Healthcare provider profile · identity verified

Dan L Pierce, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Clinical Cardiac Electrophysiology · COLUMBIA, MO · NPI 1215920541

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 Dan L Pierce, M.D. received $256.03 in general payments during 2025 across 13 reported records.

GENZYME CORPORATION accounted for 16.8% 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.

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 21 claims for Farxiga by this doctor in 2024.

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 709 claims for Eliquis 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 709 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

$256.03

13 reported records · 9 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
GENZYME CORPORATION Unresolved — no canonical attribution shown $43.0316.8%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $37.5414.7%22025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $36.5614.3%22025
PFIZER INC. Unresolved — no canonical attribution shown $35.2213.8%22025
CVRx, Inc. Unresolved — no canonical attribution shown $24.989.8%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $23.699.2%12025
ABIOMED Unresolved — no canonical attribution shown $21.578.4%12025
Amgen Inc. Unresolved — no canonical attribution shown $19.127.5%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $14.325.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$256.0313

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
ELIQUIS
Normalized: eliquis
Drug E.R. Squibb & Sons, L.L.C., PFIZER INC. $51.32 3 2025
Source payment records
FABRAZYME
Normalized: fabrazyme
Biological GENZYME CORPORATION $43.03 2 2025
Source payment records
WAINUA
Normalized: wainua
Drug AstraZeneca Pharmaceuticals LP $37.54 2 2025
Source payment records
Barostim Neo System
Normalized: barostim neo system
Device CVRx, Inc. $24.98 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $23.69 1 2025
Source payment records
VYNDAQEL
Normalized: vyndaqel
Drug PFIZER INC. $20.46 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $19.12 1 2025
Source payment records
VERQUVO
Normalized: verquvo
Drug Merck Sharp & Dohme LLC $14.32 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 709 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
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
21 suppressed by CMS
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
709 136
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
709 136

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
EliquisApixaban709136
SotalolSotalol Hcl518129
Diltiazem 24hr Er (Cd)Diltiazem Hcl406111
Metoprolol SuccinateMetoprolol Succinate34991
Flecainide AcetateFlecainide Acetate33585
Warfarin SodiumWarfarin Sodium29145
FurosemideFurosemide28674
XareltoRivaroxaban22148
Amiodarone HclAmiodarone Hcl21461
CarvedilolCarvedilol20658
Potassium ChloridePotassium Chloride17544
Losartan PotassiumLosartan Potassium17045
LisinoprilLisinopril15845
SpironolactoneSpironolactone14941
Amlodipine BesylateAmlodipine Besylate12237
EntrestoSacubitril/Valsartan12229
ClopidogrelClopidogrel Bisulfate10628
HydrochlorothiazideHydrochlorothiazide10631
DigoxinDigoxin9926
Metoprolol TartrateMetoprolol Tartrate6822
Atorvastatin CalciumAtorvastatin Calcium6422
TorsemideTorsemide5615
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5250
Midodrine HclMidodrine Hcl4813
Diltiazem 24hr ErDiltiazem Hcl4017
Cartia XtDiltiazem Hcl3415
AtenololAtenolol33suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate31suppressed
NitroglycerinNitroglycerin2814
MetolazoneMetolazone26suppressed
FarxigaDapagliflozin Propanediol21suppressed
Pravastatin SodiumPravastatin Sodium21suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid20suppressed
Diltiazem HclDiltiazem Hcl18suppressed
Mexiletine HclMexiletine Hcl18suppressed
Bisoprolol FumarateBisoprolol Fumarate17suppressed
Enoxaparin SodiumEnoxaparin Sodium16suppressed
Diltiazem 12hr ErDiltiazem Hcl14suppressed
Clonidine HclClonidine Hcl13suppressed
Nifedipine ErNifedipine12suppressed
Propranolol HclPropranolol Hcl12suppressed
CorlanorIvabradine Hcl11suppressed
IrbesartanIrbesartan11suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide11suppressed
Rosuvastatin CalciumRosuvastatin Calcium11suppressed

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 $256.03 · 13 records GENZYME CORPORATION Barostim Neo System, ELIQUIS, FABRAZYME, REPATHA, VERQUVO, VYNDAQEL, WAINUA, Wegovy 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