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Meet Dr. Mastis

Dr. Mastis is a dual board-certified psychiatrist in adult and child & adolescent psychiatry, with 10 years of private practice experience as the medical director of Pediatric Behavioral Health. She graduated from Tufts University School of Medicine and completed her residency and fellowship training at UMass Medical School. Additionally, she is an instructor of psychiatry at UMass Medical School and a member of the American Society of Ketamine Physicians and Clinical TMS Society. Her personalized, holistic approach to patient care is highly valued in the greater Worcester MA community where she has lived for 15 years.

Meet Dr. Guertin

Dr. Guertin is a psychologist with over 20 years of experience providing clinical expertise in psychological assessment and cognitive behavioral therapy for multiple psychological disorders. She has extensive experience helping patients with biologically based medical and psychological disorders that include anxiety, depression, chronic pain, obsessive/compulsive behavior, and eating/weight problems. She received her Ph.D. from Purdue University and completed post-doctoral training at Brown University and UMass Memorial Medical Center.