Internal Medicine Residency

Leadership Overview


Michael Parmacek, MD, Chair Department of Medicine

Michael Parmacek MDDr. Parmacek performed residency training in Internal Medicine at the University of Michigan. He performed clinical and research fellowship training in Cardiology at Northwestern. Following fellowship training he performed a postdoctoral research fellowship at the HHMI at the University of Michigan. Dr. Parmacek was appointed to the faculty of the Department of Medicine (Cardiology) at Michigan (1987-92). He then joined the faculty of the University of Chicago serving as Co-Chair of the Cardiology Fellowship training program (1992-1998). Dr. Parmacek was recruited to Penn, where he served as Chief of the Cardiovascular Medicine Division from 1998 until 2014. During his tenure, the Cardiovascular Division ascended to the top tier of academic cardiology divisions in the United States. Dr. Parmacek was appointed founding Director of the Penn Cardiovascular Institute in 2005. The Parmacek laboratory is recognized for discoveries influencing understanding of the molecular and genetic basis of congenital heart disease, diseases of the aorta, heart failure and regenerative biology. Dr. Parmacek has been elected to the ASCI, AAP, and he has served on the Advisory Council of the NHLBI.

Lisa Bellini, M.D, Program Director

Lisa Bellini, M.D.

Dr. Bellini obtained her medical degree from the University of Alabama in 1990. She came to Penn to pursue her Internal Medicine residency training followed by a year as a Chief Medical Resident. She subsequently completed a Pulmonary Fellowship and joined the faculty in 1996.

Dr. Bellini currently serves as the Vice Chair of Education and Inpatient Services for the Department of Medicine. In that role, she is responsible for education in the Department of Medicine as well as the department’s inpatient bed complement. As Program Director of the Internal Medicine Residency since 1996, she directly oversees 154 residents in one of the nation’s best training programs and is indirectly responsible for the training of an additional 150 subspecialty fellows.

From 2005-2008, she was the Associate Dean for Graduate Medical Education and Designated Institutional Official for University of Pennsylvania Health System. In that role, she had operational responsibility for all policies and procedures related to the training of residents and fellows in all 68 UPHS sponsored training programs as well as to insure that all programs were operating in substantial compliance with the ACGME institutional and program requirements.

In 2008, she assumed the role of Vice Dean for Faculty Affairs for the Perelman School of Medicine. In that role, she has oversight faculty policies and procedures Perelman School of Medicine at the University Pennsylvania.

On a national level, Dr. Bellini is an active member of the Alliance of Academic Internal Medicine (AAIM) where she served as inaugural Chair of the Board. AAIM is a consortium of five academically focused specialty organizations representing departments of internal medicine at medical schools and teaching hospitals in the United States and Canada. It represents department chairs and chiefs; clerkship, residency, and fellowship program directors; division chiefs; and academic and business administrators as well as other faculty and staff in departments of internal medicine and their divisions. Previously, she has held the positions of Treasurer and President of the Association for Program Directors in Internal Medicine. Currently she chairs the AAIM Innovations Committee. She also chairs the Committee on Faculty Identity for the AAMC and is a member of their national GME task force. Additionally, she has served on several key committees for the Accreditation Council for Graduate Medical Education, using much of her research and administrative experience to influence national policy regarding graduate medical education. She was also a member of the Institute of Medicine's committee on Conflict of Interest, which has had a major impact on professional conduct within the academic community.

Dr Bellini has won numerous teaching awards including the Penn Pearls Teaching Award, the Maurice Attie and Donna McCurdy Teaching Awards, as well as the Robert Dunning Dripps Award for Excellence in Graduate Medical Education and the University wide Lindbach award. Her research focuses on medical education, including the health and well-being of residents and faculty as well as the effects of fatigue and sleep deprivation on patient outcomes and the learning environment.

Todd Barton, M.D, Associate Program Director

Todd Barton, MD

Todd Barton is the Senior Associate Program Director, and an Associate Professor of Clinical Medicine in the Division of Infectious Diseases. Todd was raised in St. Louis, where he attended high school and became a fervent Cardinals fan. He went to medical school at the University of Rochester, where he led an AIDS education task force during the first two years. Between second and third years of medical school, Todd did a year out research project with the Immunodeficiency Program at Penn, where his interest in caring for HIV-infected patients was cemented. Todd then came to Penn for internship, residency, chief residency, infectious diseases fellowship, and faculty life. Todd attends on multiple infectious disease services including bone marrow transplant and HIV services, and has an outpatient practice with a mix of HIV, Lyme, and general infectious disease patients. He has won several teaching awards from medical students, residents, and fellows during his time on faculty at Penn. Todd also enjoys coaching some of his kids’ sports teams and wasting time playing video games when not in the hospital.

