Healthcare provider profile · identity verified

Fredric H Klopf, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease · PEORIA, AZ · NPI 1598766487

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 Fredric H Klopf, MD received $186.57 in general payments during 2025 across 7 reported records.

PFIZER INC. accounted for 30.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

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 782 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

$186.57

7 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
PFIZER INC. Unresolved — no canonical attribution shown $57.4030.8%32025
Cleerly, Inc. Unresolved — no canonical attribution shown $51.7127.7%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $29.6915.9%12025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$24.8113.3%12025
Boston Scientific Corporation Unresolved — no canonical attribution shown $22.9612.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$186.577

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
VYNDAQEL
Normalized: vyndaqel
Drug PFIZER INC. $57.40 3 2025
Source payment records
Cleerly Ischemia
Normalized: cleerly ischemia
Device Cleerly, Inc. $51.71 1 2025
Source payment records
Cleerly Labs
Normalized: cleerly labs
Device Cleerly, Inc. $51.71 1 2025
Source payment records
VERQUVO
Normalized: verquvo
Drug Merck Sharp & Dohme LLC $29.69 1 2025
Source payment records
VENASEAL
Normalized: venaseal
Device Medtronic, Inc. $24.81 1 2025
Source payment records
General - Therapies
Normalized: general therapies
Device Boston Scientific Corporation $22.96 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
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
782 202

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
Metoprolol SuccinateMetoprolol Succinate820254
EliquisApixaban782202
Losartan PotassiumLosartan Potassium412124
Amlodipine BesylateAmlodipine Besylate386123
CarvedilolCarvedilol359112
FurosemideFurosemide305110
Atorvastatin CalciumAtorvastatin Calcium29593
LisinoprilLisinopril27689
Rosuvastatin CalciumRosuvastatin Calcium26585
Metoprolol TartrateMetoprolol Tartrate25997
ClopidogrelClopidogrel Bisulfate18761
NitroglycerinNitroglycerin17997
Isosorbide Mononitrate ErIsosorbide Mononitrate15442
SpironolactoneSpironolactone15052
Flecainide AcetateFlecainide Acetate14252
XareltoRivaroxaban13936
Potassium ChloridePotassium Chloride12050
DigoxinDigoxin11733
ValsartanValsartan10834
Warfarin SodiumWarfarin Sodium10632
BumetanideBumetanide8731
Diltiazem 24hr Er (Cd)Diltiazem Hcl8631
AtenololAtenolol7221
FarxigaDapagliflozin Propanediol7116
Hydralazine HclHydralazine Hcl7122
SimvastatinSimvastatin7022
EntrestoSacubitril/Valsartan6218
HydrochlorothiazideHydrochlorothiazide6026
Amiodarone HclAmiodarone Hcl5621
SotalolSotalol Hcl5217
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid5220
Nifedipine ErNifedipine5113
Midodrine HclMidodrine Hcl4917
JardianceEmpagliflozin4412
Pravastatin SodiumPravastatin Sodium4013
BrilintaTicagrelor36suppressed
Ranolazine ErRanolazine3516
Diltiazem 24hr ErDiltiazem Hcl3113
EzetimibeEzetimibe30suppressed
AmoxicillinAmoxicillin2715
Repatha SureclickEvolocumab24suppressed
TorsemideTorsemide21suppressed
IrbesartanIrbesartan20suppressed
CelecoxibCelecoxib19suppressed
Praluent PenAlirocumab17suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide15suppressed
MultaqDronedarone Hcl15suppressed
Clonidine HclClonidine Hcl14suppressed
Fludrocortisone AcetateFludrocortisone Acetate14suppressed
Klor-Con M20Potassium Chloride14suppressed
OmeprazoleOmeprazole14suppressed
Sotalol AfSotalol Hcl13suppressed
Olmesartan MedoxomilOlmesartan Medoxomil12suppressed
Verapamil ErVerapamil Hcl12suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide11suppressed

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 $186.57 · 7 records PFIZER INC. Cleerly Ischemia, Cleerly Labs, General - Therapies, VENASEAL, VERQUVO, VYNDAQEL 1
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