Argenx US, Inc.

1. Pamela Klein Hematology & Oncology · San Francisco, CA $509,601 60 payments
2. Tufts Medical Center Teaching hospital · MA $378,250 4 payments
3. Kenneth Gorson Neurology · Wellesley, MA $229,632 4 payments
4. Jeffery Allen Neurology · Minneapolis, MN $119,703 32 payments
5. Dinesh Khanna Rheumatology · Ann Arbor, MI $101,930 22 payments
6. Raghav Govindarajan Neuromuscular Medicine · O Fallon, IL $83,277 91 payments
7. Mark Bromberg Neurology · Salt Lake City, UT $74,534 30 payments
8. Barry Vaught Neurology · Crab Orchard, WV $70,498 68 payments
9. Chafic Karam Neurology · Portland, OR $70,106 29 payments
10. Samir MacWan Neuromuscular Medicine · Rancho Mirage, CA $64,434 53 payments

1. National Neuromuscular Research Institute, PLLC $630,821 251 payments
2. Massachusetts General Hospital Teaching hospital · MA $622,107 11 payments
3. Stanford University $570,572 23 payments
4. The University Of South Florida $475,632 178 payments
5. Tufts Medical Center Teaching hospital · MA $459,250 9 payments
6. University Of Alabama Hospital Teaching hospital · AL $415,492 27 payments
7. Northwestern University $406,961 56 payments
8. Duke University Medical Center $358,105 41 payments
9. Clinical Research of West Florida, Inc. $352,567 208 payments
10. Houston Neurocare PA $344,828 99 payments

1. Vyvgart Immunology $2,127,704 56% · 2,860 recipients
2. VYVGART Hytrulo Neurology $1,565,175 41% · 5,011 recipients
3. Vyvgart Hytrulo Neurology $108,269 3% · 13 recipients
4. Vyvgart Immunology $11,975 <1% · 4 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.

1. Neurology Psychiatry & Neurology $2,274,308 52% · 2,706 practitioners
2. Neuromuscular Medicine Psychiatry & Neurology $547,617 13% · 80 practitioners
3. Hematology & Oncology Internal Medicine $516,442 12% · 20 practitioners
4. Rheumatology Internal Medicine $261,935 6% · 87 practitioners
5. Nurse Practitioner, Family Nurse Practitioner $82,237 2% · 924 practitioners

The top 5 of 127 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 $1,061,014 21% · 567 recipients
2. Massachusetts $695,168 14% · 74 recipients
3. New York $330,566 7% · 435 recipients
4. Florida $271,948 5% · 664 recipients
5. Illinois $270,748 5% · 166 recipients

The top 5 of 52 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 $6,002,810 1,472 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 $4,176,592 1,616 payments
3. Food and Beverage $1,744,623 59,555 payments
4. Travel and Lodging $1,214,277 3,447 payments
5. Space rental or facility fees (teaching hospital only) $423,550 69 payments
6. Grant $398,517 12 payments
7. Royalty or License $273,000 5 payments
8. Education $7,861 212 payments
9. Charitable Contribution $5,000 1 payment