According to Dr. Steinfeld, “I enjoy building long-term relationships with my patients and helping them through all life stages. What is Dr Martin’s delivery plan? Martin A Steinfeld MD. 19582 Beach Blvd Ste 307, Huntington Beach, CA, 92648. Newport Huntington Medical Group. 19582 Beach Blvd Ste 307, Huntington Beach, CA, 92648..