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Residency Leadership

Robert Faust, MD
Program Director, 2010 to present
General Internal Medicine

Dr. Faust is a graduate of Albany Medical College. He completed his residency at University of Maryland Medical Center. While serving as a resident, he developed a particular interest in teaching and residency education. Upon completion of his residency, he was the recipient of the Outstanding Senior Resident Award as well as the Medicine Clerkship Award for excellence in teaching. He went on to serve as the Primary Care Chief Resident. In that post, he led weekly primary care morning reports, organized weekly primary care noon conferences, and actively mentored residents with a particular interest in primary care. In addition, he had a leadership role in the continuity clinic for the residents.

Following his completion of his Chief Resident year, he sought a position that would allow him to continue his course in Academic Internal Medicine and he joined Lahey Hospital and Medical Center (LHMC) in 2009. Since 2011, he has served as an Associate Program Director in the Internal Medicine Residency Program with a particular focus on the outpatient experience. Over the course of his time at LHMC, he has been repeatedly recognized by the residents for his outstanding teaching. He has been the recipient of the General Internal Medicine Teaching Attending of the Year award twice as well as the Overall Internal Medicine Teaching Attending of the Year award.

Sheri Keitz, MD
Chair, Department of Medicine
General Internal Medicine

Dr. Sheri Keitz is Chair of the Department of Medicine at Lahey Hospital and Medical Center responsible for 17 divisions as well as 12 residency and fellowship programs. The Department encompasses over 1,000 FTE and approximately 80 residents and fellows. Dr. Keitz has longstanding experience as a leader in the incorporation of evidence into daily clinical practice. She serves as an editor for JAMAevidence related to her work on JAMA’s series The Rational Clinical Examination, a compendium of over 100 peer reviewed meta-analyses summarizing the strength of evidence to support recommendations for common clinical diagnosis questions. She is an internationally recognized educator on evidence-based medicine. She co-leads Duke’s annual workshop, Teaching and Leading Evidence-Based Practice, a national workshop for educators and champions in evidence-based practice and co-Directs McMaster University’s Evidence-Based Clinical Practice Workshop. In addition to her expertise in implementing EBM, Dr. Keitz has been an advocate for equity and diversity in academic medicine throughout her career. She was the first Vice-Chair for Diversity in Duke’s Department of Medicine and founded Duke’s Program for Women in Internal Medicine and while at the University of Miami, she created the Office of Diversity, Inclusion, and Community Engagement. The diversity work was supported by an NSF ADVANCE grant for promotion of women in science, math and engineering as well as a HRSA Health Careers Opportunities Program (HCOP) Grant which supports a series of minority pipeline programs. Dr. Keitz did her internal medicine training and fellowship in clinical epidemiology at Duke, has a PhD in Pharmacology and has research experience in basic science, health services research, and education innovation. She is a celebrated educator: the inaugural winner of Duke University’s Master Clinician-Teacher Award in 2004 and the 2001 winner of the Eugene Stead Award for Excellence in Teaching. In 2006 she was elected to Duke’s Engel Society for dedication to medical education. In 2010 at the University of Miami, Dr. Keitz was awarded the “Montblanc” teaching award, which is given each year by the Housestaff program to the faculty member felt to be the best educator, and who consistently demonstrates excellence in medicine and medical education.

Michael Berarducci, MD
Associate Program Director
General Internal Medicine

Dr. Michael Berarducci has been an associate program director since 2008. He was one of the first chief residents at the start of Lahey Clinic’s internal medicine residency program.  After finishing medical school at the University of Rochester, he completed his internal medicine training at Mount Auburn Hospital and then joined the program at Lahey.  His cites involvement with teaching and mentoring residents as a very important and rewarding part of his career. He now leads quality improvement didactics and projects for our program. He is also involved with coordinating and teaching our ambulatory conferences during our Thursday morning educational sessions.

David Brabeck, MD
Associate Program Director

Hospital Medicine

Dr. David Brabeck completed medical school at the State University of New York-Downstate and is an alumni of the Lahey IM training program. He has been an Associate Program Director at Lahey since 2011.  He splits time between the Division of Hospital Medicine, working as a hospitalist as well as the Division on General Internal Medicine where he conducts clinics in the Preoperative Center.  Dr Brabeck has a particular interest in perioperative medicine, establishing and leading the Orthopedic/Hospital Medicine comangement service.  He is also the director of the medical simulation branch of Lahey’s Simulation Center.

2020-2021 Chief Residents

Shawnik Bhargava, MD
Royal College of Surgeons in Ireland

Ghaleb Halaseh, MD
Royal College of Surgeons in Ireland

Shawnik and Ghaleb are the Chief Residents for 2020-2021. Shawnik grew up in Alberta, Canada and completed his undergraduate degree in Biological Sciences at the University of Alberta. Ghaleb grew up in Amman, Jordan. Interestingly, they both pursued their studies in medicine at the Royal College of Surgeons in Ireland, graduating in 2017. As fate would have it, they both matched to the Internal Medicine program at Lahey Hospital and Medical Center. They were honored to be chosen as the rising Chiefs Residents in their PGY2 year.

In his spare time, Ghaleb enjoys spending time with friends, whether it’s checking out Boston’s many craft breweries, playing soccer and going to the beach. He is currently applying for a fellowship in Gastroenterology.

Shawnik likes to read, cook, and try out new restaurants when he is not working. He is currently applying for a fellowship in Cardiology.

Rising Chief Residents

Kwadwo Ofosu-Barko, MD
American University of the Caribbean School of Medicine

Natalie Dal’Bo, MD
University of Limerick

Kwadwo was born in Ghana but has lived in 11 countries throughout his lifetime. He had a 10-year career in secondary school education prior to starting his medical journey. He attended the American University of the Caribbean School of Medicine, graduating in 2018. When not in the hospital, Kwadwo can be found either in the kitchen making something tasty, on the basketball courts, in the gym (but not as much as Natalie) or hanging with friends and family.

“Natalie is one of the rising Chief Residents for the 2021-2022 academic year. She grew up in Toronto, Canada and completed her undergraduate degree in BioMedical Sciences at the University of Guelph. She then completed medical school at the University of Limerick in Ireland. In her spare time, Natalie likes to play soccer, lift weights, and enjoys doing outdoor activities. She also likes to cook but is nowhere near as good as Kwadwo. She is planning on applying for a fellowship in Cardiology next year.”