At Chestnut Hill Hospital, the faculty have been carefully selected for their academic excellence, medical expertise and ability to enrich the professional experiences of our residents.
Faculty members have diverse interests and special strengths in areas such as pediatrics, geriatrics, obstetrics, gynecology, women's health issues, sports medicine, substance abuse and behavioral science. Our faculty members are all members of the Society of Teachers of Family Medicine. We have an active faculty development program to maintain the highest clinical teaching skills. The part-time faculty is equally dedicated to their academic responsibilities. Part-time faculty include specialists in obstetrics, gynecology, marital and family counseling and surgery.
Marc W. McKenna, M.D.
Marc McKenna, M.D. has been the director of the Family Practice Residency Program since January, 1994. A graduate of Georgetown School of Medicine, Dr. McKenna completed his family practice residency at Bowman Gray School of Medicine in North Carolina and the faculty development program in family medicine at Jefferson Medical College. He is a diplomate of the American Board of Family Practice and a fellow of the American Academy of Family Physicians. Previously, he was associate director of the Montgomery Hospital family practice residency program for 13 years. Dr. McKenna was appointed clinical associate professor of family practice and community medicine in the associated faculty of the University of Pennsylvania School of Medicine and is chief of the division of family practice in Chestnut Hill Hospital's department of medicine.
His areas of special medical interest include sports medicine--for which he holds a Certificate of Added Qualification from the American Board of Family Practice-- procedural skills and community outreach. Dr. McKenna is the primary care sports medicine physician for LaSalle University and a medical consultant for Arcadia University.
He can be reached at Marc_McKenna@chs.net.
Russell S. Breish, M.D.
Russell Breish, M.D. graduated in 1978 from Temple University and received his M.D. from Jefferson in 1982. After a residency in family practice at Chestnut Hill Hospital, Dr. Breish joined the faculty in 1985 and is actively involved in all areas of clinical teaching. He is a clinical assistant professor of family practice and community medicine in the associated faculty of the University of Pennsylvania School of Medicine. He holds the Certificate for Added Qualifications in Geriatrics. He is the medical director for Wissahickon Hospice. As an associate director of the Residency Program, Dr. Breish is responsible for providing leadership and support for residents and faculty in their research projects.
He can be reached at Russell_Breish@chs.net.
Valerie P. Pendley, M.D.
Valerie Pendley, M.D. is a 1974 graduate of Wright State University in Dayton, Ohio and received her medical degree from Ohio State University in 1977. After completing her residency at Grant Hospital in Columbus, she worked for a year in a rural practice. Dr. Pendley returned to Grant Hospital as a full-time assistant director until she moved to Philadelphia and joined Chestnut Hill Hospital's Family Practice Residency Program in 1985. Board certified in family practice, Dr. Pendley is a part-time assistant director of the Residency Program. She holds the Certificate for Added Qualifications in Geriatrics and has a special interest in women's health issues, college health and is campus physician at Arcadia University. She is also responsible for coordinating the Family Practice Center conference schedule.
Dr. Pendley can be reached at Valerie_Pendley@chs.net.
Anne Hunter, D.O.
Anne Hunter, D.O. graduated from the Philadelphia College of Osteopathic Medicine in 1994. She completed an osteopathic internship at Suburban General Hospital in Norristown, Pennsylvania and then transferred into the Chestnut Hill Hospital Family Practice Residency Program as a second-year resident in 1995. Dr. Hunter served as chief resident during her third year and was awarded an Excellence in Teaching certificate by the Society of Teachers of Family Medicine at the end of that year. She joined the faculty in 1997 as a full-time assistant director of the residency program. Dr. Hunter is board-certified in family practice and was appointed clinical assistant professor of family practice and community medicine in the associated faculty of the University of Pennsylvania School of Medicine. Dr. Hunter is actively involved in clinical teaching, providing guidance and support for our interns as well as upper level residents.
Dr. Hunter can be reached at Anne_Hunter@chs.net.
Wakengo Mahaniah, M.D.
Originally from Zaire, now the Democratic Republic of Congo, Wakengo Mahaniah, M.D., left a troubled country to complete his senior year of high school in the Midwest. Dr. Mahaniah graduated in 1996 from Haverford College. After two years as a high school science teacher, Dr. Mahaniah returned to school and received his M.D. from Temple University in 2003. Dr. Mahaniah joined the faculty in 2008, having completed his residency in family practice at Chestnut Hill Hospital.
Dr. Mahaniah can be reached at Wakengo_Mahaniah@chs.net.
Arati Karnik, M.D

Arati Karnik, MD joined the faculty at Chestnut Hill Family Practice in August 2010. She attended medical school at Temple University in Philadelphia and then went on to complete her training in the Bronx at Montefiore Medical Center’s Department of Family and Social Medicine. After her Family Medicine residency she stayed on at Montefiore to complete a Faculty Development Fellowship. Her educational interests include evidence-based medicine, clinical teaching, and enhancing ambulatory medicine curricula. Clinically she wants to continue caring for the underserved and addressing the health disparities that continue to exist.
Dr. Karnik can be reached at Arati_Karnik@chs.net.
Tim Klepper, M.D
Tim Klepper, MD joined the faculty at Chestnut Hill Family Practice in August of 2011. Originally from Sherwood Forest, Maryland, Tim completed his undergraduate degree at Loyola College in Maryland. He went on to earn a master's degree in Medical Sciences from MCP Hahnemann University in Pennsylvania. Tim graduated in 2007 with a Medical Degree from Drexel University College of Medicine. He recently completed his residency with Chestnut Hill Family Practice where he served as Chief Resident. In addition to family medicine, Tim holds a variety of medical interests including sports medicine, child and adolescent health and clinical teaching for residents and students.
Dr. Klepper can be reached at Timothy_Klepper@chs.net.
Amanda Zavodnick, MSW, LCSW
Amanda Zavodnick received her Masters degree in Social Work from the University of Pennsylvania and is a Licensed Clinical Social Worker. Amanda joined our faculty from the Chestnut Hill Hospital Cancer Center where she provided counseling and resource referrals to Oncology patients and their families. Amanda coordinates our behavioral science curriculum and helps our residents integrate behavioral science and family systems theory into the practice of family medicine. In addition, Amanda supervises residents and faculty in Balint discussions, facilitates support groups for residents and conducts co-therapy sessions with patients using family physicians as the co-therapist.
Amanda can be reached at Amanda_Zavodnick@chs.net
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