About Dr. Greenfield
Dr. Greenfield has been practicing for 28+ years, and he is currently Board-Certified in Internal Medicine.
When he lived in New York, he taught Internal Medicine residents at Long Island Jewish Medical Center, a teaching hospital, while also teaching medical students from Albert Einstein College of Medicine, where he held the academic rank of “Instructor in Medicine.” Later, Dr. Greenfield earned the academic rank of Clinical Assistant Professor of Medicine at Stony Brook University Hospital.
After working in various clinical settings in New York, Dr. Greenfield opened his own primary care / Internal Medicine practice on Long Island, which he ran for 11 years. Dr. Greenfield received ILADS training in New York with Dr. Bernard Raxlen (an LLMD & ILADS Co-Founder), where he spent roughly 2 years.