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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He 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.



Rayne Johnson, Chief Information Officer

Bio Coming Soon





Rhonda Marion, Chief Human Resources Officer

Rhonda Marion, the Chief Human Resources Officer for Community Health Center Network and the Alameda Health Consortium, joined both organizations in 2014.

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Rhonda has previous non-profit experience from her time with Catholic Charities of the East Bay where she held the position of Chief Operating Officer / Director of Human Resources. Her career has spanned both business leadership and human resources where she has helped organizations realize their potential through organizational design and development. As part of her own values and business strategies, Rhonda has found that helping organizations enrich their diversity is rewarding both personally and professionally.


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, Director of Finance

Latonya Thompson is the Director of Finance for the Alameda Health Consortium and the Community Health Center Network and has been with the companies since 2003.

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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.