
Dr. Rainnier Ong Pulmonary Medicine Specialist Dr. Rainnier Ong is a physician specializing in Pulmonary Medicine with expertise in the diagnosis and management of respiratory diseases, including asthma, COPD, pneumonia, tuberculosis, sleep-related breathing disorders, and other lung conditions. He provides comprehensive pulmonary consultations, pre-employment and pre-operative pulmonary clearances, interpretation of pulmonary function tests, and preventive respiratory care. Dr. Ong is committed to delivering evidence-based, patient-centered care aimed at improving respiratory health and quality of life.
