Parian is an urban barangay in Calamba, Laguna, Philippines, located at the point of Manila South Rd.-Calamba National Highway. Calamba Doctors' Hospital, is a private hospital located at the northern portion of the city, situated at the Check Point-Bridge and National Highway intersection. It has a private school beside the hospital called "Calamba Doctors' …Parian is an urban barangay in Calamba, Laguna, Philippines, located at the point of Manila South Rd.-Calamba National Highway. Calamba Doctors' Hospital, is a private hospital located at the northern portion of the city, situated at the Check Point-Bridge and National Highway intersection. It has a private school beside the hospital called "Calamba Doctors' College".