The Walker School is supported by a team of faculty and staff members who are committed to providing students with a first-class educational experience. Meet our administration and staff, advisory board and full-time and adjunct faculty from the departments of Business, Computer and Information Sciences, and Management.

David Porras, PhD
Associate Dean

Debbie Ray
Director of Operations

Denise Harrell
Director, Recruitment and Retention

Lucy Bodet
Academic Advisor, Cohort Programs

Jack Croghan
Program Administrator, Sports and Entertainment Management

Carly Surkamp
Business Department Coordinator

Madelyn Irovic
Computer and Information Sciences Department Coordinator

Sheanique Syms
Graduate Assistant

Elizabeth Risik, PhD
Chair, Associate Professor

Rich Dippel, JD
Associate Professor

Mitch Ellison, PhD
Associate Professor

Baichun Feng, PhD
Associate Professor

Steve Hinson, PhD
Professor, MBA Program Director

Daniel K. Mueller, PhD
Visiting Assistant Professor

Run Niu, PhD
Professor

Mary Paine, MPhil, DHSc, RN
Assistant Professor
Mary Paine, MPhil, DHSc, RN, is an experienced healthcare executive and epidemiologist. Her areas of expertise include clinical trials research, evidence-based medicine and healthcare technology assessment, medical communications and informatics. Paine has previously held senior management positions in the home care, health insurance and medical communications industries. She also has experience as an epidemiologist for numerous clinical trials, as well as the Yale Congestive Heart Failure Study. Paine received a BSN degree from Georgetown University, a Master of Philosophy degree in Chronic Disease Epidemiology from Yale University and a Doctor of Health Science degree with a concentration in Leadership and Organizational Behavior from A.T. Still University. Her awards include the National Research Service Award from the National Heart, Lung and Blood Institute, a Yale Fellowship, the Georgetown University Dean’s Citation and membership in Sigma Theta Tau, the National Honor Society of Nursing. Her clinical background is in cardiology, renal transplant and care management.

Brad Scott, PhD
Professor

Doug Whitman, DSc
Assistant Professor
Doug Whitman earned a Doctor of Science in Healthcare Management from the University of Alabama at Birmingham. He also earned an MBA from Duke University and his undergraduate degree from the University of Arkansas. Currently, Whitmas serves as the MHA program lead and assistant professor of Health Administration in the Walker School of Business & Technology at Webster University in St. Louis. He began teaching Healthcare Management at the University of North Carolina in 2014.
Prior to entering academia, Whitman spent 20 years in various healthcare leadership positions. His roles included president of small nonprofit healthcare organization, vice president of a large national healthcare company and director of strategic growth for a mid-sized regional healthcare company. Most recently, he worked as a healthcare consultant specializing in crisis change management. He holds professional licenses as both a nursing home administrator and an assisted living administrator. Before entering healthcare, Whitman was the CEO of a technology startup, senior vice president of a broadcasting company and managing director of an investment bank.
Raised in Seattle, Whitman lived in Arkansas and North Carolina before moving to Missouri in 2020. He and his wife, an elementary school teacher, have two children. Outside of his professional life, Whitman is a professional DJ who likes his classic rock loud. He is also an avid runner who completes a 5K most mornings before work and has finished a dozen marathons and triathlons.

Willie J. Rivers, DBA
Department Chair, Associate Professor, Data Analytics
Dr. Will Rivers earned his BS in Computer Science and MS in Applied Analytics from Saint Louis University, and his Doctor of Business Administration (DBA) from the University of Missouri–St. Louis, where his research focused on data professionals’ attitudes and perceptions of data governance. His teaching areas include machine learning algorithms, statistical modeling and predictive analytics.

Adewale Ashogbon, PhD
Assistant Professor, Cybersecurity
Dr. Adewale Ashogbon is an assistant professor of Cybersecurity at Webster University in St. Louis, Missouri. He holds a PhD from Northcentral University in San Diego, California, where his research examined the role of the Diffusion of Innovation Theory in the context of cloud computing adoption. His research interests lies in the intersection of information systems security, cybersecurity, information technology risk and compliance, and data governance. With over a decade of professional experience spanning public and private sectors, Ashogbon specializes in information systems security and cybersecurity audit, information systems management, enterprise risk management and data governance. He previously served as Director of Application Technology Audit at Morgan Stanley in Baltimore. A frequent conference speaker on cybersecurity topics, Ashogbon also publishes his work in reputable information technology engineering journals.

Brenda Boyce, MS
Associate Professor

Velimir Ćosić, MS
Instructor, Cybersecurity
Velimir Ćosić is a cybersecurity management solutions engineer who focuses on finding solutions and working collaboratively in a team environment. Ćosić has skills in implementing highly secure network operations and effectively managing innovative customers and technical support strategies. He has a comprehensive understanding of computer hardware and software, including installation, configuration, management, troubleshooting and support, and is well-versed in the concepts of relational databases, various programming languages and web applications. Ćosić communicates fluently in multiple languages, including English, Croatian and German, and has an advanced grasp of Spanish. He received his BS in Computer Science with an Emphasis in IT Management and his MS in Cybersecurity from Webster University.

