About
Marc S. D. grew up in the Philadelphia suburbs and built his entire career around the conviction that medicine should be proactive, not reactive. He graduated Cum Laude from LaSalle University and earned his Doctor of Medicine degree from Temple University School of Medicine in 1986, gaining election to Alpha Omega Alpha. He then joined Temple University School of Medicine as an Assistant Professor of Medicine before entering private practice in 1991.
After more than 25 years seeing 25 to 30 patients a day in traditional practice, Dr. Rabinowitz founded Prevention First Healthcare in Southampton to give patients the time and attention he believed they deserved. Consumers' Research Council of America named him one of America's Top Physicians in both 2008 and 2010. He has served on the Medical Executive Committee and Board of Directors for Holy Redeemer Hospital and on the Board of Directors of the Patients and Physicians Alliance. He maintains hospital privileges at Abington-Jefferson Health, Doylestown Hospital, and Holy Redeemer Hospital. National media including CNN, MSNBC, NBC10, and publications such as Reader's Digest and Men's Health have sought his expertise on preventive health topics. His clinical passions include cardiovascular health, weight management, nutrition, sleep disorders, dementia prevention, and the latest advances in weight loss medications. Patients throughout Bucks County know him simply as Dr. Marc. He counts his two children, Chloe and Dustin, as his proudest achievement.
Education & Training
Undergraduate
LaSalle University, Cum Laude
Medical School
Temple University School of Medicine, Doctor of Medicine, Alpha Omega Alpha, 1986
Additional Training
Assistant Professor of Medicine, Temple University School of Medicine
Conditions Treated
Who is Dr. Rabinowitz right for?
Dr. Rabinowitz works well with adults of any age who want a proactive, relationship-driven approach to their health. Seniors and busy executives make up a core part of his patient base. He is a strong fit for patients managing cardiovascular risk, weight, sleep disorders, or chronic disease. Anyone who values direct physician access and thorough annual assessments will find his model a natural match.
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Frequently Asked Questions
Dr. Rabinowitz specializes in internal medicine and preventive medicine. His clinical focus includes cardiovascular health, weight management, nutrition, sleep disorders, and dementia prevention. He also manages chronic disease and coordinates care with specialists at leading institutions along the East Coast.
Dr. Rabinowitz holds his Doctor of Medicine from Temple University School of Medicine, where he earned election to Alpha Omega Alpha. He has practiced internal and preventive medicine since entering private practice in 1991, building more than three decades of clinical experience.
Dr. Rabinowitz sees patients from age 18 to 102. He has a particular focus on seniors and busy executives, though he welcomes any adult who wants a proactive partner in managing their health.
Dr. Rabinowitz conducts a 90-minute comprehensive annual physical for every patient. He covers physical fitness, nutrition, sleep, family history, and mental health in a single thorough visit. This extended format allows him to build a complete picture of each patient's health.
Yes. Dr. Rabinowitz gives every patient his personal cell phone number for after-hours emergencies. This direct access is a core part of how he practices medicine at Prevention First Healthcare.
Yes. Dr. Rabinowitz coordinates specialist appointments before patients leave his office. He maintains relationships with major medical centers including Memorial Sloan Kettering, Fox Chase Cancer Center, and Penn, helping patients reach the right specialist quickly.
Consumers' Research Council of America named Dr. Rabinowitz one of America's Top Physicians in both 2008 and 2010. National media outlets including CNN, MSNBC, NBC10, Reader's Digest, and Men's Health have sought his expertise on preventive health topics.
Dr. Rabinowitz holds hospital privileges at Abington-Jefferson Health, Doylestown Hospital, and Holy Redeemer Hospital. He has also served on the Medical Executive Committee and Board of Directors for Holy Redeemer Hospital.
Dr. Rabinowitz spent more than 25 years seeing 25 to 30 patients a day in traditional private practice. He also served as an Assistant Professor of Medicine at Temple University School of Medicine early in his career. He founded Prevention First Healthcare in Southampton to practice medicine on his own terms, with more time for each patient.
Doctor profile last updated March 21, 2026