Eisai Inc.

1. John Hemphill Neurology with Special Qualifications in Child Neurology · Savannah, GA $128,206 123 payments
2. Adam Wolff Neurology · Denver, CO $122,071 127 payments
3. Amina Ahmed Gynecologic Oncology · Chicago, IL $114,391 67 payments
4. Mahdi Taha Medical Oncology · Boca Raton, FL $104,868 108 payments
5. Daniel Weintraub Psychiatry · Philadelphia, PA $101,122 10 payments
6. Paul Schulz Behavioral Neurology & Neuropsychiatry · Houston, TX $93,614 96 payments
7. John Bertelson Behavioral Neurology & Neuropsychiatry · Austin, TX $89,441 108 payments
8. John Chan Gynecologic Oncology · San Francisco, CA $81,693 48 payments
9. Brent Berry Neurology · Golden Valley, MN $80,790 108 payments
10. Heidi Godoy Gynecologic Oncology · Albany, NY $73,191 75 payments

1. Yale University $3,435,958 54 payments
2. Gonzalez MD And Aswad MD Health Services $3,060,425 50 payments
3. Washington University $2,826,529 45 payments
4. Renstar Medical Research $1,562,669 46 payments
5. Central States Research LLC $1,140,890 29 payments
6. University Of Kentucky Research Foundation $1,136,123 43 payments
7. Advanced Clinical Research Network, Corp. $1,100,206 4 payments
8. Brigham And Womens Hospital Teaching hospital · MA $1,083,381 42 payments
9. Keystone Clinical Studies LLC $1,034,332 47 payments
10. Charter Research $982,033 45 payments

1. Leqembi Neurology $2,995,635 58% · 10,317 recipients
2. Lenvima Oncology $2,180,808 42% · 7,080 recipients
3. Halaven Oncology $68 <1% · 1 recipient

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.

1. Neurology Psychiatry & Neurology $1,709,210 35% · 2,607 practitioners
2. Hematology & Oncology Internal Medicine $521,659 11% · 2,045 practitioners
3. Gynecologic Oncology Obstetrics & Gynecology $521,197 11% · 331 practitioners
4. Medical Oncology Internal Medicine $416,332 8% · 600 practitioners
5. Nurse Practitioner, Family Nurse Practitioner $231,777 5% · 2,710 practitioners

The top 5 of 156 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

1. California $669,721 13% · 1,559 recipients
2. Florida $543,439 10% · 2,222 recipients
3. Texas $468,325 9% · 1,719 recipients
4. New York $318,829 6% · 1,048 recipients
5. Pennsylvania $286,810 5% · 621 recipients

The top 5 of 54 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

1. Consulting Fee $46,471,509 5,364 payments
2. Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $7,798,829 5,740 payments
3. Food and Beverage $6,846,661 291,964 payments
4. Compensation for serving as faculty or as a speaker for a medical education program $4,968,131 3,170 payments
5. Travel and Lodging $2,946,677 9,109 payments
6. Space rental or facility fees (teaching hospital only) $1,049,682 438 payments
7. Grant $621,200 92 payments
8. Education $62,110 1,846 payments

1. Eisai Co., Ltd. Japan $595,207

Grouped by name only. CMS publishes no corporate ownership, so a shared name does not mean a shared parent.