Kathleen Onia, RN, MD, DPDS
Dermatologist
Dr. Kathleen Sagun Onia is a licensed and board-certified dermatologist dedicated to providing evidence-based, patient-centered skin care. With a strong foundation in both nursing and medicine, she brings a comprehensive and compassionate approach to dermatology.
Meet the Doctor
Why Dermatology?
Skin conditions affect more than appearance — they affect confidence, comfort, and quality of life. Dr. Onia believes dermatology should combine science, skill, and empathy. Every treatment plan is designed not just to treat symptoms, but to support long-term skin health.
Board Certifications & Licensure
Dr. Onia has successfully completed the required national licensure and board certification examinations, reflecting her commitment to maintaining the highest standards in dermatologic care.

Nursing Licensure Examination (2009)
Board-certified dermatologist successfully completed specialized training and passed the diplomate examination of the Philippine Board of Dermatology.

Philippine Physician Licensure Examination (2016)
Officially licensed physician in the Philippines after passing the national medical licensure examination.

Diplomate Board Examination – Philippine Board of Dermatology (2022)
Licensed Registered Nurse, providing a strong clinical foundation in patient care prior to pursuing a medical degree.