Gregory K. Buller is the Chairman of the Department of Medicine and Program Director of the Internal Medicine Residency Program at St. Mary's Hospital. He is an Associate Clinical Professor of Medicine at Yale University School of Medicine and is board certified in Nephrology and Hypertension.

Dr. Buller received his medical degree from the University of Kansas, subsequently completing his residency and chief residency at Duke University. He was a National Kidney Foundation Fellow at Duke, and later a faculty member in the Division of Nephrology.

Dr. Buller has authored or coauthored more than 75 scientific publications and has served on editorial panels and as a reviewer for several medical journals.  His current areas of research interest include the renal and blood pressure effects of NSAIDs, potassium homeostasis and the cardiovascular effects of potassium perturbations, the extrahepatic manifestations of hepatitis C. and the treatment of various renal diseases.  Dr. Buller maintains a strong personal interest in general medical education and has been the recipient of “Teacher of the Year” award given by the Yale Residency Program multiple times in the past 15 years.  He has also served as a Visiting Professor at a number of academic institutions and frequently lectures across the country on a variety of medical topics.  His proudest professional achievement remains the tremendous success enjoyed by his former residents, whose careers vary from NIH and other basic science researchers, to professors of medicine at various academic institutions, to local internists and subspecialists.

Jason R. Ouellette is an Associate Program Director for the Internal Medicine Residency Program and an Assistant Clinical Professor for the Yale University School of Medicine. Dr. Ouellette graduated from Boston University School of Medicine in 2001. He completed his residency in the Yale Traditional Internal Medicine Program in 2004 and is board certified in Internal Medicine.

He is a member of the American College of Physicians, American Medical Association, Society of General Internal Medicine and the Association of Program Directors in Internal Medicine.

Henry Compton Gift, MD, is the Medical Director of the Saint Mary’s Family Health Center and is the Associate Program Director for the residency program in charge of ambulatory education. Born in Guyana, South America, Dr. Gift was a mathematics teacher in Guyana prior to attending the University of Connecticut from 1963 - 1966. He delayed his studies to serve in the United States Army as Section Chief Of Microbiology And Parasitology at the United States Army Hospital in Heidelberg, West Germany, for two years. Following an honorable discharge from the Army, Dr. Gift graduated from Central Connecticut State University with a bachelor's degree in Biology. He then earned an M.P.H. degree in Epidemiology and Environmental Health from Yale University School of Public Health and his medical degree from the University of Connecticut School of Medicine. Dr. Gift completed an Internal Medicine residency and chief residency at Saint Mary’s Hospital.

Dr. Perazella serves as Scientific Director in charge of research and mentorship for faculty and medical students and acts as the on-site supervisor of our residents when they rotate in New Haven. He is the Director of the Yale Nephrology Fellowship Program and an Associate Professor of Medicine at Yale. Having been awarded the Yale Teaching Award, Mark has long been acknowledged as a premier educator there. He is a graduate of New York Medical College and a graduate of the Saint Mary’s Hospital Internal Medicine Residency Program. He currently serves as an editor of several Nephrology and General Medicine journals.

Dr. Talwalkar graduated from Tufts University School of Medicine in 2000.  He completed his residency in the Yale Medicine-Pediatrics Residency Program, and spent a year as Pediatric Chief Resident at Yale.  He is board certified in Internal Medicine and Pediatrics.  Dr. Talwalkar’s interests include primary care residency education, curriculum development and evaluation, resident teaching skills development, cystic fibrosis, and transition of care.  He sees general internal medicine and pediatric patients at the Children’s and Family Health Center in Waterbury, CT.  He also serves as Associate Director of the Yale Cystic Fibrosis Adult and Transition Clinics at Yale-New Haven Hospital.  He supervises residents and medical students in both the inpatient and outpatient settings at Yale and St. Mary’s Hospital.

Leigh received her Masters Degree in Health Care Management from Hartford Graduate Center and has been part of the Saint Mary’s Hospital family since 1982. She is the Program Coordinator for the Internal Medicine Residency Program, supervising every aspect of resident recruitment and other vital program functions. She is coordinator, mother, and friend to our residents.