Nan Liu
Last Update: October 1, 2015
Contact Information
722 West 168th Street Phone: (212) 304-5591 Department of Health Policy & Management Fax: (212) 305-3405
Mailman School of Public Health E-mail: [email protected]
Columbia University WWW: www.columbia.edu/~nl2320
New York, NY 10032 USA Research
Interests
Healthcare Management, Service Operations, Consumer Behavior, Stochastic Models, Markov Decision Process, Data Analytics
Academic Appointments
Columbia University, Mailman School of Public Health, New York, NY Assistant Professor of Health Policy and Management 2009-present
Education University of North Carolina, Chapel Hill, NC
Ph.D., Operations Research 2009
Advisors: Vidyadhar G. Kulkarni and Serhan Ziya
M.S., Statistics 2009
Advisor: Haipeng Shen
National University of Singapore, Singapore
M.Eng., Civil Engineering (specialized in Transportation Engineering) 2004 Tsinghua University, Beijing, China
B.Eng., Civil Engineering 2002
Publications and Working Papers (by areas)
Operations Management
Liu, N. (2015) Optimal Choice for Appointment Scheduling Window under Pa-tient No-show Behavior. Production and Operations Management (Published online before print July 8, 2015).
• Third place in the 2013 INFORMS Junior Faculty Interest Group (JFIG) Paper Competition.
Feldman, J., N. Liu, H. Topaloglu and S. Ziya. (2014) Appointment Scheduling under Patient Preference and No-Show Behavior. Operations Research, 62(4) 794-811.
Liu, N. and S. Ziya. (2014) Panel Size and Overbooking Decisions for Appointment-based Services under Patient No-shows. Production and Operations Manage-ment, 23(12) 2209-2223.
in Dynamic Environments. Manufacturing and Service Operations Manage-ment 15(2) 280-291.
• Presented at the 2012 MSOM Healthcare SIG Conference.
Liu, N., S. Ziya and V.G. Kulkarni. (2010) Dynamic Scheduling of Outpatient Appointments under Patient No-shows and Cancellations. Manufacturing & Service Operations Management 12(2) 347-364.
Liu, N. and V.G. Kulkarni. (2009) Decomposition Property for Markov-modulated Queues with Applications to Warranty Management. Probability in the Engineering and Informational Sciences 23(3) 433-447.
Liu, N., S. Finkelstein, M. Kruk, and D. Rosenthal. (2014) When Waiting to See a Doctor is Less Irritating: Understanding Patient Preferences and Choice Behavior in Appointment Scheduling. Invited for revision at Management Science.
• Presented at Data-Driven Decisions in Healthcare: Transition Workshop, Statistical and Applied Mathematical Sciences Institute (SAMSI), 2013. • Presented at the 2014 MSOM Healthcare SIG Conference.
• Invited to present at the “Patient-Centric Healthcare Management in the Age of Analytics” conference at Kelley School of Business, Indiana University, October 2015.
Kong, Q., S. Li, N. Liu, C.P. Teo and Z. Yan. (2015) Appointment Scheduling under Schedule-Dependent Patient No-Show Behavior. Working paper. Truong, V.A., X. Wang and N. Liu. (2014) Integrated Scheduling and Capacity Planning with Considerations for Patients’ Length of Stay. Working paper. Liu, N., P. van de Ven and B. Zhang. (2015) Managing Appointment Offering under Patient Choices. Working paper.
Liu, N., G. Pang and R. Wang. (2015) Managing Customer Choice in Queueing Systems. Work in progress.
Liu, N. and Z. Sun. (2015) Optimal Control of Patient Flow in Emergency Department. Work in progress.
Liu, N., G. Wan and S. Wang. (2015) Design of Appointment Templates with Time-varying Walk-ins. Work in progress.
Healthcare Administration and Policy
Green, L. and N. Liu. (2015) A Study of New York City Obstetrics Units Demonstrates the Potential for Reducing Hospital Inpatient Capacity. Medical Care Research and Review, 72(2), 168-186.
• Invited to present at the 4th Rutgers Applied Probability Conference, Rutgers Business School & Rutgers Robert Wood Johnson Medical School, October 2015.
• Showcase Presentation, POMS College of Healthcare Operations Man-agement Miniconference 2015.
• Media coverage: Excess obstetrics beds cost $26 million a year, Crain’s New York Business, Health Pulse cover story on April 10, 2015.
Poghosyan, L., J. Shang, J. Liu, H. Poghosyan, N. Liu and B. Berkowitz. (2015) Nurse Practitioners as Primary Care Providers: Creating Favorable Practice Environments in New York State and Massachusetts. Health Care Management Review, 40(1), 46-55.
Schnall, R. and N. Liu. (2014) Timing Matters: HIV Testing Rates in the Emergency Department. Nursing Research and Practice, vol. 2014, Article ID 575130.
Schnall, R., N. Liu, J.D. Sperling, R.A. Green, S. Clark and D.K. Vawdrey. (2014) An Electronic Alert for HIV screening in the Emergency Department Increases Screening but not the Diagnosis of HIV. Applied Clinical Informatics, 5(1) 299-312.
