Primary Care Doctors


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.

Isabel Bueno

Isabel Bueno, M.D.

Serving West Palm Beach and Jupiter

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 affiliated faculty at University of Miami Miller School of Medicine. Dr. Bueno is bilingual in English and Spanish.

Avishai Mendelson

Avishai Mendelson M.D

Serving 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.

dr isis manhart

Isis Manhart, M.D.

Serving Jupiter

Dr. Isis Manhart is a Board Certified Medical Doctor who graduated from the Universidade Gama Filho, Rio de Janeiro, Brazil in 2007. Dr. Manhart completed her residency program in Internal Medicine at both Mercy Medical Center and Aultman Hospital in Canton, Ohio where she continued her career as a Hospitalist. Dr. Manhart is married with 2 young boys, speaks fluently in English and Portuguese and joined The Medical Group of South Florida as a Primary Care Physician.

Ronald Surowitz

Ronald Surowitz, D.O.

Serving Jupiter

VIP Concierge

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.

Suzanne Schwab

Suzanne Schwab, M.D.

Serving West Palm Beach

We are pleased to welcome our newest Medical Doctor, Suzanne Schwab. Dr. Schwab received her medical degree from State University of New York Upstate in Syracuse, New York in 1993 and completed residency at University of Carolina – Department of Family and Preventive Medicine. Dr. Schwab has been in practice for more than 25 years. She is currently accepting new patients.

Lindsay Black ARNP

Lindsay Black, ARNP

Lindsay Black 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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