Site Principal Investigators
Group Health Research Institute, Group Health Cooperative
CRN Principal Investigator
Edward H. Wagner, M.D., M.P.H.
Senior Investigator, Group Health Research Institute
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
Azadeh Stark, Ph.D., MSc
Senior Staff Scientist, Henry Hood Center for Health Research, Geisinger Health System
Adjunct Associate Professor, Center for Clinical Epidemiology and Biostatistics, School of Medicine, University of Pennsylvania
Adjunct Associate Professor, Department of Internal Medicine, Wayne State School of Medicine
Research Interests: cancer control and early detection; prevention of obesity
Lovelace Clinic Foundation, Lovelace Health System
Herbert (Bert) T. Davis, Ph.D.
Senior Research Scientist, Lovelace Clinic Foundation Research
Research Interests: comparative effectiveness for cancer therapies; ethnic disparities in cancer treatment, alcohol abuse, and diabetes
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
Thom Flottemesch, Ph.D.
Investigator, HealthPartners Research Foundation
Research Interests: health services; health disparities; economics and risk adjustment; biostatistics
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