Cassandra Ohlsen Cassandra Ohlsen, M.D., is a diplomate certified in Internal Medicine. She received her medical degree from Keck School of Medicine of USC, and has been in practice for over twenty years. She has also practiced in Africa and India: In 1984, she workd with Mother Teresa at her Home for Dying Destitutes and her Children's Home in Calcutta. Dr. Ohlsen also cared for the medically underserved at a Los Angeles clinic, helping to rebuild community health after the Watts riots; in Fresno, California, where she attended to migrant farm workers; and at the Monterey County Health Department, where she took care of indigent adults and children. Read More Read Less