When you have a medical issue that is puzzling your physician, he or she may turn to one of the highly trained doctors of internal medicine at The Medical Group of South Florida in Jupiter, Florida, to consult in the diagnosis. Or, you may choose to engage one of our internists to serve as your primary doctor.

An internist is a medical doctor who is trained in primary care for adults. To specialize in internal medicine, a physician will spend at least three of the typical seven years of medical training focusing on all aspects of adult medicine, from prevention to diagnosis and treatment.

Care and Treatment

Your doctors of internal medicine at The Medical Group of South Florida here in Jupiter will address any chronic or acute conditions you may experience, offer advice on disease prevention and a healthy lifestyle, and partner with you to ensure your optimal health.

Because our internists possess such a wide range of knowledge about the various diseases and medical conditions that you may encounter through the course of your adult life, they will come to know you intimately. From your medical history to your daily life, they are able to form a long-term relationship with you that provides a picture of the whole person. Thus, they are able to employ their unique skills in treating you as an individual, not merely a medical chart.

Doctors of Internal Medicine in Jupiter, FL


Isabel Bueno

Isabel Bueno, M.D.

Serving West Palm Beach

Dr. Bueno is a Board Certified Medical Doctor who graduated from the University of Miami, School of Medicine in 2015. Dr. Bueno completed her residency program in Internal Medicine at JFK Hospital in Lantana, Florida.  She is a member of The Palm Beach Medical Society and American College of Physicians.  Dr. Bueno is bilingual in English and Spanish.

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Bruce M. Eisenberg, M.D.

Serving Jupiter

Dr. Eisenberg completed his Internal Medicine residency at Sinai Hospital of Detroit and in the intervening years has received appointments to Sinai/Sinai Grace Hospital of Detroit, Harper Hospital in Detroit, Palm Beach Gardens Medical Center in Florida, and Jupiter Medical Center. Dr. Eisenberg specializes in preventive medicine, working closely with his patients to ward off diseases before they start. Toward that end, he has received advanced training in yoga and exercise, which he views as two essential components of a healthy lifestyle and can pass this knowledge on to his patients. He also possesses a keen interest in the quality of the environment and its impact on health and is an active environmentalist.

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Michael J. Federman, M.D.

Serving Jupiter

Dr. Federman completed his residency at Sinai Hospital of Detroit, and his Internal Medicine residency at Detroit General Hospital, also in Detroit. Subsequently, he became an associate professor of internal medicine. He was Senior Executive at Detroit Medical Center and was honored for teaching student interns and residents. With his broad, in-depth experience in the field of internal medicine, Dr. Federman will be a superb addition to our staff of excellent physicians and specialists.

Avishai Mendelson

Avishai Mendelson M.D

Serving West Palm Beach and Jupiter

Dr. Avishai Mendelson is a Board Certified Medical Doctor who graduated from the University of Miami, School of Medicine in 1993. Dr. Avishai Mendelson completed his residency program in Internal Medicine at Jackson Memorial Hospital in Miami, Florida. Dr. Avishai Mendelson and is a Diplomat for the National Board of Medical Examiners as well as the American Board of Internal Medicine. Dr. Avishai Mendelson is bilingual in English and Hebrew.

Luis Ulloa

Luis Ulloa, M.D.

Serving Jupiter

Dr. Ulloa is a Board Certified Medical Doctor who graduated from the New York Medical College in 1977. Dr. Ulloa completed his residency program in Internal Medicine at Misericordia Hospital in New York. Dr. Ulloa is bilingual in Spanish and English.

Morgan Poncy

Morgan Poncy, M.D.

Serving Jupiter

MD 2.0 Website

Dr. Poncy is a Board Certified Medical Doctor who graduated from the University of Miami, School of Medicine, in Miami Florida in 1993. Dr. Poncy completed his residency program in Internal Medicine at Jackson Memorial Hospital in Miami, Florida. As well, Dr. Poncy earned his certificate from the American Society of Addition Medicine (ASAM) for Suboxone administration.

Amir Lubarsky

Amir Lubarsky, M.D.

Serving Jupiter

MD 2.0 Website

Dr. Lubarsky is a Board Certified Medical Doctor who graduated from the University of Miami in 1995. Dr. Lubarsky completed his residency program at Jackson Memorial Hospital in Miami, Florida. Dr. Lubarsky has affiliations with the American College of Physicians and the Southern Medical Association. Dr. Lubarsky is proficient in English, Hebrew and Spanish.

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