CHOIR Faculty

Hector P. Rodriguez, PhD, MPH


Hector Rodriguez, PhD, MPH is the Henry J. Kaiser Endowed Chair in Organized Health Systems, Professor of Health Policy and Management, and Chair of the faculty group in Health Policy at the University of California, Berkeley.

Dr. Rodriguez earned his undergraduate degree from the University of California-San Diego, his MPH in Health Policy and Administration from UC-Berkeley, and his Ph.D. in Health Policy/ Medical Sociology from Harvard University.

His expertise is in organizational analysis and performance measurement, particularly as it relates to ambulatory care and health care disparities.  His current delivery systems research focuses on organizational interventions aimed at improving ambulatory care quality, including strategies to enhance primary care team effectiveness.  He has published extensively on the measurement of patient care experiences and the impact of delivery system interventions on patients’ experiences of care, including the impact of performance-based financial incentives for physician groups and physician communication training interventions.  Measuring the impact of primary care teamwork on the quality of chronic illness care has been an important focus across his research projects in community clinics and health centers, the Veteran Health Administration, and private physician organizations.

Prior to his academic career, Dr. Rodriguez served as a management consultant to The Permanente Medical Group where he worked with leaders and clinicians to implement major primary care practice redesigns and evaluate their impact on patient care.  He is the 2011 recipient of the AUPHA John D. Thompson Prize for Young Investigators.

Amanda L. Brewster, Ph.D., M.Sc.

Associate Director

Amanda L. Brewster, Ph.D., M.Sc., is an Assistant Professor of Health Policy and Management at the University of California, Berkeley. She is an expert in health care management, with a research agenda focused on innovation to address patients’ social needs in the context of healthcare. Her past work has documented the importance of collaboration among the diverse healthcare and social service organizations that support people with complex needs. Dr. Brewster is currently leading studies on: causes and consequences of partnerships between Community Based Organizations and health care organizations, implementing social needs case management in health care settings, and aligning regional systems for health care, public health, and social services.

Dr. Brewster's research has centered around the integration of health care and social services to address both medical and social determinants of health. Her contributions to science have provided insights to the field in the areas of hospital readmissions, making and embedding change within health care organizations, and older adult care. One example is her dissertation research which investigated quality improvement and organizational learning in the context of hospital efforts to reduce readmissions, and required collaboration among hospitals, outpatient health care providers, and social service providers in the community. Since then, her research has focused on understanding how cross-sector partnerships and innovative collaboration models influence potentially avoidable health care use and spending for older adults. She applies a range of methods to understand these issues including qualitative and mixed-methods, organizational network analysis, and longitudinal analyses leveraging large survey-based and claims-based data sets.

Timothy Brown, PhD


Timothy Brown is the BCHT Associate Director for Research and an Adjunct Associate Professor of Health Economics at the University of California, Berkeley. He received his doctorate in Health Services and Policy Analysis, with a specialization in health economics, from the University of California at Berkeley.

At Berkeley, Dr. Brown teaches analytic methods for health policy and management focusing on econometrics, experimental and quasi-experimental design, and surveys. He has published in scientific and policy journals such as Health Services Research, Health Economics, JAMA Internal Medicine (formerly known as the Archives of Internal Medicine), Social Science & Medicine, and the Journal of the American Dental Association.

Dr. Brown's current research at BCHT focuses on reference pricing and hospital efficiency with regard to the use of medical devices. Dr. Brown manages the research staff and day-to-day research work at BCHT.

Mark Fleming

Mark Fleming, MS, PhD


Professor Fleming specializes in critical approaches to social and structural determinants of health, housing and homelessness, mental health and substance use crisis response, and health care services and technology. His training is in anthropology and sociology and his work uses ethnographic, community-based participatory, and mixed methods.

Jenny Guadamuz

Jenny Gaudamuz, MS, PhD


Jenny S. Guadamuz is an Assistant Professor at the UC Berkeley School of Public Health, Division of Health Policy and Management. She is a member of the Latinx and DemocracyFaculty Cluster.
Dr. Guadamuz is a health services researcher and pharmacoepidemiologist who uses an interdisciplinary approach to identify how structural determinants impact healthcare access, especially medications among minoritized racial/ethnic populations. Her current research focuses on health inequities across immigration status. Immigration status is a critical yet overlooked factor influencing disparities because noncitizens endure significant barriers to legal and social protections, including systemic exclusions from healthcare.
She also conducts research in the fields of drug utilization among historically excluded populations (e.g., racial/ethnic inequities in clinical trial participation), federal policies to mitigate drug risks, and the role of pharmacy accessibility in determining access to medications using electronic health records, administrative claims, surveys, and geospatial data.

