Dr. Justine Ong earned her Medical Degree—Bachelor of Medicine and Bachelor of Surgery (MBBS)—from MAHSA University. With over six years of extensive experience in clinical medicine, she has served in some of the nation’s leading hospitals. Her training spans general health, anaesthesia, and intensive care medicine, equipping her with a comprehensive skill set to manage a wide range of medical conditions. She is certified in Basic Life Support (BLS), Advanced Life Support (ALS), and the Neonatal Resuscitation Program (NRP), and she places strong emphasis on patient safety, comfort, and effective pain management—principles she continues to uphold at Dr Chong Clinic.

During the height of the COVID-19 pandemic, Dr. Justine was a dedicated frontliner. She served courageously at Malaysia Agro Exposition Park (MAEPS) in Serdang, managing large numbers of COVID-19 patients, and in the intensive care units of Hospital Serdang, providing critical care to those in need.

Driven by a deep interest in aesthetic medicine, Dr. Justine pursued further studies through the Malaysia Aesthetic Certificate (MAC) program. She specializes in anti-aging solutions, non-surgical rejuvenation, and preventive healthcare. Her expertise includes the treatment of pigmentation, acne, and scars. She is also well-versed in advanced laser procedures, skin lesion removal, chemical peels, botulinum toxin (Botox), and dermal fillers.

Dr. Justine’s passion for aesthetics is rooted in her genuine love for people. She finds fulfillment in making a meaningful difference in her patients' lives, believing that when individuals feel good about their appearance, it enhances their confidence and inner well-being. Her philosophy is simple yet powerful: inner beauty reflects outer beauty.

Known for her friendly, attentive, and welcoming nature, Dr. Justine is deeply appreciated by her patients, many of whom return regularly for ongoing care and aesthetic maintenance. She upholds the principles of the Hippocratic Oath, especially the commitment to "first, do no harm." Every treatment she offers is approached holistically and tailored to meet each patient’s unique needs with honesty and integrity.

Outside the clinic, Dr. Justine leads a vibrant and fulfilling life. She enjoys traveling with her family, is an avid music lover, and often finds joy in playing the piano and keyboard. She is also a certified scuba diver who delights in exploring the serenity and beauty of the underwater world—embracing the peace, freedom, and connection to nature it brings.