1985, Bachelor of Medicine, Bachelor of Surgery, MBBS (India)
1995, Member of The Royal College of Physicians, MRCP (Ireland)
1995, Member of The Royal College of Physicians, MRCP (United Kingdom)
Master of Science, MSC (United Kingdom)
Diploma in Child Health, DCH (London)
Diploma in Child Paediatric (United Kingdom)
Allergy Diploma (United Kingdom)
Kapan jadwal praktek Dato' Dr S. Sellappan?Loh Guan Lye (dengan perjanjian).
Penting: Dokter tidak menemui pasien saat hari operasi atau sedang cuti.