Jeffrey Oxendine, MBA, MPH


Jeffrey Oxendine, MBA, MPH has been a health executive, educator and consultant for over 35 years. Jeff is currently a California leader in health workforce and diversity, the CEO of Health Career Connection, a health care consultant and Director of Health Workforce and Diversity at the UC Berkeley Center for Healthcare Innovation and Organizational Research (CHOIR).

Jeff’s most recent project was Co- Director of the California Future Health Workforce Commission. He co led design, planning and support of the Commission’s work to develop an actionable statewide health workforce strategy for California. He is now engaged as a consultant in efforts to advance Commission recommendations (https://futurehealthworkforce.org/).

Jeff served as Associate Dean of Public Health Practice at UC Berkeley for 12 years and a faculty member for 16 years where he founded and directed the Center for Public Health Leadership and Practice. He also served as Co-Faculty Director of the Undergraduate Public Health Major.

Prior to his roles at Berkeley, Jeff was a senior executive for 20 years in leading Bay Area and Boston hospitals and medical groups. He also taught for 5 years at Harvard School of Public Health.

Jeff’s passions are strengthening health workforce and diversity and empowering students to become health leaders and professionals which he does as a consultant through OXS Consulting and as Founder and CEO of Health Career Connection (HCC), a national non-profit that empowers undergraduate students throughout California, New York, New England, North Carolina, Nashville and Washington DC (www.healthcareers.org).

Jeff is also Co-Director of the California Health Professions Consortium, a statewide coalition of over 150 organizations working to strengthen diversity and the health professions pipeline. He is a leader of the East Bay Health Workforce Partnership; an employer led regional initiative to strengthen health workforce, diversity and economic opportunity in Alameda and Contra Costa Counties.

Stephen M. Shortell, PhD, MPH, MBA 

Investigator and Founding Director

Stephen M. Shortell, PhD, MPH, MBA is the Blue Cross of California Distinguished Professor of Health Policy and Management and Professor of Organization Behavior at the School of Public Health and Haas School of Business at University of California-Berkeley. He is also Dean Emeritus of the School of Public Health at Berkeley, and holds appointments in the Department of Sociology at UC-Berkeley and the Philip R. Lee Institute for Health Policy Research, UC-San Francisco.

Dr. Shortell received his undergraduate degree from University of Notre Dame, his Master’s degree in Public Health from UCLA, and his MBA and Ph.D. in Behavioral Sciences from the University of Chicago. During 2006-07 he was a Fellow at the Center for Advanced Study in Behavioral Sciences at Stanford University.

A leading health care scholar, Dr. Shortell and colleagues have received numerous awards for their research examining the performance of integrated delivery systems; the organizational factors associated with quality and outcomes of care; the development of effective hospital-physician relationships and the factors associated with the adoption of evidence-based processes for treating patients with chronic illness. He was one of the architects of the Accountable Care Organization (ACO) concept and is currently conducting research on their implementation and performance as well as on patient activation and engagement. He is an elected member of the Institute of Medicine of the National Academy of Sciences; past President of Academy Health and past editor of Health Services Research. He serves as Chair of the Berkeley Forum – a private-public multi-stakeholder group of California health leaders who have developed an agenda and performance targets for payment reform and integrated delivery of care for the state. He serves on many advisory boards and committees interested in improving the performance of health care systems.

Becky Staiger

Rebecca Staiger, PhD


Becky Staiger is an Assistant Professor of Health Policy and Management at the School of Public Health, University of California, Berkeley. In her research, she combines approaches from health economics, health policy, and health services research to better understand how marginalized patients access and experience healthcare, particularly through their relationships with providers. In much of her work, she uses large national Medicaid administrative claims databases (MAX, TAF, and others) to understand the impact of policies on healthcare utilization and outcomes among this population.