Brothers, Steven the older. Steve had I believe a concierge MD practice in the NY area and now is in nephrology. Jeffrey was dean of the med school but operated a clinic/lab specializing in diabetes. I don’t know if that qualifies as a “teaching” hospital.
Don't know how familiar you are with the "Longwood Medical Area" but it consists of the Medical School itself,the Dental School,the School of Public Health,more clinics and research buildings than you can shake a stick at and several of the big teaching hospitals.In addition there's Massachusetts General which is a couple of miles away but,nevertheless,is the largest and most important institution affiliated with HMS.
And the New England Patriots of course! ;-)