Program Leadership

Michael D. Gibbons, MD
Program Director
Hospitalist, Department of Medicine

Medical School: University of Kentucky
Residency: Vanderbilt University Medical Center
Year joined staff: 2015

Allison S. Chatalbash, MD
Assistant Program Director
Hospitalist, Department of Medicine

Medical School: New York University School of Medicine, New York, NY, 2009
Residency: Mount Sinai Medical Center, New York, NY, 2012
Year joined staff: 2012

Kristin A. Cox, MD
Medical Director of Quality and Safety; Director of the QI Elective
Assistant Chair, Department of Medicine
Hospitalist, Department of Medicine

Medical School: Weill Cornell Medical College, New York, NY, 2007
Residency: Beth Israel Deaconess Medical Center, Boston, MA, 2010
Year joined staff: 2010

Lawrence S. Friedman, MD
Chair, Department of Medicine

Medical School: Johns Hopkins University, Baltimore, MD, 1978
Residency: Johns Hopkins Hospital, Baltimore, MD, 1981
Fellowship: Gastroenterology, Massachusetts General Hospital, Boston, MA, 1984
Year joined staff: 2003

Mark S. Drapkin, MD
Associate Chief, Infectious Diseases
Howland Master Clinician

Medical School: State University of New York – Downstate Medical Center, Brooklyn, NY, 1969
Residency: State University – Kings County Medical Center, Brooklyn, NY, 1971
Massachusetts General Hospital, Boston, MA 1974
Fellowship: Infectious Diseases, Massachusetts General Hospital, Boston, MA, 1975
Year joined staff: 1975

Charudutt Paranjape, MD
Chief, General Surgery and Acute Care Surgery
Associate Chair, Education

Medical School: B.J. Medical College, Pune India, 1993
Residency: King Edward Memorial Hospital 1998, Cleveland Clinic Akron General, 2007
Fellowship: Surgical Critical Care, Beth Israel Deaconess Medical Center, 2008
Year joined staff: 2017

Dennis Beer, MD
Chief, Pulmonary Medicine and Critical Care

Medical School: University of Pittsburg, Pittsburg, PA, 1974
Residency: William Shands Teaching Hospital and Clinics and the
Gainesville Veterans Administration Hospital, University of Florida, Gainesville, FL, 1977
Fellowships: Pulmonary, Boston University, Boston, MA, 1979 & Allergy and Immunology, Tufts-New England Medical Center, Boston, MA, 1981
Year joined staff: 1993

Mark Lemons, MD
Chair, Department of Emergency Medicine

Medical School: Medical College of Wisconsin, Milwaukee, WI, 1984
Residency: Worcester City Hospital and
University of Massachusetts Medical Center, Worcester, MA, 1987
Year joined staff: 1995

Mark Shankman, MD
Medical Director, Waltham Urgent Care Center

Medical School: Boston University School of Medicine, Boston, MA, 1980
Residency: Boston University Medical Center/University Hospital, Boston, MA, 1983
Year joined staff: 2003