Healthcare provider profile · identity verified

David M O'Malley, M.D.

Allopathic & Osteopathic Physicians|Obstetrics & Gynecology|Gynecologic Oncology · HILLIARD, OH · NPI 1609819424

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 David M O'Malley, M.D. received $161,764.28 in general payments during 2025 across 95 reported records.

Merck Sharp & Dohme LLC accounted for 40.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 12 associated products.

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

GlaxoSmithKline, LLC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ZEJULA as an associated drug or biological on 7846 records involving 3899 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Zejula by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$161,764.28

95 reported records · 18 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
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $64,874.7440.1%322025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $17,141.2210.6%92025
ABBVIE INC. Unresolved — no canonical attribution shown $15,913.879.8%122025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $11,150.006.9%32025
Regeneron Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $9,012.755.6%72025
AstraZeneca UK Limited Unresolved — no canonical attribution shown $7,105.004.4%32025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $6,244.303.9%52025
Corcept Therapeutics Unresolved — no canonical attribution shown $6,068.773.8%52025
Genmab U.S., Inc. Unresolved — no canonical attribution shown $4,178.602.6%52025
BeOne Medicines USA, Inc. Unresolved — no canonical attribution shown $4,000.002.5%32025
Incyte Corporation Unresolved — no canonical attribution shown $3,955.002.4%22025
Aadi Bioscience, Inc. Unresolved — no canonical attribution shown $3,866.672.4%22025
Day One Biopharmaceuticals Unresolved — no canonical attribution shown $3,400.002.1%12025
BioNTech SE Unresolved — no canonical attribution shown $2,760.001.7%22025
Eli Lilly and Company Unresolved — no canonical attribution shown $2,025.001.2%12025
Mindray DS USA, Inc. Unresolved — no canonical attribution shown $29.400.0%12025
Eisai Inc. Unresolved — no canonical attribution shown $20.500.0%12025
Syndax Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $18.460.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$90,428.6735
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$48,310.006
Travel and Lodging$21,012.5824
Food and Beverage$2,013.0330

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
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $9,238.87 8 2025
Source payment records
ELAHERE
Normalized: elahere
Drug ABBVIE INC. $7,576.37 11 2025
Source payment records
Enhertu
Normalized: enhertu
Drug Daiichi Sankyo Inc. $5,836.22 7 2025
Source payment records
Epkinly
Normalized: epkinly
Drug Genmab U.S., Inc. $4,000.00 3 2025
Source payment records
Fyarro
Normalized: fyarro
Drug Aadi Bioscience, Inc. $3,866.67 2 2025
Source payment records
LYNPARZA
Normalized: lynparza
Biological, Drug AstraZeneca Pharmaceuticals LP, Merck Sharp & Dohme LLC $2,064.30 3 2025
Source payment records
ZEJULA
Normalized: zejula
Drug GlaxoSmithKline, LLC. $1,600.00 1 2025
Source payment records
IMFINZI
Normalized: imfinzi
Biological AstraZeneca UK Limited $135.00 1 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $97.64 1 2025
Source payment records
TE X
Normalized: te x
Device Mindray DS USA, Inc. $29.40 1 2025
Source payment records
TE7 MAX
Normalized: te7 max
Device Mindray DS USA, Inc. $29.40 1 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $20.50 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
ZEJULA
zejula
2025 Zejula 2024 13
Beneficiary count suppressed
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
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 ZEJULA
open payments reported associated product
CMS Open Payments — General Payments
7846 supporting records · 3899 recipient NPIs · example record 1190332880
Zejula · 2024
Exact normalized brand match · 1 Part D row
13 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
ZejulaNiraparib Tosylate13suppressed
IbuprofenIbuprofen12suppressed

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 $161,764.28 · 95 records Merck Sharp & Dohme LLC ELAHERE, Enhertu, Epkinly, Fyarro, IMFINZI, KEYTRUDA, Korlym, LYNPARZA, Lenvima, TE X, TE7 MAX, ZEJULA 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