Executive Leadership

Our Leadership

David B. Vliet, MBA, Chief Executive Officer

Mr. David B. Vliet, BHA, MBA, came to the East Bay Area by way Austin, TX, in 2012 with more than 19 years of experience in practice management and health services administration to join Tiburcio Vasquez Health Center as Chief Executive Officer.
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Dr. Sridevi Ponnala, Chief Dental Officer / Executive Vice President

Sridevi Ponnala is born and raised in India. She is an International dentist and graduated from UCSF school of Dentistry with Doctor of dental surgery in 2004. She passionate about advocating and providing quality dental care to those who need it the most. Dr. Ponnala joined TVHC in 2010 and over the past 7 years she has been playing an integral role in development and expansion of the dental program. Dr. Ponnala believes in mentoring and educating young clinicians in providing culturally sensitive care and minimally invasive dentistry. She has carried this love of teaching with her to TVHC and has worked to create partnerships with dental schools and Chabot hygiene program, so that the students can complete their rotations while performing much needed services and gaining cultural competency.
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Monica Salgado, Executive Assistant/Senior Director of Facilities

Monica Salgado has been with the Tiburcio Vasquez Health Center since the early 90’s. Described as this being her first real job, she started as a switchboard operator. Monica has grown with Tiburcio Vasquez and today has extensive experience in all aspects of the center’s administration, acting as the Senior Director of Facilities as well as the Executive Assistant. Monica is the key contact for the day to day operations of TVHC’s sites and programs. Monica was born and grew up in the East Bay and remembers her parents making use of the services offered by the Tiburcio Vasquez Health Center and is proud to play a role in ensuring those services remain available to others who need them.
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Andrea Schwab-Galindo, MPH, CHC, Chief Administrative Officer/Executive Vice-President

Andrea Schwab-Galindo is the Chief Administrative Officer (CAO) and Executive Vice President (EVP). Andrea joined TVHC in January 2013, and has grown from a Compliance and Quality Manager to a CAO/EVP. As CAO, Andrea oversees all administrative functions of the health center, including Human Resources, Corporate Communications and Marketing. Additionally, Andrea manages the design, implementation and evaluation of Compliance and Quality management systems.
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Dr. Porshia Mack, MD, Chief Medical Officer

Dr. Porshia Mack, MD joined TVHC as CMO in June 2017. Dr. Mack is a board certified pediatrician with a long history of working in Federal Qualified Health Centers. She is committed to the health of diverse low-income and underserved populations, and is an advocate for social equity.
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Caleb Sandford, MBA, Chief Operations Officer

Caleb Sandford joined the executive leadership team at Tiburcio Vasquez Health Center in September 2016. In his role as Chief Operations Officer (COO), Caleb is responsible for the operational success of the organization, and for improving access to health services for patients.
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Brent Copen, MPA, Chief Financial Officer and Executive Vice-President of Business Development

Brent Copen is the CFO & EVP of Business Development at Tiburcio Vasquez Health Center. He brings more than 20 years of executive and management experience to the position, including senior leadership roles at Asian Americans for Community Involvement, La Piana Consulting and Nonprofit Finance Fund.
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