Healthcare provider profile · identity verified

Christopher M Gallagher, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · WASHINGTON, DC · NPI 1467430579

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 Christopher M Gallagher, M.D. received $3,812.19 in general payments during 2025 across 26 reported records.

AstraZeneca Pharmaceuticals LP accounted for 87.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 22 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 15 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

$3,812.19

26 reported records · 15 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $3,319.8187.1%42025
PFIZER INC. Unresolved — no canonical attribution shown $67.131.8%32025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $52.661.4%22025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $52.441.4%22025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $42.131.1%22025
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $42.021.1%22025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $39.181.0%22025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $36.991.0%22025
Jazz Pharmaceuticals Inc. Unresolved — no canonical attribution shown $32.620.9%12025
BeOne Medicines USA, Inc. Unresolved — no canonical attribution shown $30.480.8%12025
Alnylam Pharmaceuticals Inc. Unresolved — no canonical attribution shown $24.190.6%12025
Incyte Corporation Unresolved — no canonical attribution shown $23.280.6%12025
Genentech USA, Inc. Unresolved — no canonical attribution shown $18.760.5%12025
EMD Serono, Inc. Unresolved — no canonical attribution shown $16.620.4%12025
ADC THERAPEUTICS AMERICA, INC. Unresolved — no canonical attribution shown $13.880.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$3,280.001
Food and Beverage$501.5424
Education$30.651

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
DATROWAY
Normalized: datroway
Biological, Drug AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc. $3,294.75 2 2025
Source payment records
TUKYSA
Normalized: tukysa
Drug ARRAY BIOPHARMA INC, PFIZER INC. $58.91 3 2025
Source payment records
IBRANCE
Normalized: ibrance
Drug PFIZER INC. $47.54 2 2025
Source payment records
Trodelvy
Normalized: trodelvy
Drug Gilead Sciences, Inc. $42.13 2 2025
Source payment records
BRAFTOVI
Normalized: braftovi
Drug ARRAY BIOPHARMA INC $42.02 2 2025
Source payment records
MEKTOVI
Normalized: mektovi
Drug ARRAY BIOPHARMA INC $42.02 2 2025
Source payment records
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $36.99 2 2025
Source payment records
ZEPZELCA
Normalized: zepzelca
Drug Jazz Pharmaceuticals Inc. $32.62 1 2025
Source payment records
TEVIMBRA
Normalized: tevimbra
Drug BeOne Medicines USA, Inc. $30.48 1 2025
Source payment records
LYNOZYFIC
Normalized: lynozyfic
Biological Regeneron Healthcare Solutions, Inc. $29.16 1 2025
Source payment records
Padcev
Normalized: padcev
Drug Astellas Pharma US Inc $27.88 1 2025
Source payment records
Vyloy
Normalized: vyloy
Drug Astellas Pharma US Inc $24.78 1 2025
Source payment records
Enhertu
Normalized: enhertu
Drug Daiichi Sankyo Inc. $24.43 1 2025
Source payment records
JAKAFI
Normalized: jakafi
Drug Incyte Corporation $23.28 1 2025
Source payment records
LIBTAYO
Normalized: libtayo
Biological Regeneron Healthcare Solutions, Inc. $23.28 1 2025
Source payment records
NIKTIMVO
Normalized: niktimvo
Drug Incyte Corporation $23.28 1 2025
Source payment records
CALQUENCE
Normalized: calquence
Drug AstraZeneca Pharmaceuticals LP $23.21 2 2025
Source payment records
ADCETRIS
Normalized: adcetris
Biological PFIZER INC. $19.59 1 2025
Source payment records
ELREXFIO
Normalized: elrexfio
Drug PFIZER INC. $19.59 1 2025
Source payment records
Polivy
Normalized: polivy
Biological Genentech USA, Inc. $18.76 1 2025
Source payment records
TAGRISSO
Normalized: tagrisso
Drug AstraZeneca Pharmaceuticals LP $18.00 2 2025
Source payment records
ZYNLONTA
Normalized: zynlonta
Drug ADC THERAPEUTICS AMERICA, INC. $13.88 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
15 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
AnastrozoleAnastrozole5630
LetrozoleLetrozole5226
ExemestaneExemestane16suppressed
EliquisApixaban15suppressed
Alendronate SodiumAlendronate Sodium11suppressed

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 $3,812.19 · 26 records AstraZeneca Pharmaceuticals LP ADCETRIS, BRAFTOVI, CALQUENCE, DATROWAY, ELREXFIO, Enhertu, IBRANCE, JAKAFI, KEYTRUDA, LIBTAYO, LYNOZYFIC, MEKTOVI, NIKTIMVO, Padcev, Polivy, TAGRISSO, TEVIMBRA, TUKYSA, Trodelvy, Vyloy, ZEPZELCA, ZYNLONTA 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