1 2025
Source payment records
AMVUTTRA
Normalized: amvuttra
Drug Alnylam Pharmaceuticals Inc. $22.68 1 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $16.93 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 613 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
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
613 181
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 ENTRESTO
open payments reported associated product
CMS Open Payments — General Payments
9346 supporting records · 6254 recipient NPIs · example record 1200004797
Entresto · 2024
Exact normalized brand match · 1 Part D row
185 43
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
613 181

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 Calcium1184399
CarvedilolCarvedilol838275
ClopidogrelClopidogrel Bisulfate689222
EliquisApixaban613181
Rosuvastatin CalciumRosuvastatin Calcium498163
Metoprolol SuccinateMetoprolol Succinate411149
TorsemideTorsemide352127
Amlodipine BesylateAmlodipine Besylate311104
LisinoprilLisinopril30298
Nifedipine ErNifedipine20068
Metoprolol TartrateMetoprolol Tartrate18765
EntrestoSacubitril/Valsartan18543
Amiodarone HclAmiodarone Hcl16856
ValsartanValsartan16453
Isosorbide Mononitrate ErIsosorbide Mononitrate14050
EzetimibeEzetimibe12939
Nebivolol HclNebivolol Hcl12240
Potassium ChloridePotassium Chloride11941
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide11838
Losartan PotassiumLosartan Potassium11343
SpironolactoneSpironolactone10938
Flecainide AcetateFlecainide Acetate10430
OmeprazoleOmeprazole10332
HydrochlorothiazideHydrochlorothiazide9531
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide8527
ChlorthalidoneChlorthalidone6621
Pantoprazole SodiumPantoprazole Sodium6527
SotalolSotalol Hcl6423
Olmesartan MedoxomilOlmesartan Medoxomil6318
Warfarin SodiumWarfarin Sodium6219
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide5521
Prasugrel HclPrasugrel Hcl5521
FurosemideFurosemide5218
Ranolazine ErRanolazine4612
XareltoRivaroxaban4311
Pravastatin SodiumPravastatin Sodium3912
SimvastatinSimvastatin3514
Diltiazem 24hr Er (Cd)Diltiazem Hcl3411
Verapamil ErVerapamil Hcl3411
Levothyroxine SodiumLevothyroxine Sodium3011
Zolpidem TartrateZolpidem Tartrate28suppressed
Sertraline HclSertraline Hcl27suppressed
FarxigaDapagliflozin Propanediol2411
NitroglycerinNitroglycerin2416
Repatha SureclickEvolocumab24suppressed
BrilintaTicagrelor23suppressed
AllopurinolAllopurinol22suppressed
Verapamil SrVerapamil Hcl22suppressed
Praluent PenAlirocumab20suppressed
LivaloPitavastatin Calcium18suppressed
ClonidineClonidine16suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide14suppressed
BumetanideBumetanide13suppressed
Diltiazem 24hr ErDiltiazem Hcl13suppressed
Hydralazine HclHydralazine Hcl13suppressed
Nitroglycerin PatchNitroglycerin12suppressed
CilostazolCilostazol11suppressed
Niacin ErNiacin11suppressed
VascepaIcosapent Ethyl11suppressed

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 $427.16 · 28 records Amgen Inc. AMVUTTRA, CAMZYOS, ELIQUIS, EVKEEZA, JARDIANCE, LEQVIO, PRALUENT, REPATHA 3
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