Naoru Koizumi
Assistant Professor

Curriculum Vita

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Current Position
Assistant Professor
School of Public Policy, George Mason University, Arlington, VA

Research Interests

• Stochastic modeling and simulation in health care
• Spatial statistics and Geographic Information Systems (GIS)
• Applied statistics in health care

Education
Hyogo College of Medicine
Hyogo, Japan
Ph.D. in Environmental and Preventive Medicine
March 2005

University of Pennsylvania
Philadelphia, PA
Ph.D. in Regional Science
December 2002

University of Pennsylvania
Philadelphia, PA
M.A. in Regional Science
May 1994

Aoyama-Gakuin University
Tokyo, Japan
B.A. in Business Administration (Minor: Economics)
March 1992

Academic Work Experience
George Mason University
Arlington, VA
Assistant Professor, School of Public Policy
2005 - Present

George Mason University
Arlington, VA
Visiting Assistant Professor, School of Public Policy
2004 - 2005

University of Pennsylvania
Philadelphia, PA
Post-doctoral Researcher
Department of Electrical and Systems Engineering
2003 - 2005

Non-Academic Work Experience
Stone & Webster Consultants, Inc.
Washington, DC
Consultant / Economist
Stone & Webster Consultants, Regulation and Privatization Practice
2001-2002

European Bank for Reconstruction and Development (EBRD)
London, U.K.
Evaluation Analyst
Project Evaluation Department
1998-1999

Inter-American Development Bank (IDB) Washington, DC
Junior Social Development Consultant
Social Operations, Region II
1996-1997

Research Grants
R01, National Institute of Mental Health (NIMH) Total: $1,504,201; Amount Subcontracted to GMU: $301,171
Role: Co-P.I.
2006-2010

R21, National Institute of Mental Health (NIMH) Total: $300,000; Amount Funded Post-doc Salaries: $66,013
Role: Main Analyst (as a member of Key Personnel)
2003-2005

Main Current Research Work
Developing a queueing and a discrete event simulation models that assess the congestion in a mental health system with long-term care facilities. The goal of this project is to develop a decision support tool for mental health policy makers so they can formulate appropriate
residential placement choices.

Study examining demand on various types of mental health agencies in Philadelphia. The
determinants of consumers’ agency selection have been investigated using conditional
multinomial logit models and visualized using GIS.

Bayesian estimation of Weibull mixture distributions for censored survival models. The
length of stay data of psychiatric patients in various residential settings have been used to
estimate a mixture with a fixed number of components using Gibbs sampling.

Refereed Publications/Recent Proceedings and Manuscripts
Koizumi, N, Murata K, Hayashi C, Nishio H, and Goji J. “High Cadmium Accumulation among
Humans and Primates: Comparison across Various Mammalian Species - A Study from Japan” (Biological Trace Element Research, Vol.121, No.3, March, 2008) pp. 205-214

Koizumi, N. and McCann, P. “Living on a Plot of Land as a Tenure Choice: The Case of
Panama” (Journal of Housing Economics, November 2006, In Press)

Koizumi, N., Kuno, E., and Smith, T.E. “Modeling Patient Flows Using a Queueing Network
with Blocking” (Health Care Management Science, Vol. 8, No.1, February 2005) pp. 49-60

Koizumi, N., Iguchi, H and Smith, T.E. “Comparison and Verification of BSE Surveillance in USA and Japan” (Environmental Health and Preventive Medicine, Vol.10, No. 3, May 2005)

Kuno, E., Koizumi, N., Rothbard, A., and Greenwald J. “A Service System Planning Model for Individuals with Serious Mental Illness” (Mental Health Services Research, Vol.7, No. 3,
September 2005) pp. 135-144

Rothbard A. and Koizumi, N. “Cost Effectiveness of a Suicide Prevention Program” at American
Public Heath Association (APHA) Annual Meeting and Public Health Exposition in Boston, MA, USA (Published in Proceedings; Under review)

Koizumi N. and Ikeda M. “Relationship between cadmium concentration in brown rice and SMR
or renal failure mortality of the resident in all prefectures in Japan” (Under review)

Koizumi, N., Kuno, E., He D. and Chen C.H. “Minimizing Welfare Loss Due to Congestion in a
Mental Health System: Queueing and Simulation Analyses” (Under review)

Metlay, J., Smith T.E., and Koizumi N. “Small Area Clustering of Cases of Pneumococcal
Bacteremia” (Under review)

Koizumi, N., Kuno, E. and Smith, T.E. “Factors Affecting the Choice of Mental Health Care
Providers” at North American Conference of Regional Science Association, Toronto, Canada
(Final Stage)

“Housing Decisions in Panama: A Log-Linear Analysis”, Journal of Housing Economics, Forthcoming (with McCann, P.)

“Decision Factors in Mental Health Service Provider Selection and Client Utility Changes Caused by Changes in the Mix of Service Providers” (with Kuno, E.)

“Forecasting Demand on Psychiatric Beds in Japan” (with Kuno, E. and Oshima, I.)

Recent Refereed Conference PresentationsKoizumi, N. (April 2007) “Minimizing Welfare
Loss Due to Congestion in a Mental Health
System: Queueing and Simulation Analyses”
at the Health Care Management Science
section of the Institute of Mathematics and
Its Application (IMA), London, United Kingdom

Koizumi, N. (November 2006) “Factors Affecting the Choice of Mental Health Care Providers”
at North American Conference of Regional Science Association, Toronto, Canada

Koizumi, N. (November 2005) “Cost Minimization Using Simulation: An Application of a Metamodel to Analyze an Optimal Housing Array for Mentally Ill” at the North American Conference of Regional Science Association, Las Vegas, NV, USA

Teaching Award/Qualifications

Award
School of Public Policy Teaching Award (2008)

Qualifications
PUBP704: Statistical Method for Policy Analysis
PUBP720: Managerial Economics in Public Policy
PUBP710: Spatial Data Analysis with GIS
PUBP804: Multivariate Statistical Analysis in Public Policy

Professional Memberships
Regional Science Association International (RSAI)
Institute for Operations Research and the Management Sciences (INFORMS)
Academy Health
Institute of Mathematics and Its Application (IMA)