Manufacturer or GPO Program year 2025 Source: CMS Open Payments

Karyopharm Therapeutics Inc.

MA, United States

CMS manufacturer 100000806841

Open in the dashboard

General payments

$7,933,189

29,773 payments

Research payments

$49,443,430

11,041 payments

Ownership & investment interest

$0

None reported

Through program year 2025, Karyopharm Therapeutics Inc. reported paying $7,933,189 in general payments and $49,443,430 in research payments to U.S. physicians, teaching hospitals and other recipients.

No combined total These are different kinds of money, reported under different rules. A meal and a clinical trial grant do not add up to anything meaningful, so this site does not add them.

By program year

12 rows
Year Kind Amount Payments
2025 General $682,256 4,926
2025 Research $7,942,722 4,061
2024 General $1,006,760 5,247
2024 Research $4,609,057 2,075
2023 General $1,172,115 6,046
2023 Research $6,430,663 1,371
2022 General $1,581,027 5,621
2022 Research $9,090,266 1,011
2021 General $2,105,763 4,703
2021 Research $10,919,502 1,284
2020 General $1,385,269 3,230
2020 Research $10,451,220 1,239

Breakdown

Top recipients General payments · program year 2025
  1. Taral Patel Hematology & Oncology · Columbus, OH $50,698 34 payments
  2. Mojtaba Akhtari Hematology & Oncology · Omaha, NE $48,424 22 payments
  3. Hakan Kaya Medical Oncology · Spokane, WA $40,888 25 payments
  4. Rajesh Behl Hematology & Oncology · Berkeley, CA $26,808 19 payments
  5. James Berenson West Hollywood, CA $17,846 25 payments
  6. Rahul Naik Hematology & Oncology · Los Angeles, CA $15,274 9 payments
  7. Suresh Ratnam Medical Oncology · McAllen, TX $14,662 7 payments
  8. Binod Dhakal Hematology & Oncology · Milwaukee, WI $14,642 9 payments
  9. Kelly McCaul Hematology & Oncology · Sioux Falls, SD $13,563 10 payments
  10. David Hermel Hematology & Oncology · La Jolla, CA $13,399 7 payments
Top research recipients Research payments · program year 2025
  1. City Of Hope National Medical Ctr Teaching hospital · CA $1,273,096 345 payments
  2. Sarah Cannon Research Institute, LLC $671,098 237 payments
  3. University Of Utah Hospital $473,799 384 payments
  4. University Of Tx MD Anderson Cancer Center $345,190 105 payments
  5. University Of Alabama Hospital Teaching hospital · AL $335,323 311 payments
  6. Texas Oncology, P.A - Research Department $267,113 177 payments
  7. Johns Hopkins University $203,315 105 payments
  8. Memorial Sloan Kettering Cancer Center $202,314 96 payments
  9. University Of Washington Med Ctr Teaching hospital · WA $201,503 344 payments
  10. Duke Cancer Center $198,652 55 payments
Products the payments named General payments · program year 2025
  1. Xpovio Oncology $682,256 100% · 2,798 recipients

Each share is of this company’s general payments naming a product in 2025. A payment can name up to five products, so these amounts overlap.

Specialties paid General payments · program year 2025
  1. Hematology & Oncology Internal Medicine $423,727 68% · 1,006 practitioners
  2. Medical Oncology Internal Medicine $101,041 16% · 266 practitioners
  3. Nurse Practitioner, Family Nurse Practitioner $17,833 3% · 442 practitioners
  4. Nurse Practitioner $16,347 3% · 266 practitioners
  5. Internal Medicine $12,796 2% · 74 practitioners

The top 5 of 62 specialties; each share is of this company’s general payments to practitioners with a specialty in 2025. Each practitioner is counted under their primary specialty.

The top 25 specialties, free in the app

Where the money went General payments · program year 2025
  1. California $182,974 27% · 418 recipients
  2. Texas $82,614 12% · 347 recipients
  3. Ohio $65,470 10% · 53 recipients
  4. Washington $43,228 6% · 8 recipients
  5. Florida $37,456 5% · 255 recipients

The top 5 of 48 states; each share is of this company’s general payments in 2025 where a state was reported.

The top 25 states, free in the app

What the payments were for General payments · program years 2020–2025
  1. Honoraria $4,822,822 1,684 payments
  2. Consulting Fee $1,144,946 545 payments
  3. Food and Beverage $733,803 25,562 payments
  4. Travel and Lodging $664,709 1,224 payments
  5. Space rental or facility fees (teaching hospital only) $204,900 65 payments
  6. Charitable Contribution $150,000 1 payment
  7. Grant $82,000 4 payments
  8. Education $61,882 668 payments
  9. Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $53,953 13 payments
  10. Compensation for serving as faculty or as a speaker for a medical education program $14,175 7 payments
29,773 general · 11,041 research

Every payment, record by record

Date, amount, who was paid and what for — filter by year and kind, or download as CSV, free, in files of 5,000 rows.

What you are looking at

Manufacturers of drugs, devices and biologicals, and group purchasing organisations, are required to report the payments and transfers of value they make to physicians and teaching hospitals. This page shows what this company reported.

Provenance

Source: CMS Open Payments · through program year 2025

We reproduce what manufacturers reported. We do not verify, edit or correct the underlying records.

A payment record is not evidence of wrongdoing. Financial relationships between industry and medicine are legal, common and often necessary for research. Who Paid My Doc reports what was disclosed; it does not judge it.

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