Liu, N., S. Finkelstein and L. Poghosyan. (2014) A New Model for Nurse Practitioner Utilization in Primary Care: Increased Efficiency and Implication. Health Care Management Review, 39(1) 10-20.
Zhang, L. and N. Liu. (2014) Health Reform and Out-of-Pocket Payments: Lessons from China. Health Policy and Planning, 29(2) 217-226.
Klein, D., M. Laugesen and N. Liu. (2013) The Patient Centered Medical Home - A Future Standard for American Healthcare? Public Administration Review (special issue on health care reform) 73(S1) 582-592.
• Commented by Jacqueline K. Spencer, MD, Medical Director of VA Boston Healthcare System, in the commentary “A Variation on the Patient-Centered Medical Home: Transforming Primary Care within the Veteran’s Health Administration” published in the same issue.
Finkelstein, S., N. Liu, B. Jani, D. Rosenthal and L. Paghosyan. (2013) Ap-pointment Reminder Systems and Patient Preferences: Patient Technology Usage and Familiarity with Other Service Providers as Predictive Variables. Health Informatics Journal 19(2) 79-90.
Liu, N. and T. D’Aunno. (2012) Choosing the Right Practice Model to Involve Nurse Practitioners in Primary Care: A Perspective from Queueing Analysis. Health Services Research 47(2) 594-613.
• Media coverage: Patching Our Primary Care System, Washington Post , April 3, 2012.
• Cited in “Primary Care for the 21st Century: Ensuring a Quality Physician-Led Team for Every Patient”, a white paper prepared by the American Academy of Family Physicians.
Finkelstein, S. N. Liu, B. Jani and D. Rosenthal. (2014) Risk-Seekers Prefer Speedy Access to Care Over Quality of Care: The Role of Risk Attitudes in Health Care Utilization. Working paper.
Liu, N. and R. Schnall. (2014) Mandatory HIV Screening may Significantly Increase ED Waiting Times. Working paper.
Transportation and Logistics
Huang, B., N. Liu and M. Chandramouli. (2006) A GIS Supported Ant Al-gorithm for the Linear Feature Covering Problem with Distance Constraints. Decision Support Systems 42(2) 1063-1075.
Liu, N., B. Huang and M. Chandramouli. (2006) Optimal Siting of Fire Sta-tions using GIS and ANT Algorithm. Journal of Computing in Civil Engi-neering 20(5) 361-369.
Liu, N., B. Huang and X. Pan. (2005) Using the Ant Algorithm to Derive Pareto Fronts for Multi-objective Siting of Emergency Facilities. Transporta-tion Research Record 1935 120-129.
Huang, B. and N. Liu. (2004) Bi-level Programming Approach to Optimizing a Logistic Distribution Network with Balancing Requirements. Transportation Research Record 1894 188-197.
Huang, B. and N. Liu. (2004) Mobile Navigation Guide for the Visually Dis-abled. Transportation Research Record 1885 28-34.
Book Chapters
Gans, N, N. Liu, A. Mandelbaum, H. Shen and H. Ye. (2010) Service Times in Call Centers: Agent Heterogeneity and Learning with some Operational Consequences. In Borrowing Strength: Theory Powering Applications – A Festschrift for Lawrence D. Brown. Institute of Mathematical Statistics Col-lections Vol. 6 (2010) 99-123.
Liu, N. (2011) Limit Theorems for Renewal Processes. In Wiley Encyclopedia of Operations Research and Management Science, eds: J.J. Cochran, L.A. Cox, Jr., P. Keskinocak, J.P. Kharoufeh, J.C. Smith, John Wiley and Sons, Inc. Honors and
Awards
Calderone Junior Faculty Research Prize, Mailman School of Public Health, Columbia University, 2014-15. (A competitive, merit-based $25,000 grant to support junior faculty’s research).
Compe-tition, 2013.
Best Reviewer Award, Omega, 2011.
George E. Nicholson Award (best performance in Ph.D. qualifying exams), Department of Statistics and Operations Research, UNC Chapel Hill, 2006. PhD Program Financial Award, UNC Chapel Hill, 2005-2009.
Research Scholarship, National University of Singapore, 2002-2004.
Undergraduate Scientific Innovation Award, Tsinghua University, China, 2001. Academic Excellence Scholarship, Tsinghua University, China, 2000, 2001. Teaching Columbia University, Mailman School of Public Health
Analytics and Managerial Decision Making, required course for MHA (Master of Healthcare Administration) at all levels, full-time, part-time and executive programs, 2015
-–This course teaches data analytics, spreadsheet modeling and selected topics in operations management with a special focus on healthcare management. –Ave. Instructor Rating: 4.1/5.0; Ave. Class Size: 38; Ave. Response Rate: 58%.
Analytic Methods for Health Services Management, required course for MPH (Master of Public Health), 2010-2015.
