About Us

Randolph D. Hubach, PhD, MPH

Center Director

rhubach@purdue.edu

Dr. Randolph Hubach is the Director of the Center for Rural and Migrant Health, as well as the department head for Public Health. He is also the Co-Director of the Sexual Health Research Lab at Purdue University and Associate Professor of Public Health. He holds a Ph.D. in Health Behavior from Indiana University’s School of Public Health and MPH from California State University, Fullerton. Early in his career, Dr. Hubach’s research and practice experiences included serving as PI on a federally funded community-based sexual health intervention project, developing managed care programs for local public health and mental health jurisdictions, and serving in leadership positions in multiple community health coalitions and planning processes. As a behavioral scientist and public health researcher, he has gained a practical understanding of the challenges associated with the delivery of public health programs that are scientifically sound and responsive to the needs of diverse communities.  
Dr. Hubach’s research interests include using community engaged principles to address sexuality-related health disparities, sexual behavior, LGBT population health, and HIV/AIDS within urban and rural communities.
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Cody J. Mullen, PhD

Center Associate Director

cjmullen@purdue.edu

Dr. Cody Mullen is a Clinical Associate Professor and director of the Master of Health Administration (MHA) Degree program.  In this role, he works closely with industry partners, faculty, and students to deliver the MHA program.  Dr. Mullen is committed to ensuring graduates are prepared to make a meaningful impact with their future employer.  Prior to joining Purdue, Dr. Mullen worked at the Indiana Rural Health Association (IRHA) as its Policy, Research, and Development Officer.  With IRHA he served as a project director and evaluator with projects focusing on infant mortality, chronic disease management, and telehealth.
Dr. Mullen’s research focus surrounds the application of scientific and engineering principles and theoretical frameworks to examine trends, impact patient outcomes, and improve care coordination in the realm of health services and patient-centered outcomes research.  His expertise lies in project development and execution in diverse acute care and outpatient settings, including rural, urban, and resource-constrained communities.  He leads and executes a strong research portfolio as an independent investigator specifically on vulnerable populations, including physically, mentally, or cognitively disabled individuals as well as individuals living in rural communities or other health provider shortage areas.  He has received doctoral training in health policy, health administration and management, epidemiology, and biostatistics.
Dr. Mullen has been active in health services research for over 10 years, working on projects ranging from infant mortality to hospital readmissions to the utilization of assistive technology by individuals with a disability. Dr. Mullen is interested and active with the Patient Centered Outcome Research Institute as an ambassador.  He is active with the American Public Health Association currently serving as the co-chair of the Rural Health committee of the Medical Care Section and section chair elect for the Medical Care Section.  Dr. Mullen is a past National Rural Health Association (NRHA) fellow and currently serves on their Board of Trustees and chair of the Public Health Constituency Group.  Locally, Dr. Mullen is active with the Arc of Indiana, serving on the Board of Directors as its President.  He also serves on the Board of Directors of the Arc of Indiana Foundation and Midland Meals.

Yumary Ruiz, PhD, MPH

Center Associate Director

ruiz46@purdue.edu

Dr. Yumary Ruiz is an Associate Professor in the College of Health and Human Sciences’ Department of Public Health. Her community-based and engaged research focuses on health disparities, behavior change, population mobility, and risk and promotive factors that impact the health and well-being of vulnerable populations particularly disenfranchised youth from rural Latinx farmworker/agricultural families and families experiencing homelessness/ housing instability. To this work, she applies quantitative and advanced skills in qualitative research to examine multilevel factors (individual, social, and community) that put populations at risk and the conditions that facilitate connection, a sense of purpose, and resilience. Her work also targets health promoting mechanisms (e.g., Community Health Worker Models) that mitigate the harmful effects of socioeconomic and health disadvantages through intervention development, implement, and evaluation.

Lindsay Williams, MPH

Program Manager

lindsayw@purdue.edu

Lindsay Williams is a Program Manager in the Department of Public Health at Purdue University. They earned their Master of Public Health with a concentration in Family and Community Health at Purdue University. Lindsay has spent much of her professional career thus far serving adolescents and underrepresented communities through federal programming and advocacy.

Susan Grasham, MS

Program Manager

sgrasham@purdue.edu

Susan Grasham is a Program Manager in the Department of Public Health at Purdue University, and the Center for Rural and Migrant Health. She holds an MS in Corporate Training and Communication from Purdue University and has previously managed faculty and leadership programs as well as planned faculty events in the Purdue University Office of the Provost.
A passion for working with public health has grown from a decade of leadership in youth mentoring organization, COACH Kids of Clinton County. She witnessed there first-hand how healthy relationships, coalition-building and community connections have shown themselves as pathways to help youth find lifelong success, especially youth from underrepresented populations. She most enthusiastically engages when discussing strengths and focusing on how youth can dial up their best, most vital personal qualities to enhance their lives and their community.

Amanda L. Eldridge, MSCJ

Data and CHWTP Enrollment Coordinator

aleldrid@purdue.edu

Amanda Eldridge is the Data and Enrollment Coordinator for the Community Health Worker Training Program (CHWTP). She earned her Bachelor of Arts Degree in Criminal Justice from Indiana University and her Master of Criminal Justice from Boston University. Amanda has worked in the criminal justice system in different agencies and positions and understands how impactful Public Health is on justice involved individuals and the community.