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Faculty & Staff



Michael de Arellano

Michael de Arellano, Ph.D.

Senior Associate Dean for Diversity, College of Medicine
Director of Mental Health Disparities and Diversity Program
Professor of Psychiatry and Behavioral Science   

Dr. Michael de Arellano is the the founding director of the Mental Health Disparities and Diversity Program at MUSC. He serves as the Senior Associate Dean for Diversity within the College of Medicine and is also the Director of the National Crime Victims Research and Treatment Center's Hispanic Outreach Program.

Chanita Hughes-Halbert

Chanita Hughes-Halbert, Ph.D.

Professor, College of Medicine
Mental Health Disparities and 

Dr. Hughes-Halbert is a nationally recognized expert in cancer prevention and control among diverse populations and her research is supported by numerous grants from the National Cancer Institute and the National Human Genome Research Institute. Dr. Hughes-Halbert is also PI of an academic-community partnership funded by the National Institute on Minority Health and Health Disparities to develop community-based interventions to improve health outcomes in African Americans. The results of Dr. Hughes-Halbert’s research have been published in influential journals in the fields of cancer prevention, clinical oncology, medicine, genetics, and public health. She is a member of the Board of Scientific Advisors at the National Cancer Institute.

Tatiana Davidson

Tatiana Davidson, Ph.D.

Assistant Professor, College of Nursing
Mental Health Disparities and Diversity 

Dr. Davidson is an Assistant Professor of Psychiatry and Behavioral Sciences at the Medical University of South Carolina. Dr. Davidson’s research has focused on addressing mental health care disparities by maximizing reach and receipt of evidence-based treatments among traumatic stress and other vulnerable populations through the development, evaluation, and dissemination of innovative, technology-based resources. She has been awarded both external and internal grants to examine how cultural variables can influence formal mental health treatment seeking, access and completion among Latina/o populations, and to adapt evidence-based resources to mobile health delivery formats to reduce traditional barriers to mental health treatment among Latina/o youth and families.

Regan Stewart

Regan Stewart, Ph.D.

Assistant Professor, College of Medicine
Mental Health Disparities and Diversity 

Dr. Stewart is an Assistant Professor and bilingual (English/Spanish) licensed clinical psychologist in the Mental Health Disparities and Diversity Program and is also the Director of the Telehealth Outreach Program (TOP). Her clinical and research interests center on addressing mental health disparities for underserved trauma-exposed youth (e.g., ethnic/racial minority, economically disadvantaged, rural/urban), particularly through the use of innovative service-delivery models, including community-based and telehealth technology. Additionally, Dr. Stewart currently serves as Co-Investigator on multiple projects in the U.S. and in Latin America focused on improving access to and completion of evidence-based trauma-focused treatment for Latino/a populations.