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Internal Medicine Residency – Faculty and Staff

The faculty and staff of Saint Mary’s Internal Medicine Residency Program are experts in their respective fields. Residents will benefit from their knowledge, collaborative spirit and passion for providing top-notch medical education.

Internal Medicine Residency Faculty

Dr. Jason Ouellette

Jason R. Ouellette, MD, FACP

Jason R. Ouellette is Chairman of the Department of Medicine, Program Director of the Internal Medicine Residency Program, and an Assistant Clinical Professor at 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 subsequently served as a Clinician Educator for the Yale Primary Care Residency Program and as Associate Program Director of the Saint Mary's Internal Medicine Residency Program.

Dr. Ouellette’s interests include residency program administration and accreditation, curriculum development, resident evaluation, education, recruitment, research and advising. In addition to supervising residents on the inpatient medicine service, he has his own private practice at Saint Mary’s Hospital. He is also a member of the Communication Skills Faculty for students at Yale University School of Medicine.

Dr. Ouellette is a member of the American College of Physicians Executives, Society of General Internal Medicine and the Association of Program Directors in Internal Medicine.


Shawnette Alston, MD

Shawnette Alston, MD

Shawnette Alston is the Associate Program Director of the Internal Medicine Program and serves as Director of Ambulatory Education.

Dr. Alston received her medical degree from Albert Einstein College of Medicine in 2000 and completed her Residency in the Yale Primary Care Internal Medicine Program in 2003. She is board certified in Internal Medicine and a Clinical Instructor at Yale University School of Medicine. She is a member of the Society of General Internal Medicine.


Anu Paranandi, DO, MPH

Anu Paranandi

Dr. Paranandi is the Associate Program Director of the Internal Medicine Residency Program and a Clinical Instructor at Yale University School of Medicine.  She is also an attending in the Infectious Diseases Department at Saint Mary’s Hospital as well as an outpatient infectious diseases/HIV specialist at Waterbury Hospital.  

Dr. Paranandi completed her medical school training at New York College of Osteopathic Medicine, followed by an internal medicine residency at Beth Israel Medical Center/Albert Einstein College of Medicine where she also served as Chief Resident.  She then completed an Infectious Diseases Fellowship at Tufts Medical Center/Tufts University School of Medicine.  She earned her Master of Public Health degree in Epidemiology and Biostatistics from Tufts University School of Medicine.  She is board certified in Internal Medicine as well as Infectious Diseases.


Michael Simms, MD

Michael Simms, MD

Michael Simms joined the faculty in 1984 after completing a fellowship in Infectious Diseases at Brown University School of Medicine. Since that time he has immersed himself in the diagnosis and management of infectious diseases, undergraduate, graduate and postgraduate/peer education, and hospital infection control. During this score of years he has engaged in virtually every aspect and venue of medical education at Saint Mary’s Hospital and lectured at other institutions; has served on and chaired many committees for the improvement of patient care, education, and quality; and has served as Chairman of the Department of Medicine. Dr. Simms is Chief of Infectious Diseases/ Infection Control, Chairman of the Infection Control Committee, an Associate Clinical Professor Of Medicine at Yale University School of Medicine and secretary/treasurer of the Connecticut Infectious Disease Society. When not in the hospital he can be found outdoors in the woods, hiking, biking, kayaking and on rainy days/nights feeding his passion for learning new things, especially American history.


Sina Raissi, MD

 Sina Raissi, MD 

Sina Raissi graduated from Tehran University of Medical Sciences, Tehran, Iran, in 1990. He graduated from Internal Medicine residency program at Wayne State University, Detroit Medical Center in 1998. Subsequently, he received training as a fellow in Nephrology at Emory University. Dr. Raissi joined the Department of Medicine at Saint Mary's Hospital in September 2001 and has been actively involved in clinical teaching of the internal medicine residents on both general medicine, and nephrology rotations.

Dr. Raissi is Board Certified in both Internal Medicine and Nephrology. He is an active member of American Society of Nephrology, American College of Physicians, International Society of Nephrology, and American Society of Hypertension. His primary areas of interest are hypertension, diabetic kidney disease, and electrolyte disorders.


Rebecca Newell, MD

Rebecca Newell, MD

Rebecca Newell is the Director of the Children and Family Health Center and is a Yale University Clinical Instructor and Quinnipiac University Adjunct Associate Clinical Professor. Dr. Newell graduated with a Bachelor of Arts from Cornell University 1995. She received her medical degree from University of Pittsburgh in 2000 and completed a residency in Internal Medicine/Pediatrics at Case Western Reserve - University Hospitals of Cleveland in 2004. She went on to become the first Med/Peds Chief Resident at Case the next year.  She is currently a general practitioner of Internal Medicine and Pediatrics at the Children and Family Health Center. Additionally, Dr. Newell supervises residents in the outpatient setting and teaches medical students, physician assistant students and nurse practitioner students. Dr. Newell’s interests include obesity, diabetes and disparities in healthcare. She is a member of the American College of Physicians, American Academy of Pediatricians and the Society of General Internal Medicine.


Ali Vaezy, MD

Ali Vaezy, MD

Ali Vaezy graduated from the University of Kentucky College of Medicine and completed a combined residency in Internal Medicine and Pediatrics at Yale. He served as chief resident in the Yale Primary Care Medicine Residency Program before joining the faculty at Saint Mary's as a Clinician Educator. He is board certified in Internal Medicine and Pediatrics, and he is an Assistant Clinical Professor of Pediatrics at Yale. He sees both adult and pediatric patients at the Children's and Family Health Center and attends on the inpatient medical service at Saint Mary’s Hospital. His interests include resident education and board review.