Karen Warburton, M.D, Associate Program Director

Karen Warburton, MD

Dr. Warburton is an Associate Professor of Clinical Medicine in the Renal, Electrolyte and Hypertension Division at the University of Pennsylvania. She is also an Associate Program Director for the Internal Medicine Residency Program. Her clinical interests include transplant nephrology and complex hypertension. Additional interests involve the coaching and remediation of struggling learners at all stages of training. She has been involved on the national level with the American Society of Nephrology's campaign to improve nephrology education and increase interest in nephrology careers.  

Jessica Dine, M.D, Associate Program Director

Jessica Dine, MD

Dr. Dine is an Assistant Professor in the Division of Pulmonary, Allergy and Critical Care. She is also an Associate Program Director for the Internal Medicine Residency Program. Dr. Dine’s clinical focus is on consultative pulmonary medicine. Her research interests include understanding and measuring clinical leadership and creating measures of supervision, influence and training in medical education.

Judd Flesch, M.D, Associate Program Director

Judd Flesch, MD

Dr. Flesch is an Assistant Professor of Clinical Medicine in the Division of Pulmonary, Allergy, and Critical Care. He also serves as an Associate Program Director for the Internal Medicine Residency Program and Site Director for the Residency Program at Penn Presbyterian Medical Center (PPMC). Dr. Flesch’s clinical interests include consultative pulmonology and respiratory failure. He attends on the General Medicine Service, the Pulmonary Consultation Service, and the Medical Intensive Care Unit at PPMC. He is also an Associate Director of the Penn Medicine Program for LGBT Health, and has an interest in the climate for LGBT medical trainees and educating trainees in the care of LGBT patients.

Val Amorosa, M.D, Associate Program Director

Val Amorosa, MD

Val Amorosa is an Associate Professor of Clinical Medicine in the infectious diseases division at Penn. She is an Associate Program Director for the Internal Medicine Residency Program and the site director for the program at the Philadelphia Veterans Affairs Medical Center where she works with the Chief Medical Resident to oversee the medicine residents rotating at the VA. She also serves as Chief of the Infectious Diseases Section at the VA. She attends on the inpatient infectious diseases services at HUP and the VA and also attends on the medicine service at the VA. Her outpatient focus is HIV and viral hepatitis.

Jeffrey Jaeger, M.D, Associate Program Director

Jeffrey Jaeger, MD

Dr. Jaeger is Professor of Clinical Medicine in the Division of General Internal Medicine. Dr. Jaeger oversees the continuity clinic experience at the 4 resident-faculty practice sites where Penn residents follow panels of patients. He precepts residents in continuity clinic at the Penn Internal Medicine Associates and serves as a mentor for residents considering careers in outpatient general internal medicine. He is the past-president of the Mid-Atlantic Region of the Society of General Internal Medicine, where he currently serves as the co-chair of the Health Policy Education Subcommittee. He has an interest in the role of physicians in the detection and prevention of domestic violence, and has participated in the development of guidelines surrounding screening for domestic violence. His current interests are in Graduate Medical Education health policy, and education of physicians in the skills of quality improvement. .

David Aizenberg, M.D, Associate Program Director

David Aizenberg, MD

Dr. Aizenberg is an Assistant Professor of Clinical Medicine in the Division of General Internal Medicine. His clinical time is divided between outpatient primary care, inpatient general medicine, and outpatient consultative medicine. He is a preceptor and Assistant Director of Ambulatory Resident Education at the Penn Internal Medicien Associates. Dr. Aizenberg’s interests include educational innovation and he has spear-headed the program’s transition to a 6+2 intern scheduling system and the addition of a theme-based ambulatory curriculum.

Serena Cardillo, M.D, Associate Program Director

Serena Cardillo, MD

Dr. Cardillo is an Associate Professor of Clinical medicine in the Division Endocrinology, Diabetes & Metabolism. She is also an Assistant Program Director and Core Faculty Member in Endocrinology for the Internal Medicine Residency Program. Dr. Cardillo’s clinical practice is based at the Penn Rodebaugh Diabetes Center where she specializes in the management of patients with Type 1 and Type 2 diabetes as well as transplant associated and cystic fibrosis related diabetes. She also serves as the Director of Graduate Diabetes Education for the center. Dr Cardillo serves as the Director of the Interactive Learning Module Curriculum for internal medicine interns. Her interests in medical education are in the use of simulation to assess and teach communication skills. At the postgraduate level she has led several innovative national education programs in the area of diabetes management for primary care providers.