I have been a Pt of Dr David Keith Mass General Hospital for 27yrs. I was a firefighter who fell off a moving fire truck. I fractured of C4, C5 and had bilateral fractures of condyles. He and his office manager Jenny take the time to listen. He uses the most conservative methods to solve your problems. I'm now 60yrs old and retired. I have not spoke to Dr David Keith in years, but I know if I were to call his office tomorrow he would see me as soon as possible and they say firefighters are the heroes