Dr jay feldman, md
Dr. Jay Feldman is a board-certified emergency medicine physician and founder of 4th Street Medical, a Miami clinic focused on longevity, cellular optimization, and integrative medicine. With over 20 years in high-acuity emergency departments, he combines clinical expertise with root-cause, proactive care to help patients achieve peak performance.
He specializes in precision diagnostics, peptide therapeutics, and metabolic optimization, using advanced tools like full-body MRI, coronary CTA, AI-driven plaque analysis (Cleerly), and cancer screening panels to personalize care and extend healthspan.
Trained under Dr. William Seeds in peptide and cellular medicine, Dr. Feldman brings a regenerative and functional approach to performance and resilience. He serves as Assistant Professor of Emergency Medicine at Florida Atlantic, Florida International, and Nova Southeastern Universities, and advises Hatzalah South Florida. He earned his medical degree from Tel Aviv University and completed his residency at the University of Nevada.
Dr jessica cook, md
Dr. Jessica Cook, MD, FACEP, is a board-certified emergency medicine physician with advanced fellowship training in Integrative Medicine and Healthcare Simulation. Originally from East Coast Canada, she earned her Bachelor of Science at McGill University and her medical degree on full scholarship at Trinity College Dublin.
She completed her Emergency Medicine residency at Mount Sinai St. Luke’s-Roosevelt in New York City, followed by fellowships at Yale University’s Center for Medical Simulation and the Andrew Weil Center for Integrative Medicine.
Dr. Cook specializes in advanced diagnostics, biomarker interpretation, vitamin and mineral optimization, cellular regenerative therapies, and integrating complementary treatments with traditional medicine. She also leads healthcare innovation, designing simulation centers for HCA Healthcare hospitals in South Florida, and serves as Clinical Assistant Professor at Florida International and Nova Southeastern Universities.
Combining emergency and integrative medicine with a preventative, patient-centered approach, Dr. Cook is dedicated to optimizing health, enhancing longevity, and helping patients look and feel their best.