Primary Care


When you have a medical concern, you want immediate access to caring, committed primary care physicians who know you, who know your family, and who know how to help. Your board-certified primary care doctors of The Medical Group of South Florida, serving Jupiter and West Palm Beach, are dedicated to the highest standards in patient care. Several of our physicians are bilingual or trilingual in English, Spanish, and Hebrew, so we can ensure clear, effective communication with all of our patients. If you happen to need a specialist, we can refer you to any of our many physicians who specialize in a variety of medical disciplines. Our Jupiter location can accommodate same-day diagnostic and lab tests run in-house.

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Isabel Bueno, M.D.

Serving West Palm Beach

Dr. Bueno is a Board Certified Medical Doctor who graduated from the Universidad Central de Venezuela. Dr. Bueno completed her residency program at University of Miami Palm Beach Regional Campus.  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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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.

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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.

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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.

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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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Ronald Surowitz, D.O.

Serving Jupiter

Dr. Surowitz graduated with his Doctor of Osteopathic degree from the College of Osteopathic Medicine and Surgery in Des Moines, Iowa in 1971. Dr. Surowitz is a Diplomat National Board of Osteopathic Medical Examiners, a member of the American and Florida Osteopathic Medical Association as well as American Academy of Anti-Aging Medicine and Association of Clinical Research Professionals.

Lindsay Black ARNP

Lindsay Black, ARNP

Serving Jupiter

We are pleased to welcome our newest ARNP, Lindsay Black. Lindsay is a family focused Nurse Practitioner with experience in internal medicine and women’s health. Her expertise is focused on diagnosis and treatment of acute and chronic illness, health maintenance, counseling and patient education. Lindsay is originally from Tennessee, where she earned her degrees in Nursing and Family Nurse Practitioner.

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