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Jonathan B. Brown, MPP, PhD
Gregory N. Clarke, PhD
Robert L. Davis, MD, MPH
Lynn L. DeBar, PhD
Mary L. Durham, PhD
David Feeny, PhD
Adrianne C. Feldstein, MD, MS
Jeffrey Fellows, PhD
Andrew G. Glass, MD
Katrina Goddard, PhD
Carla A. Green, PhD, MPH
Christina Gullion, PhD
Brian Hazlehurst, PhD
Teresa A. Hillier, MD, MS
Jack F. Hollis, PhD
Mark C. Hornbrook, PhD
Eric Johnson, PhD, MPH
Njeri Karanja, PhD
Frances L. Lynch, PhD
Mary Ann McBurnie, PhD
Richard T. Meenan, PhD
Allison Naleway, PhD
Gregory A. Nichols, PhD
Rachel Novotny, PhD
Michael R. Polen, PhD
Douglas Roblin, PhD
David H. Smith, RPh, PhD
Victor J. Stevens, PhD
Thomas M. Vogt, MD, MPH
William M. Vollmer, PhD
Suma Vupputuri, PhD, MPH
Sheila Weinmann, PhD, MPH
Evelyn P. Whitlock MD, MPH

Investigator Emeritus
Donald K. Freeborn, PhD
Merwyn R. Greenlick, PhD
John P. Mullooly, PhD
Clyde R. Pope, PhD
Barbara G. Valanis, DrPH


Photo of Donald Freeborn
Donald K. Freeborn, PhD, Senior Investigator Emeritus
Dr. Freeborn served as associate director of CHR from 1970 to 1983 and as a senior investigator from 1970 to 1999. He has conducted studies on medical care utilization and costs, physician satisfaction, variation in practice patterns, effects of guidelines, and the performance of non-physician providers such as Physician Assistants and Nurse Practitioners. His current research focuses on outcomes of substance abuse treatment and how substance abuse treatment affects medical care use and costs.

Dr. Freeborn received his doctoral degree in medical care organization from the University of Michigan. He also holds a master's degree in hospital administration from the Medical College of Virginia. Before attending the University of Michigan, he was the assistant director of the University of Virginia Hospital and chief of the Bureau of Medical Care in the Department of Public Health, Richmond, Virginia. After completing his Ph.D., he worked as the associate director of the Ohio Valley Regional Medical Program and was a faculty member in the department of behavioral science at the University of Kentucky's School of Medicine.

Dr. Freeborn is an adjunct professor of sociology at Portland State University and adjunct professor in the department of public health and preventive medicine at Oregon Health Sciences University. He has served as a consultant for the Veterans Administration and its HSR&D Field Program and has served on various scientific committees for the Alcohol, Drug Abuse, and Mental Health Administration, the National Institute of Alcohol Abuse and Alcoholism, the NIMH, and the Institute of Medicine. He is a fellow in the Association for Health Services Research.

© 2007 Center for Health Research, Kaiser Permanente
Updated 28 Sept 07