Each figure is one return, as filed. A grantee's grants out are not shown to be the money it received: money is interchangeable, and two organizations' tax years can cover different months, so a grant received in one organization's 2023 can sit beside grants made in the other's 2023 without being the same dollars. Only grants over $5,000 are itemized, and private foundations' returns (990-PF) are not read here.

1. MOUNT SINAI MEDICAL CENTER OF FLORIDA INC EIN 59-0624424

   Received $285,000 from FLORIDA HEART RESEARCH FOUNDATION INC · 2023 return

   Its grants paid, 2023: $150,000

   • MIAMI BEACH COMMUNITY HEALTH CENTER · 2023

     $150,000

2. MAYO CLINIC EIN 41-6011702

   Received $190,729 from FLORIDA HEART RESEARCH FOUNDATION INC · 2023 return

   Its grants paid, 2023: $937,924,597

   • MAYO CLINIC JACKSONVILLE · 2023

     $346,091,887

   • MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH · 2023

     $266,042,435

   • MAYO CLINIC ARIZONA · 2023

     $113,448,437

   • MCHS--SOUTHWEST MINNESOTA REGION · 2023

     $73,837,259

   • MCHS--SOUTHEAST MINNESOTA REGION · 2023

     $33,379,033

3. FLORIDA ATLANTIC UNIVERSITY FOUNDATION INC EIN 59-0917284

   Received $187,253 from FLORIDA HEART RESEARCH FOUNDATION INC · 2023 return

   Its grants paid, 2023: $38,972,136

   • FLORIDA ATLANTIC UNIVERSITY · 2023

     $18,614,241

   • FLORIDA ATLANTIC UNIVERSITY · 2023

     $14,527,695

   • FLORIDA ATLANTIC UNIVERSITY · 2023

     $5,539,339

   • FLORIDA PREPAID COLLEGE FOUNDATION · 2023

     $290,861

4. MAYO CLINIC EIN 59-0714831

   Received $51,685 from FLORIDA HEART RESEARCH FOUNDATION INC · 2025 return

   No itemized grants on its 2025 return.

5. MEMORIAL FOUNDATION INC EIN 59-2082218

   Received $20,000 from FLORIDA HEART RESEARCH FOUNDATION INC · 2025 return

   Its grants paid, 2025: $6,672,425

   • SOUTH BROWARD HOSPITAL DISTRICT DBA MEMORIAL HEALTHCARE SYSTEM · 2025

     $6,398,164

The API serves every itemized grant, in both directions.