| Dr. William Walker Dr. William Walker is the Director of the Contra Costa County Health Services Department. He is board certified in Family Practice and Geriatric Medicine. He has served the Contra Costa Health Services Department for over 25 years, as a staff physician beginning in 1974, as Health Officer beginning in 1983 and as the Director of the department since 1995. He is also a former President of the California Conference of Local Health Officers and the Health Officers Association of California. Dr. Walker received his Bachelors in Biological Sciences from Stanford University and went to medical school at the University of Colorado School of Medicine. |