Site Principal Investigators

Group Health Center for Health Studies, Group Health Cooperative

CRN Principal Investigator
Edward H. Wagner, M.D., M.P.H.
Senior Investigator, Group Health Center for Health Studies
Director, MacColl Institute
Research Interests: studies of interventions to reduce disability in seniors and to enhance the care of persons with chronic illness

Division of Research, Kaiser Permanente Northern California

CRN Co-Principal Investigator
Lawrence H. Kushi, ScD
Associate Director for Etiology and Prevention Research
Division of Research, Kaiser Permanente Northern California
Adjunct Professor of Nutrition, Teachers College, Columbia University, New York, NY
Research Interests: role of diet and nutrition in the etiology of coronary artery disease and breast and other cancers

Center for Health Research-Northwest, Kaiser Permanente Northwest

CRN Co-Principal Investigator
Mark C. Hornbrook, Ph.D.
Senior Investigator and Chief Scientist, Kaiser Permanente Northwest Center for Health Research
Research Interests: health care cost and utilization analysis, economic evaluation methods, patient classification methods, health status measurement, predictive modeling, and health-based payment systems

Meyers Primary Care Institute, Fallon Community Health Plan

Terry S. Field, D.Sc.
Associate Director, Meyers Primary Care Institute
Associate Professor of Medicine, University of Massachusetts Medical School
Research Interests: providing safe and effective healthcare for adults who are disabled, chronically ill, or elderly

Marshfield Clinic Research Foundation, Marshfield Clinic

Robert T. Greenlee, Ph.D., M.P.H.
Marshfield Epidemiologic Study Area Lead Scientist, Marshfield Clinic Research Foundation
Research Interests: cancer surveillance and control; sociodemographic disparities in prevention, early detection, and treatment; and clinical epidemiology of cardiovascular disease, particularly arrhythmias and conduction disorders

Geisinger Center for Health Research, Geisinger Health System

Robert D. Langer, M.D., M.P.H.
Director, Outcomes Research Institute, Geisinger Center for Health Research
Adjunct Professor of Epidemiology, University of Pittsburgh Graduate School of Public Health
Research Interests: preventing chronic diseases, with a focus on the effects of age, gender, and culture/ethnicity as they affect the development and course of these conditions

Lovelace Clinic Foundation, Lovelace Health System

Margaret J. Gunter, Ph.D.
President and Executive Director of the Lovelace Clinic Foundation
Research Interests: disease management, quality improvement, racial and ethnic disparities, guideline implementation, and the use of information technology to improve practice

Center for Health Research-Southeast, Kaiser Permanente Georgia

Douglas W. Roblin, Ph.D.
Senior Investigator, Kaiser Permanente Southeast Center for Health Research
Adjunct Assistant Professor of Health Policy and Management, Rollins School of Public Health at Emory University
Research Interests: organizational and financial characteristics of health care systems affecting patient outcomes, such as medical services use and cost, visit satisfaction, and quality of chronic disease care

Department of Ambulatory Care and Prevention, Harvard Pilgrim Health Care

Suzanne W. Fletcher, M.D., MSc
Professor Emerita of Ambulatory Care and Prevention
Harvard Medical School and Harvard Pilgrim Health Care

Department of Research, Henry Ford Hospital & Health System

Christine Cole Johnson, M.P.H., Ph.D.
Senior Staff Scientist
Associate Chair for Research, Department of Biostatistics and Research Epidemiology
Director, HFHS Josephine Ford Cancer Center's Epidemiology, Prevention, & Control Program
Director, HFHS Center for Allergy, Asthma, & Immunology Research
Research Interests: cancer prevention and the etiologies of allergy and asthma

Institute for Health Research, Kaiser Permanente Colorado

Debra P. Ritzwoller, Ph.D.
Investigator, Health Care Economist, Institute for Health Research, Kaiser Permanente Colorado
Research Interests: costs and cost effectiveness of behavioral interventions, the uninsured, disease management interventions, vaccine effectiveness, public health surveillance systems, physician compensation, comorbidities, cost estimation, and cost-effectiveness

Center for Health Research-Hawaii, Kaiser Permanente Hawaii

Andrew E. Williams, Ph.D.
Research Associate III, Kaiser Permanente Center for Health Research
Research Interests: end-of-life care, decision-making, and health services research

Department of Research and Evaluation, Kaiser Permanente Southern California

Virginia P. Quinn, Ph.D.
Research Scientist
Department of Research & Evaluation, Kaiser Permanente Southern California
Research Interests: lifestyle and health behavior change, prevention, screening and adherence, adolescents and depression, and quality of cancer-related care

HealthPartners Research Foundation, HealthPartners

Cheri J. Rolnick, Ph.D., M.P.H.
Associate Director of Research
HealthPartners Research Foundation, HealthPartners
Research Interests: women's health issues, cancer, evaluation and health behaviors.