Jason Dill, MBA, MS
Instructor, Cybersecurity

Lasanthi Gamage, PhD
Associate Professor, Computer Science

Xue Li, PhD
Assistant Professor, Computer Science
Dr. Xue Li is an assistant professor of Computer Science at Webster University. She holds a PhD in Computer Science from the University of Texas at San Antonio, where she focused on efficient resource management for serverless computing. Her research interests include energy-efficient AI inference, serverless architectures, cloud and edge computing, and fairness-aware resource scheduling. Li has received multiple awards, including a Best Paper Award at the IEEE Cloud Summit 2024, and her work has been published in leading conferences such as CCGrid and IEEE Cloud Summit.

Peter Maher, PhD
Professor, Computer Science

Tonya Rivers, DBA
Instructor, Business Analytics
Dr. Tonya S. Rivers is an educator, executive coach, keynote speaker and digital transformation leader with more than 20 years of experience in IT, healthcare, biotech and telecommunications. She serves as an instructor and program lead for Webster University’s Master of Science in Business Analytics program, leading curriculum innovation, experiential learning and applied analytics using data-driven tools, such as SAP S/4HANA and Power BI.
Rivers holds a Doctor of Business Administration from the University of Missouri–St. Louis, an MBA and dual bachelor's degrees from Webster University. Her teaching and research interests include executive coaching, leadership, organizational behavior, business agility, OKRs and organizational change. A highly regarded consultant, she holds several industry-leading certifications, including ICF Professional Certified Coach, Board Certified Coach, Distinguished Toastmaster, Project Management Professional, Certified Scrum Professional (CSP-SM) and SAFe Practice Consultant.
Rivers is a dedicated volunteer who serves as a board member and strategic advisor for several organizations in the Greater St. Louis community. She is also active in local and national professional organizations, including the Association of Change Management Professionals, Project Management Institute, National Speakers Association and the International Coaching Federation.

Quinn Shao, MA, MS
Professor, Computer Science

Xiaoyuan Suo, PhD
Professor, Computer Science

JiangPing Wang, PhD
Professor, Computer Science

Eric Rhiney, PhD
Chair, Associate Professor

Barrett Baebler, PhD
Associate Professor

Sharilyn Franklin, PhD
Visiting Assistant Professor
Email: sfranklin20@webster.edu

Al Marcella, PhD
Professor

Olumoye Mosud
Visiting Professor, Information Technology Management
Phone: 314-246-8765
Email: yinusamosud@webster.edu
Olumoye Mosud earned a PhD degree in Information Systems and Technology from the University of KwaZulu-Natal, South Africa; two master's degrees in Information Technology in Ladoke Akintola University of Technology and National Open University of Nigeria, two bachelor’s degrees (B.Eng. (Hons) in Mechanical Engineering and B.Sc. (Hons.) in Information and Communication Technology from Ondo State University, Ado-Ekiti and University of Cape Coast).
He is an Information Technology professional certified by CompTIA (A+) and Microsoft (MCP). He is also a Cyber Security professional and forensic examiner certified by Computer Forensics Institute, Nigeria. Mosud belongs to several professional organizations, including Cyber Security Experts Association of Nigeria, Cyber-Security and Forensic Studies, Nigeria; Computer Forensics Institute, Information Technology Professional South Africa, International Association of Engineers (IAENG); Council For Regulation of Engineering in Nigeria, Nigerian Society of Engineers, South African Institute of Occupational Safety & Health. He has over 20 years of undergraduate and postgraduate teaching experience. Before joining Webster University, he was an Associate Professor and Senior Lecturer in Mountain Top University and Caleb University (Nigeria) respectively.

Doug O'Bannon, PhD
Professor

Nisha Ray-Chaudhuri, DBA
Associate Professor, Management

Joe Roberts, PhD
Associate Professor

Dustin Smith, PhD
Associate Professor

Ece Tuncel, PhD
Professor
Brian Ashworth, MBA ’00
Member-at-Large
Amanda Bohnert, BA ’04, MA ’09
Chief Marketing Officer, S. M. Wilson & Co.
Rodney Crim
CEO and President, St. Louis Economic Development Partnership
Jun Fabella, MBA ’94
CEO and Managing Partner, ANiGENT
Chuck Feltz, MA ’89
CEO, Human Capital Institute
Sara Govero, BA ’05, MA ’05
President, Govero Asset Management
Traci O'Bryan
CEO, Arcturis Inc.
Michael Pruett, MBA ’94
Consultant, Impact Consulting
Andre Stevens, MBA ’12
Principal, Slalom

Ali Ovlia, DMgt
Professor Emeritus, Computer and Information Sciences

James Curtis, PhD
Professor Emeritus, Computer and Information Sciences

Jeff Haldeman, PhD
Professor Emeritus, Management

Julie Palmer, PhD
Professor Emeritus, Management

Ed Spillane, PhD
Professor Emeritus, Business

Tom Quirk, PhD
Professor Emeritus, Management