Dr. Mercedes C. Onagan is a Radiologist in Maybunga, Pasig and has an experience of 31 years in this field. Dr. Mercedes C. Onagan practices at Tricity Medical Center in Maybunga, Pasig. She completed Doctor of Medicine from University Of The East- Ramon Magsaysay Memorial Medical Center in 1988. She is a member of CT-MR Society of the Philippines,Polymerase Chain Reaction and San Jaun Medical Society. Service provided by the doctor is: Radiotherapy.