5 /5 Karen Milano: Dr. Mercer has been my doctor since 2011. I have a lot of complex medical conditions and I really needed a doctor that I could trust and depend on. I have had many admits to the hospital and he has been there everyday, attending to me. He answers every call I make to him and always explains everything to me. He truly is exceptional! In addition, he has the best staff. They are always on the ball and handle everything promptly. Truly wonderful ! Thank you to all of you !