Dr. Daniel Hale Williams is often described as the first person to successfully perform an open-heart surgery. That's not entirely accurate, but he was still a surgical innovator, and he was also a huge part of the Black Hospital Movement.
Research:

Unearthed Year-end 2025, Part 2
40:40

Unearthed Year-end 2025, Part 1
43:00

SYMHC Classics: P.A.R.C. and Mills
25:37