Dr. LaMastra received his undergraduate degree from John Hopkins University in 1956. He then earned his medical degree from the University of Maryland School of Medicine in 1960. He completed his internship at Hartford Hospital, followed by his obstetrics and gynecology residency training at the University of Maryland School of Medicine in 1966.

Certified by the American Board of Obstetrics and Gynecology, Dr. LaMastra joined OB/GYN of Fairfield County in 1990.