Healthcare provider profile · identity verified

Mark Allan Harrison, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · POUGHKEEPSIE, NY · NPI 1285799585

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 Mark Allan Harrison, MD received $573.53 in general payments during 2025 across 16 reported records.

E.R. Squibb & Sons, L.L.C. accounted for 38.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 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 397 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 46 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 397 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

$573.53

16 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
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $222.9038.9%42025
Abbott Laboratories Unresolved — no canonical attribution shown $100.9617.6%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $93.5816.3%42025
BridgeBio Pharma, Inc. Unresolved — no canonical attribution shown $69.8912.2%22025
Amgen Inc. Unresolved — no canonical attribution shown $42.547.4%22025
PFIZER INC. Unresolved — no canonical attribution shown $22.123.9%12025
Boston Scientific Corporation Unresolved — no canonical attribution shown $21.543.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$573.5316

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
CAMZYOS
Normalized: camzyos
Drug E.R. Squibb & Sons, L.L.C. $193.58 3 2025
Source payment records
CARDIOMEMS
Normalized: cardiomems
Device Abbott Laboratories $100.96 2 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $93.58 4 2025
Source payment records
Attruby
Normalized: attruby
Drug BridgeBio Pharma, Inc. $69.89 2 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $42.54 2 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug E.R. Squibb & Sons, L.L.C. $29.32 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $22.12 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $22.12 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $22.12 1 2025
Source payment records
WATCHMAN FLX
Normalized: watchman flx
Device Boston Scientific Corporation $21.54 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 397 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
397 110
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
46 suppressed by CMS
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
397 110

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 Calcium560178
EliquisApixaban397110
Metoprolol SuccinateMetoprolol Succinate381123
Rosuvastatin CalciumRosuvastatin Calcium357121
Losartan PotassiumLosartan Potassium32195
Amlodipine BesylateAmlodipine Besylate318106
HydrochlorothiazideHydrochlorothiazide23473
LisinoprilLisinopril22976
FurosemideFurosemide22770
CarvedilolCarvedilol22470
ClopidogrelClopidogrel Bisulfate20967
Hydralazine HclHydralazine Hcl20756
Metoprolol TartrateMetoprolol Tartrate17254
SpironolactoneSpironolactone10328
Warfarin SodiumWarfarin Sodium9439
XareltoRivaroxaban9025
AtenololAtenolol6724
Diltiazem 24hr Er (Cd)Diltiazem Hcl5419
EzetimibeEzetimibe5023
Amiodarone HclAmiodarone Hcl4922
EntrestoSacubitril/Valsartan46suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate4314
Pravastatin SodiumPravastatin Sodium4315
SimvastatinSimvastatin4113
Clonidine HclClonidine Hcl32suppressed
BrilintaTicagrelor30suppressed
TorsemideTorsemide3012
ValsartanValsartan26suppressed
Olmesartan MedoxomilOlmesartan Medoxomil25suppressed
DigoxinDigoxin24suppressed
Potassium ChloridePotassium Chloride24suppressed
RamiprilRamipril24suppressed
SotalolSotalol Hcl23suppressed
FarxigaDapagliflozin Propanediol21suppressed
DofetilideDofetilide18suppressed
Flecainide AcetateFlecainide Acetate17suppressed
TelmisartanTelmisartan14suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid14suppressed
JardianceEmpagliflozin13suppressed
AmoxicillinAmoxicillin12suppressed
Cartia XtDiltiazem Hcl12suppressed
Enalapril MaleateEnalapril Maleate12suppressed
Pantoprazole SodiumPantoprazole Sodium12suppressed
Ranolazine ErRanolazine12suppressed
Verapamil ErVerapamil Hcl12suppressed
Diltiazem 24hr Er (Xr)Diltiazem Hcl11suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide11suppressed
Nebivolol HclNebivolol Hcl11suppressed
OmeprazoleOmeprazole11suppressed

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 $573.53 · 16 records E.R. Squibb & Sons, L.L.C. ABRYSVO, Attruby, CAMZYOS, CARDIOMEMS, COMIRNATY, ELIQUIS, LEQVIO, PREVNAR 20, REPATHA, WATCHMAN FLX 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