Internal Medicine Residency

Leadership Overview


Richard P. Shannon, MD, Chair Department of Medicine

Richard Shannon MDDr. Richard Shannon did his training in internal medicine at Beth Israel Hospital, his cardiovascular training at Massachusetts General Hospital, and was the Francis Weld Peabody fellow and associate professor of medicine at Harvard Medical School before becoming the Claude R. Joyner Professor of Medicine at Drexel University College of Medicine and the Chair of the Department of Medicine at Allegheny General Hospital. Both Harvard Medical School and Drexel University College of Medicine have honored him with numerous teaching awards. His investigative interests are in the area of myocardial metabolism and retroviral infection. Over 20 post doctoral and clinical cardiology fellows have trained in his laboratory. Dr. Shannon’s pioneering work in patient safety has been featured in the Wall Street Journal and ABC’s "20/20", and he has served as a mentor for the IHI 100,000 Lives campaign. His work on patient safety was recently a centerpiece for the PBS feature entitled "Remaking American Medicine." He also sits on the Governor’s Special Panel on Patient Safety and is a member of the Technical Advisory Group of the Pennsylvania Healthcare Cost Containment Council.

Lisa Bellini, M.D, Program Director

Lisa Bellini, M.D.

Dr. Bellini completed her training in internal medicine at the University of Pennsylvania, where she was a chief resident, then went on to complete her Pulmonary fellowship at Penn as well. She spends a large portion of her time teaching all levels of trainees. Given the concentration of teaching experiences on the inpatient services, Dr. Bellini is responsible for the organization and maintenance of the inpatient medicine services that cover over 220 beds and 15,000 admissions per year. This includes oversight for the Penn Hospitalist Program for general medicine inpatients. In 2008, she was appointed Vice Dean for Faculty and Resident Affairs for the Perlman School of Medicine at the University of Penn. In this role, she has a direct impact on issues of major importance to faculty and residents across the school. Her primary research interests involve the design, implementation and evaluation of new educational initiatives. Current interests involve issues related to house staff quality of life including sleep deprivation, depression, burn out and empathy. Her clinical interests include general pulmonary medicine, particularly advanced lung disease.

Todd Barton, M.D, Associate Program Director

Todd Barton, MD

Dr. Barton's interests are focused in clinical infectious diseases and medical education. His clinical time is spent predominantly on the bone marrow and solid organ transplant services, and he has completed several small research projects investigating infections in these immunocompromised patients. Dr. Barton also serves as the Associate Program Director for the internal medicine residency program at Penn.

Karen Warburton, M.D, Associate Program Director

Karen Warburton, MD

Dr. Warburton is an Assistant 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 and is the Site Director for Medicine at the Philadelphia VA Medical Center, where she oversees the clinical and educational experience for medical students and residents rotating on Internal Medicine services at the VA.  Her clinical interests include transplant nephrology and complex hypertension.  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. 

Ilene M. Rosen, M.D, Associate Program Director

Ilene Rosen, MD

Dr. Rosen is an Assistant Professor of Clinical Medicine in the Department of Medicine at the University of Pennsylvania School of Medicine. She has dual appointments in the Division of Sleep Medicine and the Pulmonary, Allergy and Critical Care Division. Within the residency program, her educational interests are primarily focused around evidence based practice and critical appraisal of the medical literature. Recently, Dr. Rosen has further expanded her educational interests by taking over as the Director of the Clinical Sleep Fellowship in the Division of Sleep Medicine. Additionally, she oversees the sleep medicine curriculum for the Pulmonary and Critical Care Fellowship program which complements her clinical interests in both general pulmonary and sleep medicine. Dr. Rosen is very interested in the issues surrounding sleep, fatigue and housestaff training. She has done several studies in medical housestaff looking at the effects of sleep deprivation, including resident call schedules and required duty hours. Her clinical interests include sleep medicine with a specific interest in sleep cardiovascular diseases associated with sleep apnea. She is the leader of several niche programs within the Penn Sleep Center, including sleep apnea in patients with congestive heart failure as well as sleep disordered breathing in patients with recurrent atrial fibrillation. She serves as an attending physician on the inpatient Pulmonary Consultation Service and Sleep Medicine Consultation Service at the Hospital of the University of Pennsylvania.

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 completing his Pulmonary and Critical Care Fellowship at Penn in December 2013, and he will join the faculty as an Assistant Professor of Clinical Medicine in January 2014. 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 will serve as an attending physician on the General Medicine Service, the Pulmonary Consultation Service, and the Medical Intensive Care Unit at PPMC.