Our Medical Team

Edouard Martin, M.D.

Dr. Edouard Martin graduated from Yale University in 1979, earning a Bachelor of Science. He also received his Doctor of Medicine from Yale University in 1983.

Dr. Martin completed his internship and residency program at Bellevue Hospital in New York in 1986. He remained as a Teaching Assistant in Medicine at New York University School of Medicine until 1987.
His nephrology fellowship was completed at the Brigham and Women’s Hospital and Harvard Medical School in 1991.

  • Dr. Martin moved to Ft Lauderdale to join South Florida Nephrology Associates in 1991
  • He later became a partner in practice with Dr. Diego Echeverri and co-owner of South Florida Nephrology Associates.
  • He is principal investigator and co-investigator in numerous research studies and key clinical trials since 2005 for South Florida Research Institute, a division of South Florida Nephrology Associates.
  • Dr. Martin is currently Medical Director for several Fresenius Dialysis clinics in the Ft Lauderdale area.
  • Dr. Martin is Board Certified by the American Board of Internal Medicine and Nephrology.
  • He also has licensure in California and Massachusetts.
  • Dr. Edouard Martin also speaks French and Creole.

Diego Echeverri, M.D.

Dr. Diego Echeverri earned his medical degree at Colegio Mayor de Nuestra Senora del Rosario in Bogota, Colombia. He completed his internship at San Juan de Dios Hospital in Armenia, Colombia, followed by his internal medicine residency and nephrology fellowship at University of Alberta Hospitals in Alberta, Canada.

Dr. Echeverri joined South Florida Nephrology Associates in 1992 and later became a partner in practice with Dr. Edouard Martin and co-owner of South Florida Nephrology Associates.

Dr. Echeverri is principal investigator and co-investigator in numerous research studies and key clinical trials since 2005 for South Florida Research Institute, a division of South Florida Nephrology Associates.

He is currently Medical Director for several Fresenius dialysis clinics in the Ft. Lauderdale area.

Dr. Echeverri is Board Certified by the American Board of Internal Medicine and nephrology. He is a Fellow of the American Society of Nephrology (FASN), member of the American College of Physicians and International Society of Nephrology and Fellow of the Royal College of Physicians and Surgeons of Canada (FRCPC).

Dr. Echeverri also speaks Spanish and French.

Beth Leventhal, M.D.

Dr. Beth Leventhal graduated from Princeton University in 1989, earning a Bachelor of Arts in History and a Certificate in Latin American Studies. She received her Doctor of Medicine in 1994 from Albert Einstein College of Medicine, after spending additional time studying Chile’s well regarded public health system on a travel grant.

Dr. Leventhal completed her internship and residency in 1997 at Yale-New Haven Hospital in the Categorical Internal Medicine Residency Program. She was an attending physician at Jacobi Medical Center in the Bronx for one year prior to training in the Nephrology Fellowship Program at the New York-Presbyterian Hospital/Weill Cornell Medical Center. She remained at NYPH as an assistant attending physician for one year, conducting clinical research within the Hypertension Center, which was supported by a grant from the American Heart Association.

Dr. Leventhal moved to South Florida in 2001, worked as a nephrologist at the Cleveland Clinic Florida in Weston and practiced as a nephrologist in Hollywood, Florida until mid 2019.

Dr. Leventhal is Board Certified by the American Board of Internal Medicine and Nephrology.

Dr. Leventhal also speaks Spanish.

SFNA Nurse Practitioners

Alberto Macena

MSN, APRN, BC

Alberto Macena

Alberto Macena is a Board Certified Advanced Practice Registered Nurse who has been employed at South Florida Nephrology Associates since 2018.

After earning a Bachelor of Science in Nursing at Miami Dade College, he attended Florida Atlantic University to complete his Master degrees in MSNed and MSN.

Alberto has worked in the medical field in both long term, post acute, and acute care.

Alberto also speaks Creole

Cardia Sinclair

MSN, APRN, BC

Cardia Sinclair

Cardia Powell Sinclair is a Board Certified Advanced Practice Registered Nurse (APRN) who has been employed at South Florida Nephrology Associates for over 21 years. Cardia received her RN degree from Broward College in 1993 and after working at Palmetto General for over 6 years went on to earn both her Bachelor of Science in Nursing and her Master of Science in Nursing degrees from Florida International University.Cardia completed her Masters in 1998 and graduated top of her class.

She has been practicing at South Florida Nephrology Associates since 1998, providing care to dialysis patients at several dialysis clinics across South Florida.