Faculty & Staff

John McConnellJohn McConnell, Ph.D.

Director, Center for Health Systems Effectiveness

Dr. McConnell is a health economist whose research has focused on state health policy, behavioral health, and quality improvement. His current work includes a study of the uptake and effectiveness of Lean and related management practices in more than 600 hospitals, and an economic evaluation of Oregon’s transformation to Coordinated Care Organizations.


Christina CharlesworthChristina Charlesworth, M.P.H.

Research Associate |

Christina came to CHSE in 2015 from the epidemiology track at Oregon State University. Her prior research focused primarily on prescription medication use among older adults, including examination of characteristics associated with polypharmacy, national trends in prescription drug use, and the impact of functional status on outcomes among older adults receiving antihypertensive therapy.

Rebecca Craven, B.A.

Research Coordinator |

Rebecca provides research and organizational support to the entire center. She has a background in medical anthropology and energy economics and broad experience in operations, including human resources, bookkeeping and administration. Her previous work involved using qualitative methods to evaluate the efficacy of utility efficiency programs.

Konrad DobbertinKonrad Dobbertin, M.P.H.

Research Associate |

Konrad works on projects in quality improvement and cost reduction as part of CHSE's internal health care analytics team. He hails from OHSU's epidemiology and biostatistics program. Prior to joining CHSE, Konrad worked at the Oregon Office on Disability and Health, investigating disparities in health care access and utilization within the disability community.

Rani George

Rani George, M.P.H.

Project Manager |

Rani supports multiple CHSE projects and is currently focusing on a project evaluating the impact of Oregon's Medicaid reform model on reducing racial and ethnic disparities. Previously, she worked at the Oregon Public Health Division on a statewide evaluation of cancer genetic testing and follow-up procedures. She has contributed to education, planning and analysis activities with public health programs at county and state health departments, community health centers and international health settings.

Lorie Geryk

Lorie Geryk, Ph.D.

Senior Project Manager |

Lorie joined CHSE to manage the Washington State All-Payer Claims Database, a state-agency project that supports transparency of health care information for our neighbors to the north. Lorie did her graduate work in Public Health at the University of South Carolina, where her research centered on the epidemiology of attention-deficit hyperactive disorder in youth. Prior to working with CHSE, Lorie completed a postdoctoral fellowship at the University of North Carolina's Eshelman School of Pharmacy, where her work focused on chronic disease self-management and health communication.


Jenny Grunditz, M.Sc.Jenny Grunditz

Research Associate |

Prior to joining CHSE in October 2015, Ms. Grunditz worked for two economic consulting firms, where her health care-related work included analysis of hospital mergers and an assessment of the economic consequences of medical liability reform. Ms. Grunditz has experience performing quantitative analysis of data from a broad range of sources and drawing on multiple disciplines, including economics, finance, management, and sociology, to solve complex problems. Her current work at CHSE focuses on health care performance improvement and Medicaid financing. She holds a MSc in Economics from University College London.


Yifan GuYifan Gu, M.S.

Statistical Analyst |

Yifan received her master's degree in statistics from the University of Minnesota. Her current projects include evaluating the effectiveness of Oregon's coordinated care organizations at various aspects of health systems transformation. Before coming to CHSE, she explored working as a statistician in high-tech, insurance, and consulting organizations. Yifan has additional educational background in public policy and is interested in leveraging machine-learning tools to drive policy making high-quality medical care available to everybody.

Hyunjee KimHyunjee Kim, Ph.D.

Health Economist |

Hyunjee's research focuses on health care providers' behavioral responses to payment incentives in the context of the US health care systems. Her recent work explores how home health agencies responded to the Medicare prospective payment system in the 2000s. She is also interested in the health care market, health care cost and quality, long-term care, and aging.
Curriculum vitae


Jonah KushnerJonah Kushner, M.P.P.

