Psychologists and Psychiatrists in Billerica, MA Name: Greater Lynn Mental Health and Retardation Associa Address: 16 River Street City: Billerica State: Massachusetts Zipcode: 1821 Local Number: (978)667-8631 Name: Greater Lynn Mental Health and Retardation Associa Address: 16 River Street City: Billerica State: Massachusetts Zipcode: 1821 Local Number: (978)667-9216