Healthcare provider profile · identity verified

Sherrie O'Callaghan

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner · NORTH PORT, FL · NPI 1043865587

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 Sherrie O'Callaghan received $1,308.08 in general payments during 2025 across 52 reported records.

Merck Sharp & Dohme LLC accounted for 9.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 41 associated products.

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

Payment overview · 2025

General Payments

$1,308.08

52 reported records · 26 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 $125.739.6%52025
Celgene Corporation Unresolved — no canonical attribution shown $122.799.4%42025
Incyte Corporation Unresolved — no canonical attribution shown $122.649.4%52025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $96.647.4%42025
SEAGEN INC. Unresolved — no canonical attribution shown $95.957.3%12025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $67.485.2%32025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $66.855.1%32025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $62.974.8%22025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $61.994.7%32025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $61.294.7%32025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $57.904.4%22025
ABBVIE INC. Unresolved — no canonical attribution shown $40.493.1%22025
Novo Nordisk Inc Unresolved — no canonical attribution shown $36.902.8%22025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $34.382.6%12025
KYOWA KIRIN, INC. Unresolved — no canonical attribution shown $29.962.3%12025
BeOne Medicines USA, Inc. Unresolved — no canonical attribution shown $28.862.2%12025
Pharmacosmos Therapeutics Inc. Unresolved — no canonical attribution shown $26.482.0%12025
MAYNE PHARMA COMMERCIAL LLC Unresolved — no canonical attribution shown $23.531.8%12025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $21.851.7%12025
PFIZER INC. Unresolved — no canonical attribution shown $20.621.6%12025
Aveo Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $20.181.5%12025
Karyopharm Therapeutics Inc. Unresolved — no canonical attribution shown $18.831.4%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $16.901.3%12025
Eisai Inc. Unresolved — no canonical attribution shown $16.441.3%12025
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $15.671.2%12025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $14.761.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,212.1351
Education$95.951

