Tim Tyner, MS

Executive Director, Central California Asthma Collaborative

Tim co-founded CCAC in 2011 and served as the Board Chairman from 2011-2016 and 2021-present. Tim formally joined the CCAC staff in 2018 as Co-Director and assumed the role of Executive Director in 2024. Tim has overseen the growth of CCAC from a small team of six staff in 2018 to over 50 staff in five offices, serving disadvantaged communities from Bakersfield to Sacramento. In addition to the asthma services CCAC provides to Medi-Cal and HMO patients, the organization receives millions of dollars annually in state and private grants to study and address social and environmental determinants of health.  

While responsible for CCAC’s portfolio of environmental, public health and research programs, Tim’s focus is currently on the organization’s public health and research initiatives. He oversees a Community Health division that provides CalAIM services to thousands of Medi-Cal patients across Central California through Asthma Remediation Community Support and Enhance Care Management (ECM). Tim has also established CCAC as a regional leader in the implementation of environmental health research. While at CCAC, he has served as principal or co-investigator on more than a dozen state- and federally-funded studies in collaboration with researchers at UC Merced, UC Berkeley, UC San Francisco, UCLA, Lawrence Berkeley National Lab and other institutions, directly overseeing research staff in the Fresno and Bakersfield offices.  

Prior to joining CCAC, Tim spent 16 years overseeing and conducting research at UCSF Fresno. During his time at UCSF, Tim collaborated with investigators from UC Berkeley, Stanford, UC Davis and UCSF to study the impacts of air pollution on children’s health in Fresno. Tim received a Bachelor’s degree in Biology from CSU Fresno and a Master’s degree in Molecular Biology from UC Santa Barbara.