–This course teaches commonly-used quantitative methods in health services management; topics include research design methodologies, statistical regres-sion and systems modeling.
–Ave. Instructor Rating: 4.0/5.0; Ave. Class Size: 38; Ave. Response Rate: 73%.
Strategic Hospital Management Simulation1(co-teach with Thomas P. Ference
et al.), MPH, 2011-2014; MHA, 2015- ; Executive Education, 2014- .
Appointment Scheduling, online guest lecture for graduate industrial engineer-ing and management students at Technion, Israel, 2014.
Queueing Theory and its Applications in Healthcare, guest lecture for doctoral students in Columbia School of Nursing, 2014, 2015.
Advanced Seminar on Modeling for Public Health and Clinical Research (co-teach with Claire Wang), advanced elective course for doctoral students and clinicians, 2013.
University of North Carolina, Chapel Hill, NC
Decision Models for Business, core undergraduate course, 2006-2007.
Students and Trainees Advised (selected)
Name: Rebecca Schnall (RN, MPH, PhD)
Program: Clinical and Translational Science Awards, KL2 Men-tored Career Development Grant
Title of study: Using queueing theory to improve HIV testing in the emergency department
Term: 2012- present
Current position: Assistant Professor, Columbia School of Nursing
Name: Rupa Prasad (MPH student)
Program: Independent Study
Title of study: Healthcare operations management
Term: Fall 2011
Placement: Medical Student, Miller School of Medicine, University of Miami
Name: David Klein (MPH student)
Program: Research Assistant
Title of study: Research on Patient Centered Medical Homes & Payment models in U.S. health care systems
Term: 2011 - 2013
Placement: Administrative Fellow, NYU Langone Medical Center Invited
Presentations
2016: Johns Hopkins Carey Business School, March (scheduled).
2015: Showcase Presentation at POMS College of Healthcare Operations Man-agement Miniconference, May; Weill Medical College: Cornell University, May. Goizueta Business School: Emory University, September; Rutgers Applied Probability conference, October (scheduled); the “Patient-Centric Healthcare Management in the Age of Analytics” conference at Kelley School of Busi-ness: Indiana University, October (scheduled); McCombs School of BusiBusi-ness: the University of Texas at Austin, October (scheduled); Marshall School of Business: University of Southern California, November (scheduled).
2014: New England VERC (Veterans Engineering Resource Center) Seminar Series, May; M&SOM Healthcare SIG Conference, June.
2013: Department of Industrial and Systems Engineering: University of Min-nesota, May; Data-Driven Decisions in Healthcare: Transition Workshop, Sta-tistical and Applied Mathematical Sciences Institute (SAMSI), May; Weldon School of Biomedical Engineering: Purdue University, November.
2012: M&SOM Healthcare SIG Conference, June; IBM Watson Research Cen-ter, October.
2011: Rutgers Business School, May.
Watson Research Center, October.
2008: School of Management (now Naveen Jindal School of Management): University of Texas at Dallas, October; Department of Industrial Engineering: Tsinghua University, December.
Professional Activities Academic Conferences INFORMS, 2007-2014 INFORMS Healthcare, 2011, 2013, 2015 MSOM, 2008-2009, 2011-2012, 2014-2015 POMS, 2014, 2015
Data-Driven Decisions in Healthcare Workshop, SAMSI, 2012-2013 Mayo Clinic Conference on SE and OR in Health Care, 2009-2010 AcademyHealth, 2010
Service Academic Service
ad hoc referee for IIE Transactions, INFORMS Journal of Computing, Journal of Operations Management, Management Science, Manufacturing & Service Operations Management, Operations Research, and Production and Operations Management, among others.
ad hoc referee for American Journal of Public Health, Health Affairs, Medical Care, and Medical Care Research and Review, among others.
Judge, the INFORMS Public Sector OR Section Best Paper Award, 2015. Judge, the INFORMS Health Application Section student paper competition, 2015.
Review panelist for the Service Enterprise Systems Program at the National Science Foundation, May 2010.
Review committee member for the 5th INFORMS Workshop on Data Mining and Health Informatics, Austin, TX, USA, November 2010.
External referee for the Research Grants Council (RGC) of Hong Kong. External referee for the Health Services Research programme, National Insti-tute for Health Research (NIHR), UK.
Service to the School and the Department
Faculty representative on the Mailman School Admissions Committee; review and present student applications in weekly admission meetings, Columbia Uni-versity, 2010-present.
Junior faculty representative to meet with the CEPH (Council on Education for Public Health) Accreditation Site Visit Team, Mailman School of Public
Health, Columbia University, April 2010.
Organizer of the Internal Colloquia, Department of Statistics and Operations Research, University of North Carolina at Chapel Hill, 2008-2009.
External Service
Planning committee member for the Greater New York Hospital Association-United Hospital Fund Symposium on Health Care Services. 2011-present. (This Symposium was inaugurated in 1990. It is held each year to foster collaboration on and understanding of current health care research in New York, build bridges among health services researchers and practitioners, and showcase the New York health services research community.)