Miami´s Health District (just like a health campus) has the largest US concentration of medical and research facilities after Houston. The largest is the public hospital, Jackson Memorial Hospital.
(The District is only 5 miles from Coconut Grove and 3.4 from Brickell. You do not need a car. Uber or Lyft can do it very inexpensively for you. Also, tell us how we can help you during your visit.)
Some hospitals have a remarkable reputation. For instance, the BASCOM PALMER EYE INSTITUTE at UHealth (the University of Miami Health System) has been ranked for the 12th consecutive year the NATION´S BEST in ophthalmology by U.S. News & World Report in its 2015-2016 Best Hospitals edition.