Carolina Borz-Baba, MD

Carolina Borz-Baba, MD

Dr. Borz-Baba received her medical degree from the University of Medicine and Pharmacy in Cluj-Napoca, Romania in 1997. She completed her Internal Medicine Residency Training at St. John’s Hospital South Shore in New York where she also served as a Chief Medical Resident. Dr. Borz-Baba has years of experience in hospitalist medicine and is a full-time Inpatient Clinician Educator.  She also serves as our Medical Student Rotation Coordinator.


Arjet Gega, MD

Arjet Gega, MD

Arjet Gega is an infectious diseases attending and faculty of our residency program. He was born and raised in Albania and received his medical degree from Istanbul University Cerrahpasa School of Medicine in Istanbul, Turkey. He completed his internal medicine residency at the University of Florida in Gainesville and his Infectious Diseases fellowship at Yale.  He is board certified in internal medicine and infectious diseases.

Dr. Gega has a special interest in chronic viral diseases including HIV, Hepatitis B and C. He has worked and published his research related to HIV and CNS compartmentalization. He runs the largest Hepatitis C practice in the greater Waterbury area and has participated in many hepatitis C panels as speaker. Dr. Gega is a member of Infectious Diseases Society of America. He is married and has one son and one daughter. When he is not working in the hospital he likes to volunteer in the local Albanian Community Centers, watch and play soccer and spend time with his children.


Rohit Beri, MD

Rohit Beri, MD

Rohit Beri received his medical degree from Post Graduate Institute of Medical Sciences in Haryana, India. He completed his Internal Medicine residency at Jersey Shore University Medical Center where he also served as a chief resident. He subsequently did a Pulmonary and Critical Care Medicine fellowship at University of Illinois, Chicago and joined Saint Mary’s Hospital in July 2009.

He is board certified in Internal Medicine, Pulmonary Diseases, Critical Care and Sleep Medicine. He is a fellow of the American College of Chest Physicians. His clinical interests include sepsis, lung cancer, bronchoscopy, pulmonary HTN, sleep disordered breathing and pulmonary physiology. In addition to supervising residents in the ICU and pulmonary rotation, he has a private pulmonary practice.

He is the Director of the Intensive Care Unit at Saint Mary’s Hospital.


Howard Zhang, MD

Howard Zhang, MD

Howard Zhang received his medical degree from Shandong Medical University, China and PhD in pharmaceutical science from University of Rhode Island. He completed his internal medicine residency training at Saint Mary's Hospital, Waterbury, CT, and pulmonary and critical care fellowship at University of Maryland Medical System, Baltimore, MD. He received multiple awards during his residency and fellowship training. He returned to Saint Mary's Hospital as a pulmonary and critical care consultant in 2011. He is board certified in internal medicine, pulmonary and critical care medicine. He supervises residents and medical students in pulmonary and critical care services.

He is the Associate Director of the Intensive Care Unit at Saint Mary’s Hospital.


Santhi Singanamala, MD

Santhi Singanamala, MD

Santhi Singanamala received her medical degree from Guntur Medical College, India and subsequently received post graduate training in Anesthesiology from Osmania Medical College, India and worked as an attending in Anesthesiology before coming to the U.S.. She subsequently did her residency in Internal Medicine at Saint Mary’s Hospital and joined the faculty as a Clinician Educator.  She received multiple awards during her residency training including “Outstanding Resident” and “The Henry Compton Gift Award for Outstanding Primary Care”.  She is board certified in Internal Medicine.  Her interests include primary care and resident education.  She is married with two children.


Saurabh Ranjan, MD, BOT, MBBS

Saurabh Ranjan, MD, BOT, MBBS

Dr. Ranjan is an inpatient clinician educator and core faculty member for our Internal Medicine Residency Program.  He started his medical career with a bachelor degree in Occupational Therapy from Delhi University, India. He subsequently completed his medical training at Swami Rama Himalayan University. He worked for four years in the United Kingdom before completing his internship and residency at Saint Mary's Hospital.  He subsequently worked for 3 years as an Academic Hospitalist at Saint Mary's Hospital before joining our core faculty. 

He has a strong interest in bedside ultrasound, physical examination and bedside teaching and oversees our ultrasound curriculum. He has developed several clinical care protocols. He is very involved in the teaching of our medical students.


Internal Medicine Residency Staff

 Leigh Aronin

Leigh Aronin

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.


Lisa Trusch

Lisa Trusch

Lisa is the Assistant Program Coordinator for the Internal Medicine Residency Program. Lisa joined Saint Mary’s Hospital in May 2007. She was previously employed by Aetna Life and Casualty as the Legal Department Recruiting Coordinator. Her prior experience also includes employment by United Technologies in Windsor Locks, CT, as well being an Independent Medical Transcriptionist. She earned her Bachelor’s degree from the University of Connecticut and also holds an AS Degree from Bay Path University in Longmeadow, Massachusetts.


Dan Keifer

Dan Keifer

Dan received his Associates Degree in Electronics Engineering from the Community College of the Air Force. He serves as a Residency Support Specialist, providing administrative and technology support to the Department, coordinating resident schedules and educational conferences, and maintaining the program’s online supports and resources.