William G. Sommer, MD, a respected psychiatrist and psychoanalyst known for his long-standing private practice and academic contributions, died peacefully at his home on August 29, 2026, at the age of 89. Over his five-decade career in New York City, Dr. Sommer established a reputation for his dedication to patient care, with a particular focus on treating individuals struggling with procrastination.

In addition to his private practice, Dr. Sommer served as the senior psychiatrist at the Counseling and Psychological Services of Columbia University Health Service for 38 years. His work at Columbia also included counseling credits awarded by the university’s Center for Psychoanalytic Training and Research, reflecting his active role in psychoanalytic education and training.

Dr. Sommer’s commitment to community and cultural initiatives extended beyond his professional medical career. He was a co-founder of the August Wilson Center for African American Culture, an institution dedicated to promoting African American arts and culture. Over the years, Dr. Sommer received multiple honors recognizing his contributions to the community, including an award as a Distinguished Daughter of Pennsylvania.

He is survived by his family, including his daughters Linda and Clare, their spouses Gregory and Ken, and grandchildren Courtney, Zoe, Kendall, and Tanner, as well as Courtney’s husband, Tom. Details regarding memorial services and remembrances have been shared privately among family and close friends.