CHCN Executive Team

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Andie Martinez Patterson, Chief Executive Officer

Andie Martinez Patterson joined Community Health Center Network as its CEO in July of 2022.

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Prior to serving at CHCN, Andie worked at the California Primary Care Association (CPCA) for nearly 15 years working to advance the mission of community health centers statewide. For the last decade she worked to build and advanced a payment reform initiative for health centers in California. Her last role at CPCA was as the Senior Vice President for Strategy, Integration and System Impact.

Andie’s background includes public policy, community organizing, advocacy, and membership engagement. She has an undergraduate degree from the University of Illinois at Chicago, and a master’s degree in Public Policy from the Humphrey Institute of Public Affairs (UMN).



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.


Dr. Tri Do, MD, MPH, FACP, Chief Medical Officer (he/anh, she/chị, chanh)

Dr. Tri Do is the Chief Medical Officer for CHCN. They joined CHCN in early 2020 as the Medical Director.

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Tri Do, MD, MPH, FACP came to the United States as a refugee from Viet-Nam and grew up in Hayward. He graduated from Boston University School of Medicine and completed an Internal Medicine residency at Santa Clara Valley Medical Center. After residency, he completed an HIV research fellowship at the University of California, San Francisco and graduated from the University of California, Berkeley with a master’s in public health with a focus in epidemiology/biostatistics.

He stayed on as a professor at UCSF through NIH-funded research studies, where he maintains a faculty appointment. His independent research at UCSF has focused on the social and systems-level correlates of HIV and other health disparities in LGBTQ+ populations and communities of color. The research seeks to advance the science of how social and structural factors affect: 1) accessibility of appropriate health services, 2) utilization of healthcare services, and 3) individuals’ health outcomes.

He has served as the global head of clinical science at Roche Diagnostics, overseeing the conceptualization, design, and execution of numerous clinical trials and FDA and global approvals for new molecular tests in infectious diseases, oncology, and precision medicine. His work in HIV public health culminated in an announcement at the United Nations of a multilateral agreement with the US government, the Global Fund, WHO, UNAIDS, the Clinton Health Access Initiative, and others to provide sustainably priced diagnostics to developing countries heavily impacted by the HIV epidemic.

Dr. Do is formerly the chief medical officer at the San Francisco Community Health Center and medical director of HealthRIGHT 360. In those roles, he led the growth of federally qualified health centers serving key populations including women, LGBTQ+ people, communities of color, immigrants, low-income persons, homeless individuals, people who use drugs, sex workers and formerly incarcerated individuals. He continues to provide care for people living with HIV. He has served on the board of numerous non-profit health organizations advancing health equity and access.