CHEPS Faculty & Staff

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Amy Cohn PhD, Faculty Director

Amy Ellen Mainville Cohn (she/her) is an Arthur F. Thurnau Professor in the Department of Industrial and Operations Engineering at the University of Michigan, where she also holds an appointment in the Department of Health Management and Policy in the School of Public Health. Dr. Cohn is the Faculty Director of the Center for Healthcare Engineering and Patient Safety (CHEPS). She holds an A.B. in applied mathematics, magna cum laude, from Harvard University and a PhD in operations research from the Massachusetts Institute of Technology. Her primary research interests are in applications of combinatorial optimization, particularly to healthcare and aviation, and to the challenges of optimization problems with multiple objective criteria. She values teaching, mentoring, having a positive impact on society through her work, and helping to foster a vibrant, diverse, nurturing community. She and her husband Jonathan are the proud parents of two sons, Tommy and Peter. 

Email: amycohn@umich.edu
Website: amycohn.engin.umich.edu


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Gene Kim, Administrative Assistant

Gene (they/she/he – I’ve been called them all and they all work for me) graduated with a BA from U-M and then an MBA from EMU. They have worked at the university since 2006 and at CHEPS since 2010. They enjoy dancing ballet, spending time with their dog, and gardening.

Email: genehkim@umich.edu


William Pozehl, Research Area Specialist

Billy Pozehl (he/him) is a Research Specialist at CHEPS. He began working at the Center as an undergraduate student researcher and holds BSE and MSE degrees in Industrial and Operations Engineering. He has been full-time staff since 2015. He enjoys helping our student CHEPSters brainstorm the challenges they face as they work on our projects and spends his free time watching Michigan sports.

Email: pozewil@umich.edu


Diawen Zhang, Research Fellow

Daiwen Zhang (he/him) is a Research Fellow at CHEPS. He began working at CHEPS in the summer of 2021 after earning his MS in Industrial and Operations Engineering here at the University of Michigan.

Email: dwzhang@umich.edu


Christine Linebaugh, Staff Specialist

Christine Linebaugh (she/her) is a Staff Specialist at CHEPS, managing various projects and working on operations and administration here at CHEPS. She has a background in healthcare and began working at CHEPS in October 2021. Christine enjoys spending time with her husband, two daughters, and dogs.

Email: lineb@umich.edu


Emmett Springer, CHEPS & Michigan Medicine Fellow

Emmett Springer (he/him) is a CHEPS and Michigan Medicine Fellow. After earning a BSE in Biomedical Engineering at the University of Michigan, he began working as a student at CHEPS while earning his MS in Industrial & Operations Engineering. After finishing his master’s, he became a staff member at CHEPS in May 2022. Emmett enjoys theatre, playing board games, music, reading, and spending time in nature.

Email: ecspring@umich.edu


Hooman Niktafar, Software Manager

Hooman Niktafar (he/him) is the CHEPS Software Manager who possesses over 20+ years of experience across the IT sector. Prior to joining CHEPS, Hooman earned a Bachelor’s Degree in Computer Science and worked for several Fortune 500 companies. Hooman holds an extensive background involving software integration/development and cross-functional team management. In his free time, Hooman enjoys playing video games, board games, and kayaking.

Email: nhooman@umich.edu


Marina Epelman, Faculty Affiliate

Marina Epelman (she/her) is a CHEPS Faculty Affiliate as well as an IOE professor at the University of Michigan. She received a BA in Math from Cornell University, a Ph.D. in Operations Research from Massachusetts Institute of Technology, and has been a professor since. Aside from collaborating on CHEPS projects in patient and provider scheduling, Marina is working with Michigan Medicine on an improved optimization model for radiation treatments for cancer patients. Marina is an enthusiast of Apple technologies, Red Sox baseball, and dogs.

Email: mepelman@umich.edu