Dr. Johan graduated from Universitas Sriwijaya, medical school in 1998, and after his internship (housemanship) in 2000, he worked in a rural area for one year and was posted in the Army General Hospital as a medical officer thereafter, before getting his specialist training in the National University of Singapore. He completed his Master of Medicine and Master of Surgery in 2009, and continued his general surgical training in Singapore and passed his MRCP(UK) exam and MRCS exam. He obtained his fellowship in orthopedics and trauma (FRCS) in Glasgow in 2012. Besides his busy clinic schedule, he immersed himself in the research work that has been published in multiple journals. He has been granted multiple patents by Intellectual Property of Singapore (IPOS) for his enormous works in cellular and biologic therapy and he is still pursuing his passion in both clinical practice and research to this day. Dr. Johan is also holding the fellow and diploma of minimal access surgery, fellow of endoscopy, fellow of International College of Robotic Surgeon, fellow of Indian Association of Orthopedic Surgeon (knee and hip arthroplasty) and life member of AO Spine, World Association of Laparoscopy Surgeon.