Research Program/Policy Manager |

Jonah contributes to evaluations of Oregon’s health system transformation efforts, including evaluations of coordinated care organizations and efforts to spread Oregon’s coordinated care model. In prior positions, he has planned and executed evaluations of diverse health and human services programs and made health care data meaningful and accessible to a variety of audiences through public-facing reports.


Bonnie LindBonnie Lind, Ph.D.

Assistant Professor
Senior Statistician

Bonnie is a biostatistician who has worked on a wide variety of projects from cardiovascular epidemiology research to analyzing utilization of complementary and alternative medicine under insurance coverage. Her current interests include using data to drive healthcare system change and end-of-life care.
Curriculum vitae

Stephan LindnerStephan Lindner, Ph.D.

Research Assistant Professor |

Stephan is a health and labor economist who evaluates the effectiveness of health policy programs and policies.  His current work includes an assessment of AHRQ's EvidenceNOW, a multisite effort to improve primary-care treatment of cardiovascular risk factors and an economic evaluation of Washington's Medicaid Transformation Project.
Curriculum vitae


Nicoleta Lupulescu-MannNicoleta Lupulescu-Mann, M.S.

Research Associate |

After completing her masters degree in statistics at Portland State University, Nicoleta spent several years in clinical reporting for a neighboring health care system.  She joined CHSE in 2014 and currently supports several of our OHSU collaborators with large dataset analyses.

Thomas MeathThomas Meath, M.P.H.

Research Associate |

Thomas provides data analysis for the Center to Improve Veteran Involvement in Care (CIVIC) at the Portland VA Medical Center as well as for several CHSE projects.  He came to CHSE in 2014 from the biostatistics track at Oregon State University, where his research included identifying risk factors for child and maternal health, assessing spatial environmental exposures, and evaluating hospital quality metrics.

Stephanie Renfro, M.S.Stephanie Renfro

Associate Director |

Stephanie is a statistician with a background in measuring and reporting health care quality. Her current work includes evaluating the effectiveness of Oregon's Coordinated Care Organizations in improving the quality of care while simultaneously reducing the growth rate of Medicaid spending. Prior to joining CHSE, Stephanie spent four years at the Oregon Health Care Quality Corporation, where her work included the calculation of quality ratings for health plans offered through Oregon's insurance exchange, Cover Oregon.


EllenaEllena Rosenthal, B.S. 

Research Assistant II |

Ellena joined CHSE in March 2018 to work on the Washington All-Payer Claims Database as well as research on state Medicaid reform and health care disparities. Ellena graduated from the Urban Honors College at Portland State University with a degree in Psychology and Gender studies, focusing on trauma-informed care, Developmental Trauma Disorder, and related therapeutic practices. Before coming to OHSU, Ellena was a communications strategist for a local nonprofit. She continues to work as a freelance journalist, photographer, podcast writer and producer.


Ruth Rowland, M.A.ruth

Director of Operations |

Ruth promotes links between CHSE's ongoing projects and with our internal and external partners and coordinates center planning and administration.  Before coming to CHSE, she spent seven years as administrator for OHSU's Methamphetamine Abuse Research Center. Her background is in communications and she has worked on a number of clinical and social-behavioral research studies.

Kyle Tracy, B.S.Kyle Tracy

Statistical Analyst

Kyle received his BS in physics from the University of Washington. After a stint in the UW lab looking for dark matter, he ended up working as an analyst in finance. There he worked on projecting financial outcomes and building models for targeted marketing. After that, he hopped over to a large insurance carrier where his work focused on building and maintaining databases and mining medical records for use in forecasting life and disability risk. Kyle is interested in investigating inefficiencies in health care provision, how to improve care for vulnerable populations, and the use of machine learning techniques in health care.


Kim Yee, M.P.H.

Research Analyst |

Kim joined CHSE in July 2016 and will be working on projects related to Medicaid coverage and identifying and reducing health disparities. Prior to this, Kim was a health economics and outcomes analyst at a private consulting firm, and worked for the Oregon Health Authority's All-Payer All-Claims project.