Meet Our Physicians

ROBERTO BAUN CORALES, D.O.
Medical Director and Staff Physician
Dr. Corales is the current Medical Director at AIDS Community Health Center. He is a graduate of Michigan State University’s College of Osteopathic Medicine. Dr. Corales completed his infectious diseases training at the Cleveland Clinic and joined AIDS Community Health Center in 2000. He is Board Certified in Internal Medicine and was recently certified as an HIV specialist.

He is active in clinical trials investigations and has written and lectured frequently on a variety of HIV-related topics including new antiretroviral drugs, novel treatments for HIV, and AIDS Community Health Center’s one-stop-shop model of care.
View publications by Dr. Corales


MICHAEL D. MANCENIDO, D.O.
Staff Physician
Dr. Michael Mancenido joined ACHC in December 2006 as a full-time Spanish-speaking staff physician. After graduating from the University of New England College of Osteopathic Medicine in June 2001, Dr. Mancenido completed both a residency in Internal Medicine and fellowship in Infectious Diseases at the University of Massachusetts Medical School. He is Board Certified in Internal Medicine and Infectious Diseases and was recently certified as an HIV specialist.

His commitment to increasing healthcare accessibility for the underserved has led him to pursue several volunteer opportunities. In 2005 Dr. Mancenido spent several weeks in the Dominican Republic helping to create a satellite HIV clinic. Most recently, Dr. Mancenido spent 6 weeks at the Dessie Regional Referral Hospital in Ethiopia, training local HIV healthcare providers, and offering HIV prevention education to the community.


WILLIAM M. VALENTI, M.D.
Co-Founder and Staff Physician
Dr. Valenti is a graduate of the Medical College of Wisconsin and is a co-founder of AIDS Community Health Center (1989). He is Clinical Associate Professor of Medicine at the University of Rochester School of Medicine and Dentistry and completed his Infectious Diseases training at the University of Rochester. 

He has been active in HIV-related activities since the early 1980s and is chair of the HIV and Hepatitis Advisory Panel of the Medical Society of the State of New York. He has published more than 150 peer-reviewed articles, book chapters and scientific abstracts on HIV medical care, infectious diseases and health care epidemiology and infection control. Dr. Valenti has recently served as Chair of the Hepatitis C Guidelines Committee for the New York State Department of Health.
View publications by Dr. Valenti