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Claudia Williams


Claudia brings over 20 years’ experience catalyzing and scaling improvements in healthcare to her role as the chief executive officer of Manifest MedEx. Previously the senior advisor for health technology and innovation at the White House, Claudia helped lead President Obama’s Precision Medicine Initiative. She has collaborated with private and public partners that are leveraging health information technology, new payment models, and open data to remake the digital landscape in healthcare. 

Before joining the White House, Claudia was director of health information exchange at HHS, and was director of health policy and public affairs at the Markle Foundation. She holds a master’s in Health Policy and Management from the Harvard School of Public Health and a bachelor’s from Duke University. She served as a Peace Corps volunteer in Botswana.


Erica Galvez

Chief Operating Officer

Erica is a recognized expert on health information exchange and interoperability. She most recently led the HIE work for Aledade, with ACOs spanning 15 states and accounting for more than $1.5B in annual health care spend. She led efforts that tripled the company’s hospital connectivity, and evolved the use of health information to reduce avoidable hospitalizations and emergency department encounters.

Prior to Aledade, she led the Office of the National Coordinator for Health IT’s (ONC’s) Interoperability Portfolio. She also served as one of the directors of ONC’s State HIE Program and as program manager for AHIMA’s State-Level HIE Consensus Project. Erica came to the HIE space through years of healthcare quality and patient safety research at The Joint Commission. She holds a master’s from the University of Colorado, Boulder, and a Six Sigma yellow belt from the University of Wisconsin, Madison.

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Paul Biberkraut

Chief Financial Officer

Paul comes to Manifest MedEx from a long career of leading healthcare financial operations. He previously served as CFO for Pacific Partners Management Services, Inc. ("PPMSI"), a MSO for IPAs primarily based in the Silicon Valley, for Inter Valley Health Plan, a not-for-profit Medicare Advantage health plan, and for CHCN, a Medi-Cal risk bearing network of eight Federally Qualified Health Centers. Paul brings a diverse set of skills in finance, accounting, business analysis, healthcare compliance, operations and risk management from his 30+ year career as a senior financial leader in publicly traded, private and non -profit organizations in the USA, Canada and the United Kingdom.

Paul is a graduate of McGill University of Montreal, Canada with a bachelor’s degree in commerce and a graduate degree in public accounting; is a member of the Chartered Professional Accountants of Canada and has an Executive MBA awarded from Pepperdine University.


Adam Harrison

Chief Growth Officer

Adam Harrison is the Chief Growth Officer for Manifest MedEx with responsibility for leading the expansion of provider and health plan participants in California’s nonprofit health data network and ensuring MX solutions deliver maximum value to support each organization.

Adam has more than 18 years of experience leading high performing sales teams. Prior to joining MX, he served as Senior Vice President of sales for a digital member engagement company. In that role he built and led a sales team that more than doubled the number of patient members on the platform, increased revenue by over 40 percent in two years, and expanded sales into new markets, including Medicaid, federal employees, and healthcare exchanges.

He previously directed enterprise sales efforts for athenahealth where he pioneered a new bi-directional data exchange business. He also led a national payer sales team at Optum that achieved double digit growth several years in a row and supported Verisk Health in signing deals with Fortune 500 employers.

He holds a bachelor’s degree in information technology and is a certified Six Sigma Blackbelt.


David Kates

Chief Technology Officer

David leads the technology, security and scalability programs for the Manifest MedEx network. Before MX, David has served in senior leadership roles at Wellpass, Inc (CTO), The Advisory Board Company, NaviNet, WebMD, Hx Technologies, and Cerner Corporation where he has led health information technology strategy, development, product management, and implementation activities.

David is an active contributor to government and industry HIT activities. He serves on the ONC Standards FACA Implementation Workgroup and previously served as co-chair for CCHIT and past board member of HL7 and represented The Advisory Board Company on the FHIR/Argonaut project. David received his bachelor’s and master’s degrees in electrical engineering and computer science from the Massachusetts Institute of Technology and his MBA from Duke University Fuqua School of Business.

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Jason Buckner

Chief Information Officer

Jason has been at the forefront of the nonprofit Health Information Exchange (HIE) industry for over a decade. His previous roles include leadership positions at NC HealthConnex and The Health Collaborative, where he utilized his broad technical experience in interoperability, informatics and analytics to help improve healthcare.

Jason has served on multiple national committees including the eHealth Exchange Coordinating Committee. He received his Bachelor's degree in Business Administration from Queens College in Charlotte, NC. Jason currently lives in Alameda, CA where he is an avid cyclist.

Elizabeth Killingsworth

Elizabeth Killingsworth

General Counsel and Chief Privacy Officer

Elizabeth has provided counsel and guidance to organizations within the healthcare sector for over a decade, with a particular focus on the intersection of healthcare and technology. She has deep experience in network building, health information exchange and connectivity, and navigating the relationship between commercial enterprises and a complex regulatory overlay.

Elizabeth’s previous roles include leadership positions at Surescripts and Evidera. She received her law degree from the University of Virginia School of Law, earning a Dillard Fellowship, and her BA from Vanderbilt University.

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Mimi Hall

Vice President, Public Health Innovation

Mimi is an executive leader in public health, healthcare administration, and government who has dedicated her professional career to improving population health. She has deep expertise in public health, extensive relationships with key county, state, and association partners, and an understanding of public programs, systems, and funding.

Mimi has served as a local public health director in California since 2005 in Sierra, Plumas, Yolo, and Santa Cruz counties. She's also held leadership roles in the California Health Executives Association of California, and served on the board of Santa Cruz, Health Information Exchange. She earned her Master's in Public Health from the University of Hawaii, Manoa, HI.


Sarita Choy

Vice President, Marketing and Communications

Sarita is a marketing and communications executive with more than 14 years of experience leading marketing, communications, and business development in the healthcare sector. She has deep expertise in successfully developing and executing integrated marketing communications strategies to drive market visibility, generate leads, and support business strategic objectives.

Sarita has held marketing and communications leadership roles at leading healthcare organizations, including GE Healthcare Partners and COPE Health Solutions. She earned her Bachelor of Arts degree at University of Michigan, Ann Arbor, MI.

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Bob Jako

Director of People

Bob has worked for many years within the healthcare sector in California, including as an executive in The Permanente Medical Group based in Oakland, California. He has both designed and implemented a wide variety of performance feedback programs and culture change programs in an innovative, technology-forward healthcare setting.

Bob has previously served on the faculties of the University of California, Berkeley and the University Nebraska at Omaha. He earned his graduate degrees in industrial/organizational psychology at Colorado State University and completed his undergraduate studies in political science and economics at the University of California, Berkeley.