Dato' Dr. Lee is currently Deputy Medical Director, Chair of the Surgical Committee at Beacon Hospital, Petaling Jaya, Selangor, Malaysia. He is President of the Asia Pacific Osteoporosis and Fragility Fracture Society (APOFFS), a section of Asia Pacific Orthopaedic Association (APOA). 

Dato' Dr. Lee is also President of the Fragility Fracture Network Malaysia (FFNM) and the Lead for FFNM Fracture Liaison Service (FLS) Framework. He is President of the Malaysian Bone Health Optimization Network (MyBONe) and Past President of International Society for Clinical Densitometry (ISCD) with 2018 ISCD Dr. Paul D. Miller Service Award. 

Dato' Dr. Lee serves as the Lead of the ISCD Orthopedic Osteoporosis and Densitometry Course, Chair of the Asia Pacific Regional Advisory Council (RAC) of the International Osteoporosis Foundation (IOF) with the 2020 IOF President’s Award.  He is Co-Chair of the Asia Pacific Fragility Fracture Alliance (APFFA) and Co-Editor of the APFFA Hip Fracture Registry Toolkit. 

Additionally, he is a Board member for Fragility Fracture Network (FFN), Founding and Past President of the Osteoporosis Awareness Society of Kuala Lumpur and Selangor (OASKLS) and also the Past President of Malaysian Osteoporosis Society (MOS). He is a member of the steering committee for the Asia Pacific Bone Academy (APBA) and South East Asia, India and Hong Kong (SEAIHK) Bone Academy.