Dr. Tash graduated from Mahidol University, Thailand in 1991. He then pursued his specialty and subspecialty training in the US and earned his American Board of Pediatrics, Allergy and Immunology and lastly, Pediatric Rheumatology at Cornell University prior to returning back to Thailand and established the first Pediatric Rheumatology department at Siriraj Hospital and Mahidol University in January 2001. He then moved back to the US and joined Children’s Hospital of Pittsburgh where he gained his research interest in scleroderma and established the first Pediatric Scleroderma clinical and research Program in 2006. Then, he developed the Localized Scleroderma Cutaneous Assessment Tool which is the well-accepted clinical assessment measures in Localized Scleroderma and has been well-accepted as the standard assessment worldwide. In 2009, he then moved back to Singapore to established its first Pediatric rheumatology clinical program and in 2011, the Asia-Pacific Pediatric Rheumatology Education and Research Network. Over the decades, he has published the epidemiologic and outcome data of children with rheumatic diseases in Singapore and Southeast Asia. He also actively involved in pediatric rheumatic diseases translational researches in trying to better understand the underlying immune-mechanisms and predict outcomes. He is currently an Associate Professor, head and senior consultant at the Rheumatology and Immunology Department at KK Women’s and Children’s Hospital and Duke-NUS Medical School.