CHCN Executive Team

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Ralph Silber, Chief Executive Officer

For more than 30 years, Ralph Silber has served as the Executive Director of the Alameda Health Consortium, the association of eight non-profit community health centers in Alameda County, California.

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Ralph has a Masters degree from UC Berkeley in Public Health, with a concentration in health policy and planning and has more than thirty years experience in community health, primary care and health policy. He is also the Chief Executive Officer of the Community Health Center Network, a managed care and practice management organization with 140,000 managed care members.

Mr. Silber is a founding member of the Board of Directors of the California Primary Care Association and a member of the National Association of Community Health Center’s Health Center Controlled Network Task Force. He has served on numerous government advisory committees at the federal, state, and county levels and has delivered presentations at numerous national conferences. He has held research and teaching positions at both UC Berkeley and Stanford and has authored articles in the American Journal of Public Health and Medical Care.

View a video of Ralph discussing the future of health care in California here.


Steve Blake, Chief Operating Officer

Steve Blake joined Community Health Center Network as the Chief Operating Officer in 2019.

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Steve brings more than 30 years of experience in the healthcare field as a clinician, executive and thought leader and is passionate about helping to reduce the amount of suffering in the world by developing and providing high quality, patient focused clinical services

His background includes experience in mental health and substance abuse treatment facilities and programs, public sector mental health programs, managed healthcare and EAP organizations and several health technology startups.

Steve holds an undergraduate degree from Santa Clara University, a master’s degree in Social Welfare from UC Berkeley and a master’s degree in Healthcare Administration from The University of Southern California.

Additionally, he is a Licensed Clinical Social Worker and a Certified Professional in Healthcare Quality.



Michael Ibarra de Perea, Chief Human Resources Officer

Michael Ibarra de Perea joined Alameda Health Consortium and Community Health Network as the Human Resources Director in 2019 and became the Chief Human Resources Officer in 2020.

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Michael is a Human Resources/Management Professional and former Naval Officer with over 10 years of experience leading people and empowering teams. He received a BS in Anthropology from Tulane University, an MBA from New Mexico Highlands University, and holds senior level HR certifications from the Human Resource Certification Institute and the Society for Human Resources Management. Michael has prior experience as the Human Resources Director for an FQHC in his home state of New Mexico and is excited to continue to work in the community health center sphere.

Rayne Johnson, Chief Information Officer

Bio Coming Soon




Dr. Laura Miller, Chief Medical Officer

Dr. Laura Miller is the Chief Medical Officer for CHCN. She joined CHCN in early 2015 as Associate Medical Director.

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She has a long history of service in our community, having been a provider at LifeLong Medical Care since 1999. She was the Associate Medical Director LifeLong East Oakland Clinic from 2006 to 2014. During her tenure at LifeLong, she led the Over Sixties Hospital service and worked on many improvement initiatives. Dr. Miller received her undergraduate degree from Wesleyan University, her medical degree from Harvard Medical School and completed her Internal Medicine residency at the University of California, San Francisco.

Dr. Miller is fluent in Spanish, has two children, and loves anything related to fibers arts – knitting, sewing, spinning and weaving.


Latonya Thompson, Chief Financial Officer 

Latonya Thompson is the Chief Financial Officer for the Alameda Health Consortium and the Community Health Center Network and has been with the companies since 2003. Prior to becoming CFO, Latonya was the Director of Finance.

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Latonya received her BBA with a focus in accounting from Howard University and, after spending the beginning of her professional career in the world of private accounting, she found working to improve accessibility for the low-income and uninsured populations in Alameda County to be more fulfilling and aligned with her own world views. Besides running the accounting departments for two organizations, as well as CHCN’s eligibility department, she also serves as Treasurer of her homeowner’s association board.