Healthcare provider profile · identity verified

Ramesh K Ramanathan, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · SCOTTSDALE, AZ · NPI 1427023548

Profile state: payments only 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 Ramesh K Ramanathan, MD received $1,197.24 in general payments during 2025 across 47 reported records.

Merck Sharp & Dohme LLC accounted for 20.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 34 associated products.

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

Payment overview · 2025

General Payments

$1,197.24

47 reported records · 23 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 $250.4420.9%102025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $166.6813.9%62025
SEAGEN INC. Unresolved — no canonical attribution shown $99.008.3%12025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $75.846.3%42025
Blueprint Medicines Corporation Unresolved — no canonical attribution shown $66.395.5%22025
ABBVIE INC. Unresolved — no canonical attribution shown $65.735.5%32025
Lilly USA, LLC Unresolved — no canonical attribution shown $58.524.9%22025
Incyte Corporation Unresolved — no canonical attribution shown $57.434.8%22025
TerSera Therapeutics LLC Unresolved — no canonical attribution shown $37.623.1%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $37.003.1%22025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $35.533.0%22025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $26.362.2%12025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $25.642.1%12025
Rigel Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $24.722.1%12025
Eisai Inc. Unresolved — no canonical attribution shown $23.682.0%12025
Ipsen Biopharmaceuticals, Inc Unresolved — no canonical attribution shown $23.422.0%12025
Coherus Oncology, Inc. Unresolved — no canonical attribution shown $20.041.7%12025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $19.791.6%12025
Pharmacosmos Therapeutics Inc. Unresolved — no canonical attribution shown $18.961.6%12025
Novocure Inc. Unresolved — no canonical attribution shown $17.131.4%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $16.211.4%12025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $16.011.3%12025
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $15.101.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,054.9945
Education$142.252

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 $250.44 10 2025
Source payment records
WELIREG
Normalized: welireg
Drug Merck Sharp & Dohme LLC $81.76 3 2025
Source payment records
LYNPARZA
Normalized: lynparza
Biological Merck Sharp & Dohme LLC $79.89 3 2025
Source payment records
ENHERTU
Normalized: enhertu
Biological, Drug AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc. $68.89 2 2025
Source payment records
AYVAKIT
Normalized: ayvakit
Drug Blueprint Medicines Corporation $66.39 2 2025
Source payment records
IMBRUVICA
Normalized: imbruvica
Drug ABBVIE INC. $65.73 3 2025
Source payment records
TALVEY
Normalized: talvey
Biological Janssen Biotech, Inc. $61.88 3 2025
Source payment records
VERZENIO
Normalized: verzenio
Drug Lilly USA, LLC $58.52 2 2025
Source payment records
MONJUVI
Normalized: monjuvi
Drug Incyte Corporation $57.43 2 2025
Source payment records
PEMAZYRE
Normalized: pemazyre
Drug Incyte Corporation $57.43 2 2025
Source payment records
DARZALEX
Normalized: darzalex
Biological Janssen Biotech, Inc. $55.23 3 2025
Source payment records
KEYTRUDA QLEX
Normalized: keytruda qlex
Biological Merck Sharp & Dohme LLC $47.24 2 2025
Source payment records
IMFINZI
Normalized: imfinzi
Biological AstraZeneca Pharmaceuticals LP $42.22 2 2025
Source payment records
EPKINLY
Normalized: epkinly
Drug ABBVIE INC. $41.39 2 2025
Source payment records
Zoladex
Normalized: zoladex
Drug TerSera Therapeutics LLC $37.62 1 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $37.00 2 2025
Source payment records
Nubeqa
Normalized: nubeqa
Drug Bayer Healthcare Pharmaceuticals Inc. $35.53 2 2025
Source payment records
TECVAYLI
Normalized: tecvayli
Biological Janssen Biotech, Inc. $34.57 2 2025
Source payment records
LIBTAYO
Normalized: libtayo
Biological Regeneron Healthcare Solutions, Inc. $26.36 1 2025
Source payment records
Gavreto
Normalized: gavreto
Drug Rigel Pharmaceuticals, Inc. $24.72 1 2025
Source payment records
Rezlidhia
Normalized: rezlidhia
Drug Rigel Pharmaceuticals, Inc. $24.72 1 2025
Source payment records
TAVALISSE
Normalized: tavalisse
Drug Rigel Pharmaceuticals, Inc. $24.72 1 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $23.68 1 2025
Source payment records
Onivyde
Normalized: onivyde
Drug Ipsen Biopharmaceuticals, Inc $23.42 1 2025
Source payment records
Stivarga
Normalized: stivarga
Drug Bayer Healthcare Pharmaceuticals Inc. $20.11 1 2025
Source payment records
Vitrakvi
Normalized: vitrakvi
Drug Bayer Healthcare Pharmaceuticals Inc. $20.11 1 2025
Source payment records
LOQTORZI
Normalized: loqtorzi
Biological Coherus Oncology, Inc. $20.04 1 2025
Source payment records
Trodelvy
Normalized: trodelvy
Drug Gilead Sciences, Inc. $19.79 1 2025
Source payment records
MONOFERRIC
Normalized: monoferric
Drug Pharmacosmos Therapeutics Inc. $18.96 1 2025
Source payment records
Optune Lua (NovoTTF-200T)
Normalized: optune lua novottf 200t
Device Novocure Inc. $17.13 1 2025
Source payment records
Vyloy
Normalized: vyloy
Drug Astellas Pharma US Inc $16.01 1 2025
Source payment records
Xofigo
Normalized: xofigo
Drug Bayer Healthcare Pharmaceuticals Inc. $15.42 1 2025
Source payment records
BRAFTOVI
Normalized: braftovi
Drug ARRAY BIOPHARMA INC $15.10 1 2025
Source payment records
LORBRENA
Normalized: lorbrena
Drug ARRAY BIOPHARMA INC $15.10 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.

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 $1,197.24 · 47 records Merck Sharp & Dohme LLC AYVAKIT, BRAFTOVI, DARZALEX, ENHERTU, EPKINLY, Fabhalta, Gavreto, IMBRUVICA, IMFINZI, KEYTRUDA, KEYTRUDA QLEX, LIBTAYO, LOQTORZI, LORBRENA, LYNPARZA, Lenvima, MONJUVI, MONOFERRIC, Nubeqa, Onivyde, Optune Lua (NovoTTF-200T), PEMAZYRE, Rezlidhia, Stivarga, TALVEY, TAVALISSE, TECVAYLI, Trodelvy, VERZENIO, Vitrakvi, Vyloy, WELIREG, Xofigo, Zoladex
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