Meet Our Gastroenterologists
Dr. Mark Tanker was born and raised in Atlantic City and Cherry Hill, New Jersey. He completed his undergraduate education at George Washington University in Washington, D.C. and earned his medical degree at Philadelphia College of Osteopathic Medicine. After completing a residency in Internal Medicine at Mercy Catholic Medical Center, where he served as Chief Resident, he moved to Cleveland, Ohio to continue his training as a Fellow in Gastroenterology at the Cleveland Clinic Educational Foundation and Cleveland Clinic Hospital. At the conclusion of his Fellowship in 1982, he returned to Philadelphia to begin his Gastroenterology practice.
Dr. Tanker is an attending physician at Albert Einstein Medical Centers in Philadelphia and Elkins Park, Moss Rehabilitation Hospital, Jeanes Hospital and Kindred Hospital of Philadelphia. He is Board-certified in both Internal Medicine and Gastroenterology. Dr. Tanker is a Clinical Assistant Professor of Medicine at Drexel University College of Medicine. He has a special interest in inflammatory bowel disease and liver diseases, but treats all diseases of the gastrointestinal system.
Dr. Tanker serves as the Co-Medical Director of Einstein at Elkins Park and is a member of the Board of Overseers of the Albert Einstein Healthcare Network. In addition, he is the former President of the Medical Staff and Chairman of the Board of Governors of Elkins Park Hospital. He is a member of numerous professional societies including the American Gastroenterology Association, American Society of Gastrointestinal Endoscopy, American College of Physicians and the Crohn’s and Colitis Foundation.
Dr. Tanker is married and has two children. He enjoys cooking, skiing, water sports and traveling.
Dr. Richard Moses is a native of Philadelphia. He attended Central High School then Penn State University, graduating with a B.S. in Psychology. Dr. Moses subsequently attended medical school at the College of Osteopathic Medicine and Surgery in Des Moines, IA. After completing an internship and residency in Internal Medicine at Metropolitan Hospital in Philadelphia, PA, Dr. Moses went on to complete a fellowship in Gastroenterology at Hahnemann University Hospital in Philadelphia, PA.
Dr. Moses is an attending physician at Jeanes Hospital, Albert Einstein Medical Centers in Philadelphia and Elkins Park, and Kindred Hospital of Philadelphia. He is very active in the Temple University Health System and Jeanes Hospital communities, serving on many committees and striving for the delivery of quality healthcare and patient safety.
In 1997, Dr. Moses received his J.D. degree from Temple University School of Law. He has special interests in Healthcare Law, Compliance, and Risk Management. He serves as an Adjunct Professor of Law at the Beasley School of Law of Temple University where he teaches a Health Law course every Spring Semester. Dr. Moses is also an Adjunct Clinical Associate Professor of Medicine at the Temple University School of Medicine. He speaks nationally and consults, in addition to authoring articles and reference book chapters, on medical, legal, risk management, and compliance topics.
Dr. Moses lives in the Philadelphia area with his family. He enjoys writing, reading, running, traveling, music, gardening, and spending time with his family, friends, and colleagues.
Dr Bruce Gelman was born and raised in Brooklyn, New York. He attended college at Columbia University in New York City and then medical school at the Johns Hopkins University School of Medicine in Baltimore, MD. In addition to completing his internship and residency at Johns Hopkins, Dr Gelman completed a fellowship in gastroenterology at Temple University Hospital in Philadelphia, PA in 1985.
Dr Gelman is an attending physician at Einstein Medical Center, Einstein at Elkins Park, Jeanes Hospital, and Kindred Hospital of Philadelphia. He has special interests in inflammatory bowel disease, liver disease, and clinical nutrition, but treats all gastrointestinal diseases.
Dr Gelman lives in the Philadelphia area but makes frequent trips back to his beloved Brooklyn with his wife. He also enjoys model railroading, riding his bike and rooting for the Brooklyn Nets.
A native of northern New Jersey, Dr. Sher graduated from Haverford College, where he majored in molecular biology. He attended medical school at Case Western Reserve School of Medicine in Cleveland, OH. After completing his internship and residency in Internal Medicine and International Health at Metro Health Medical Center in Cleveland, he returned to Philadelphia for his fellowship in Gastroenterology and Hepatology at Temple University Hospital.
Dr. Sher is an Assistant Clinical Professor of Medicine at Jefferson Medical College of Thomas Jefferson University. He is affiliated with Albert Einstein Medical Centers at Philadelphia and Elkins Park, Jeanes Hospital, and Kindred Hospital of Philadelphia. He has been on the Medical Staff Board of Einstein Medical Center for many years. He also serves on the Ethics Committee and has been the treasurer at Kindred Hospital, Philadelphia. Dr Sher is an active member of several professional societies including The American College of Physicians, The American Gastroenterological Association, The American College of Gastroenterology and The American College of Gastrointestinal Endoscopy.
Dr. Sher’s medical training has taken him to both Southeast Asia and East Africa. He specializes in advanced endoscopic therapy and currently teaches in the Gastroenterology Fellowship Program at Einstein Medical Center.
He lives in Philadelphia with his family and enjoys travel as well as outdoor activities such as biking, running, and hiking.
Dr. Shiban Raina was born in Srinigar Kashmir, India and attended medical school at the Government Medical College in Kashmir, India. After receiving his medical degree, Dr Raina worked in India for 10 years. In 1978, Dr Raina emigrated to the United Kingdom to train in medicine and allied specialties including Gastroenterology. He passed the MRCP exam in 1986 and was elected as fellow of Royal College of Physicians (FRCP) in 1994.
Upon moving to the United States in 1993, Dr Raina was a resident at the Cleveland Clinic Foundation in Cleveland, OH. He then completed a fellowship in Gastroenterology at the Guthrie Clinic/Robert Packer Hospital in Sayre, PA.
Dr Raina is an attending physician at the Einstein Medical Centers of Philadelphia and Elkins Park, Jeanes Hospital, and Kindred Hospital of Philadelphia. He has special interests in inflammatory bowel disease, GERD, and biliary disease.
Dr Raina lives in the Philadelphia area and enjoys traveling, gardening, and spending time with his family.
Dr. Brotz received his medical degree from Upstate Medical University in Syracuse, NY and completed his internship and residency at the Montefiore Medical Center in Bronx, NY. His gastroenterology fellowship training was at Jefferson University Hospital in Philadelphia, PA.
Dr. Brotz is affiliated with Einstein Medical Centers of Philadelphia and Elkins Park, Jeanes Hospital, and Kindred Hospital of Philadelphia. He is a member of the American Gastroenterology Association, the American College of Gastroenterology, the American Society for Gastrointestinal Endoscopy, and the American Medical Association. He is also a member of several committees at Jeanes Hospital focused on the delivery of quality healthcare.
Dr. Brotz has special interests in colorectal cancer screening, gastrointestinal reflux disease, and irritable bowel syndrome but treats all GI issues.
Dr. Brotz lives in the Philadelphia area with his family.