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Gabriel Zayas-cabán

Gabriel Zayas-cabán

Assistant Professor

Gabriel is an Assistant Professor in the Industrial and Systems Engineering Department at the University of Wisconsin-Madison. He also holds an affiliate appointment with the BerbeeWalsh Department of Emergency Medicine in the School of Medicine and Public Health. His research is in operations research with an emphasis on healthcare delivery, stochastic modeling and optimization, and causal inference. His recent focus is on emergency department admission decisions and care transitions. He also has some recent work on evaluating the impact of diverting non-violent offenders to substance use disorder treatment.

Before coming to Wisconsin, Gabriel was a President’s Postdoctoral Fellow at the University of Michigan and completed his Ph.D. at Cornell University’s Center for Applied Mathematics. He received his B.A. in Mathematics from the University of South Florida.

Department

Industrial & Systems Engineering

Contact

Mechanical Engineering Bldg
1513 University Ave
Madison, WI

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  • PhD 2015, Cornell University
  • MS 2010, Cornell University
  • BS 2008, University of South Florida

  • Operations research
  • Markov decision processes
  • queueing
  • scheduling
  • causal inference
  • healthcare delivery
  • emergency medicine
  • care transitions

  • 2022 College of Engineering, University of Wisconsin-Madison , Faculty Equity and Diversity Award
  • 2020 INFORMS MIF, Early Career Award
  • 2020 College of Engineering, University of Wisconsin-Madison, Jane R. and Jack G. Mandula Assistant Professorship
  • 2019 Leaders in Engineering Excellence and Diversity (LEED), Leaders in Engineering Excellence and Diversity (LLEED) Faculty award
  • 2015 University of Michigan, President's Postdoctoral Fellowship
  • 2013 Cornell University, Zellman Warhaft Commitment to Diversity Graduate Student Award
  • 2011 Alfred P. Sloan Foundation, Alfred P. Sloan Fellowship
  • 2008 National Defense, National Defense Science and Engineering Graduate Fellowship

  • Gomez, J. C., Cochran, A. L., Patterson, B. W., & Zayas-Cabán, G. (2024). Evaluation of a Split Flow Model for the Emergency Department. Manufacturing and Service Operations Management, 26(3), 911-930 https://doi.org/10.1287/msom.2022.0003
  • Alvarez Avendaño, S. A., Alagoz, O., Oruongo, J., & Zayas-Cabán, G. (2024). Optimizing patient transitions to skilled nursing facilities. IISE Transactions https://doi.org/10.1080/24725854.2024.2313652
  • David Gomez, J. C., Cochran, A., Smith, M., & Zayas-Cabán, G. (2023). Prediction of rehospitalization and mortality risks for skilled nursing facilities using a dimension reduction approach. BMC Geriatrics, 23(1) https://doi.org/10.1186/s12877-023-03995-y
  • Zayas-Cabán, G., & Cochran, A. L. (2023). Scheduling servers in a two-stage queue with abandonments and costs. Probability in the Engineering and Informational Sciences, 37(3), 833-851 https://doi.org/10.1017/S0269964822000213
  • Odeh Couvertier, V., Patterson, B. W., & Zayas-Cabán, G. (2022). Association between advanced image ordered in the emergency department on subsequent imaging for abdominal pain patients. Academic Emergency Medicine, 29(9), 1078-1083 https://doi.org/10.1111/acem.14541
  • Sagorac Gruichich, T., David Gomez, J. C., Zayas-Cabán, G., McInnis, M. G., & Cochran, A. L. (2021). A digital self-report survey of mood for bipolar disorder. Bipolar Disorders, 23(8), 810-820 https://doi.org/10.1111/bdi.13058
  • White, V. M., Avendano, S. A., Albert, L. A., Zgierska, A. E., Balles, C. J., & Zayas-Cabán, G. (2021). Impact of a community-policing initiative promoting substance use disorder treatment over criminal charges on arrest recidivism. Drug and Alcohol Dependence, 227 https://doi.org/10.1016/j.drugalcdep.2021.108915
  • Zayas-Cabán, G., Lodree, E. J., & Kaufman, D. L. (2020). Optimal Control of Parallel Queues for Managing Volunteer Convergence. Production and Operations Management, 29(10), 2268-2288 https://doi.org/10.1111/poms.13224
  • Alvarez Avendaño, S. A., Cochran, A. L., Patterson, B., Shah, M., Smith, M., & Zayas-Cabán, G. (2020). The Average Effect of Emergency Department Admission on Readmission and Mortality for Older Adults with Chest Pain. Medical Care, 58(10), 881-888 https://doi.org/10.1097/MLR.0000000000001375
  • Zayas-Cabán, G., & Lewis, M. E. (2020). Admission control in a two-class loss system with periodically varying parameters and abandonments. Queueing Systems, 94(1-2), 175-210 https://doi.org/10.1007/s11134-019-09620-3

  • I SY E 417 - Health Systems Engineering (Spring 2025)
  • I SY E 890 - Pre-Dissertator's Research (Spring 2025)
  • I SY E 320 - Simulation and Probabilistic Modeling (Fall 2024)
  • I SY E 603 - Special Topics in Engineering Analytics and Operations Research (Fall 2024)
  • I SY E 890 - Pre-Dissertator's Research (Fall 2024)
  • I SY E 890 - Pre-Dissertator's Research (Summer 2024)
  • I SY E 890 - Pre-Dissertator's Research (Spring 2024)
  • I SY E 990 - Research and Thesis (Spring 2024)
  • I SY E 417 - Health Systems Engineering (Fall 2023)
  • I SY E 890 - Pre-Dissertator's Research (Fall 2023)
  • I SY E 990 - Research and Thesis (Fall 2023)
  • I SY E 890 - Pre-Dissertator's Research (Summer 2023)
  • I SY E 990 - Research and Thesis (Summer 2023)