Dr. Greenfield obtained his medical school training at the University of South Florida (USF) College of Medicine and Nova Southeastern University, College of Osteopathic Medicine and performed his residency at the University Community Hospital, Tampa. His areas of expertise include alcohol abuse, nutrition counseling, and hepatitis. Patients rated him highly, giving him an average of 4.0 stars out of 5. He accepts Blue Cross Blue Shield EPO, Blue Cross Blue Shield Bronze, and Blue Cross Blue Shield HMO, in addition to other insurance carriers. He speaks Spanish. Dr. Greenfield's hospital/clinic affiliations include Regional Medical Center Bayonet Point, Morton Plant North Bay Hospital, and Medical Center of Trinity.