Healthcare provider profile · identity verified

Alan W. Dappen

Allopathic & Osteopathic Physicians|Family Medicine · VIENNA, VA · NPI 1982796918

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 Alan W. Dappen received $39.44 in general payments during 2025 across 2 reported records.

PFIZER INC. accounted for 56.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

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

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 ABRYSVO as an associated drug or biological on 55380 records involving 31565 distinct recipient NPIs. Public Medicare Part D data also shows 61 claims for Abrysvo 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 20 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

$39.44

2 reported records · 2 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 $22.4256.9%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $17.0243.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$39.442

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
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $22.42 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $22.42 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $22.42 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $17.02 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
ABRYSVO
abrysvo
2025 Abrysvo 2024 61 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
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ABRYSVO
open payments reported associated product
CMS Open Payments — General Payments
55380 supporting records · 31565 recipient NPIs · example record 1228794147
Abrysvo · 2024
Exact normalized brand match · 1 Part D row
61 61
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
20 suppressed by CMS

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
AbrysvoRsv Vacc, Pref A And Pref B/Pf6161
Atorvastatin CalciumAtorvastatin Calcium6119
LisinoprilLisinopril4217
Pantoprazole SodiumPantoprazole Sodium42suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf3528
Rosuvastatin CalciumRosuvastatin Calcium31suppressed
Sertraline HclSertraline Hcl31suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac2929
AlprazolamAlprazolam2811
Tamsulosin HclTamsulosin Hcl28suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2619
AzithromycinAzithromycin2421
Memantine HclMemantine Hcl24suppressed
ArexvyRsvpref3 Antigen/As01e/Pf2121
EliquisApixaban20suppressed
Warfarin SodiumWarfarin Sodium20suppressed
Donepezil HclDonepezil Hcl18suppressed
FamotidineFamotidine17suppressed
FurosemideFurosemide17suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen17suppressed
PrednisonePrednisone17suppressed
CefdinirCefdinir16suppressed
HydrochlorothiazideHydrochlorothiazide16suppressed
LorazepamLorazepam15suppressed
Amlodipine BesylateAmlodipine Besylate14suppressed
EzetimibeEzetimibe14suppressed
Losartan PotassiumLosartan Potassium14suppressed
Potassium ChloridePotassium Chloride14suppressed
AtenololAtenolol12suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
Diltiazem 24hr Er (Xr)Diltiazem Hcl11suppressed
FluconazoleFluconazole11suppressed
MirtazapineMirtazapine11suppressed
Nebivolol HclNebivolol Hcl11suppressed

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 $39.44 · 2 records PFIZER INC. ABRYSVO, COMIRNATY, Cologuard Collection Kit, PREVNAR 20 2
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