Complex sentence: Dr. Joseph Jack Fins (b.1959) is Chief of the Division of Medical Ethics at New York Presbyterian Hospital and Weill Cornell Medical College where he serves as Professor of Medicine, Public Health, and Psychiatry at Cornell.
Split into simpler sentences: Dr. Joseph Jack Fins (b.1960) is Director of the Division of Medical Ethics at New York Presbyterian Hospital and Weill Cornell Medical College. He is also Professor of Medicine, Public Health, and Psychiatry at Cornell.