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
REBLOZYL
Normalized: reblozyl
Biological Celgene Corporation, Merck Sharp & Dohme LLC $139.48 5 2025
Source payment records
MONJUVI
Normalized: monjuvi
Drug Incyte Corporation $96.96 4 2025
Source payment records
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $93.26 4 2025
Source payment records
ENHERTU
Normalized: enhertu
Biological, Drug AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc. $85.98 3 2025
Source payment records
Trodelvy
Normalized: trodelvy
Drug Gilead Sciences, Inc. $67.48 3 2025
Source payment records
OPDIVO
Normalized: opdivo
Biological E.R. Squibb & Sons, L.L.C. $61.99 3 2025
Source payment records
Xospata
Normalized: xospata
Drug Astellas Pharma US Inc $44.35 2 2025
Source payment records
WELIREG
Normalized: welireg
Drug Merck Sharp & Dohme LLC $42.51 2 2025
Source payment records
NINLARO
Normalized: ninlaro
Drug Takeda Pharmaceuticals U.S.A., Inc. $35.29 1 2025
Source payment records
OJJAARA
Normalized: ojjaara
Drug GlaxoSmithKline, LLC. $34.38 1 2025
Source payment records
KEYTRUDA QLEX
Normalized: keytruda qlex
Biological Merck Sharp & Dohme LLC $34.12 1 2025
Source payment records
LYNPARZA
Normalized: lynparza
Biological Merck Sharp & Dohme LLC $34.12 1 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $32.47 1 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $32.47 1 2025
Source payment records
POTELIGEO
Normalized: poteligeo
Drug KYOWA KIRIN, INC. $29.96 1 2025
Source payment records
DATROWAY
Normalized: datroway
Drug Daiichi Sankyo Inc. $29.11 1 2025
Source payment records
BRUKINSA
Normalized: brukinsa
Drug BeOne Medicines USA, Inc. $28.86 1 2025
Source payment records
FRUZAQLA
Normalized: fruzaqla
Drug Takeda Pharmaceuticals U.S.A., Inc. $27.68 1 2025
Source payment records
MONOFERRIC
Normalized: monoferric
Drug Pharmacosmos Therapeutics Inc. $26.48 1 2025
Source payment records
JAKAFI
Normalized: jakafi
Drug Incyte Corporation $25.68 1 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $24.60 1 2025
Source payment records
Vyloy
Normalized: vyloy
Drug Astellas Pharma US Inc $22.50 1 2025
Source payment records
DARZALEX
Normalized: darzalex
Biological Janssen Biotech, Inc. $21.85 1 2025
Source payment records
TALVEY
Normalized: talvey
Biological Janssen Biotech, Inc. $21.85 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $21.49 1 2025
Source payment records
PLUVICTO
Normalized: pluvicto
Drug Novartis Pharmaceuticals Corporation $21.03 1 2025
Source payment records
IBRANCE
Normalized: ibrance
Drug PFIZER INC. $20.62 1 2025
Source payment records
TUKYSA
Normalized: tukysa
Drug PFIZER INC. $20.62 1 2025
Source payment records
ELAHERE
Normalized: elahere
Drug ABBVIE INC. $20.37 1 2025
Source payment records
FOTIVDA
Normalized: fotivda
Drug Aveo Pharmaceuticals, Inc. $20.18 1 2025
Source payment records
VENCLEXTA
Normalized: venclexta
Drug ABBVIE INC. $20.12 1 2025
Source payment records
XPOVIO
Normalized: xpovio
Drug Karyopharm Therapeutics Inc. $18.83 1 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $16.90 1 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $16.44 1 2025
Source payment records
IMFINZI
Normalized: imfinzi
Biological AstraZeneca Pharmaceuticals LP $15.97 1 2025
Source payment records
BRAFTOVI
Normalized: braftovi
Drug ARRAY BIOPHARMA INC $15.67 1 2025
Source payment records
LORBRENA
Normalized: lorbrena
Drug ARRAY BIOPHARMA INC $15.67 1 2025
Source payment records
MEKTOVI
Normalized: mektovi
Drug ARRAY BIOPHARMA INC $15.67 1 2025
Source payment records
LUTATHERA
Normalized: lutathera
Drug Novartis Pharmaceuticals Corporation $15.66 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $15.41 1 2025
Source payment records
ORGOVYX
Normalized: orgovyx
Drug Sumitomo Pharma America, Inc. $14.76 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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
AnastrozoleAnastrozole3414
Atorvastatin CalciumAtorvastatin Calcium24suppressed
Losartan PotassiumLosartan Potassium19suppressed
FluconazoleFluconazole18suppressed
Rosuvastatin CalciumRosuvastatin Calcium16suppressed
LetrozoleLetrozole15suppressed
Metoprolol SuccinateMetoprolol Succinate14suppressed
Pantoprazole SodiumPantoprazole Sodium14suppressed
Levothyroxine SodiumLevothyroxine Sodium13suppressed
PrednisonePrednisone12suppressed
Amlodipine BesylateAmlodipine Besylate11suppressed

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 $1,308.08 · 52 records Merck Sharp & Dohme LLC BRAFTOVI, BRUKINSA, CAPVAXIVE, DARZALEX, DATROWAY, ELAHERE, ENHERTU, FOTIVDA, FRUZAQLA, Fabhalta, GARDASIL 9, IBRANCE, IMFINZI, JAKAFI, KEYTRUDA, KEYTRUDA QLEX, LORBRENA, LUTATHERA, LYNPARZA, Lenvima, MEKTOVI, MONJUVI, MONOFERRIC, NINLARO, OJJAARA, OPDIVO, ORGOVYX, Ozempic, PLUVICTO, POTELIGEO, REBLOZYL, TALVEY, TUKYSA, Trodelvy, VENCLEXTA, Vyloy, WELIREG, Wegovy, XPOVIO, Xospata, ZEPBOUND
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