Our Team

Meet the scientists, physicians, and other experts that bring the ACT Center's work to life.

Our Team

Meet the scientists, physicians, and other experts that bring the ACT Center's work to life

In addition to the core team that leads the ACT Center's strategic direction and daily operations, our partners and valued team members include dozens of colleagues from across Kaiser Permanente Washington Health Research Institute (KPWHRI).

Our core team


Claire Allen, MPH

Senior Implementation & Evaluation Associate

Claire has experience in implementation science in research settings and in quality improvement in health care. Her work with the ACT Center aims to rapidly implement research evidence into clinical practice. She manages a team who design and implement projects in a variety of topic areas for the ACT Center.


Kathleen Barnes, MD, MPH

Physician Consultant

A graduate of Harvard Medical School and Harvard School of Public Health, Dr. Barnes has longitudinal experience consulting on the design and implementation of optimal primary care delivery practices in diverse health systems. Within the ACT center, she consults on the Integrated Pain Management and Universal Social Needs Screening projects.

View Kathleen’s physician profile  on KP Washington’s website. 


Katie Coleman, MSPH

ACT Center Director

Previously the director of the MacColl Center for Health Care Innovation, Katie has nearly two decades of experience transforming care across diverse settings, including community health centers nationwide. She leads the ACT Center’s social health portfolio and is co-director of Kaiser Permanente’s Social Needs Network for Evaluation and Translation (SONNET).

View Katie’s faculty bio  on the research institute’s website. 


Robert Frazier


Leading from the side for over 20 years, Robert has coordinated community benefit connections for Seattle-area leaders in hospitality, landscape conservation, and health care research.  At the ACT Center, he leverages his lived experiences to provide unparalleled support and creative solutions in a variety of spaces, including social media.


Paula Lozano, MD, MPH

ACT Center Director

KP Washington Medical Director for Research & Translation

Drawing on her decades as a pediatrician, researcher, and educator, Paula builds bridges between researchers and clinical care teams at Kaiser Permanente Washington. She leads the ACT Center’s pain and opioids portfolio, trains and mentors learning health system scientists through the CATALyST K12 program, and fosters partnerships across enterprise silos.

View Paula’s faculty bio  on the research institute’s website. 


Jess Mogk, MPH

Implementation and Evaluation Associate

Since 2015, Jess has been collaborating on multiple applied research projects at KPWHRI aimed at improving patient safety, reducing staff burnout, and addressing patient social needs. She contributes to the ACT Center as a practice coach, implementation scientist, qualitative researcher, and quality improvement professional.


Jessica Ridpath

Communications Manager

Jessica has worked in health research communications for more than 15 years, specializing in plain language editing and tailoring messages for different audiences, including health care leaders, care teams, and patients. She leads the ACT Center’s external communications and the development of practical, user-friendly resources that help guide care transformation.


Kelsey Stefanik-Guizlo, MPH

Implementation and Evaluation Associate

Kelsey previously worked in nonprofit program management and has deep experience in patient engagement and program design and implementation. In the ACT Center, she partners with health care teams and patients to implement new programs, advance equity, and improve patient and staff experience.


Emily Westbrook, MHA

ACT Center Director

KP Washington Health Research Institute Director of Research Operations & Programs

Emily has been working in health care research for over 20 years. She has extensive experience leading complex operations across a diverse range of projects and programs. She leads the ACT Center’s advanced analytics portfolio.

Featured project leads


Yates Coley, PhD

Assistant Investigator

Yates Coley is a biostatistician whose research focuses on developing and deploying prediction models that are accurate, actionable, and ethical. Yates leads predictive analytics work and directs biostatistical support for ACT projects. 

View Yates’s faculty bio  on the research institute’s website.


Clarissa Hsu, PhD

Associate Investigator

A medical anthropologist, Clarissa has been doing been doing qualitative research in health services settings for over 20 years. Areas of interest that align with the ACT Center include patient-centered care, patient and stakeholder engagement, addressing social needs in clinical settings, and interventions to improve care for chronic conditions.

View Clarissa's faculty bio  on the research institute’s website.


Gwen Lapham, PhD, MPH, MSW

Assistant Investigator

Gwen brings 15 years of experience in addictions health services research, with an emphasis on evidence-based substance use care in primary care.  She is an AHRQ/PCORI K12 Learning Health System scholar leading an ACT-funded project to design and pilot integrated mental health care for teens in KPWA primary care. 

View Gwen’s faculty bio  on the research institute’s website. 


Cara C. Lewis, PhD

Associate Investigator

Dr. Lewis is co-founding editor-in-chief of Implementation Research and Practice, and co-director of two NIH-funded centers aiming to optimize implementation of evidence-based practices. She brings implementation science expertise to ACT Center’s work, particularly in the social health space where she co-directs Kaiser Permanente’s Social Needs Network for Evaluation and Translation (SONNET). 

View Cara’s faculty bio  on the research institute’s website. 


Michael Parchman, MD, MPH

Senior Investigator

Michael has more than 30 years of experience as a primary care clinician, educator, and health services researcher with a focus on improving care for people with one or more chronic illnesses in primary care settings. He is principal investigator on several projects in ACT Center’s portfolio, past and present. 

View Michael’s faculty bio  on the research institute’s website.

ACT Center team members and partners at KPWHRI

Featured news

KP Washington family doc joins our learning health system team to help identify and spread best practices