Consultant, RS Jantung Harapan Kita, Jakarta (1986-1995)
Consultant, RS Persahabatan, Jakarta (1986-1987)
Consultant, RS Siloam-Gleneagles, Tangerang (1990-1995)
Consultant, RS Pusat Pertamina, Jakarta (1992-1995)
Consultant, RSPAD Gatot Soebroto, Jakarta (1992-1995)
Consultant, RS Rajawali, Bandung (1995-2000)
Consultant, RS St Borromeus, Bandung (1995-2007)
Head Division, RS Hasan Sadikin, Bandung (1995-2007)
Associate Professor, Universitas Padjadjaran, Bandung (1995-2007)
Professor, Universiti Teknologi MARA, Malaysia (2007-2012)
Director, RS Medika BSD, Tangerang (2013-2017)
Director, RS Medika Permata Hijau, Jakarta (2017-2019)
Commissioner Indonesian Healthcare Corporation (2019-2020)
Consultant, RS Pusat Pertamina, Jakarta (2020-now)
University at Buffalo (Bachelor of Arts in Biology 1971)
University of Hawaii (Doctor of Medicine 1976)
Mercy Catholic Medical Center Philadelphia (General Surgery 1976-1981)
Boston University Medical Center (Adult Cardiothoracic Surgery 1982-1983)
Harvard University Boston Children's Hospital (Pediatric Cardiac Surgery 1984)
Baylor College of Medicine Methodist Hospital, Houston, Texas (1985)
Hospital for Sick Children, UK (1985)
Novi Sad Hospital, Yugoslavia (1987)
Fellow American College of Surgeons (1987)
Fellow American College of Cardiology (1988)