DPH Faculty and Staff


Walter A. Zelman, Ph.D., M.A.
Professor and Chair
[email protected]
Teaching areas: Health policy, health care services and systems
Research areas: Healthcare politics and policy

Evelyn N. Alvarez, Ph.D., M.P.H.
Assistant Professor
[email protected]
Teaching areas: Environmental health, environmental justice, sustainability
Research areas: Sustainability, urban greenspace, citizen science, air pollution

Ndifreke Etim, Ph.D.
Assistant Professor
[email protected]
Teaching Interests: Epidemiology, Data Analysis, Biostatistics
Research interests: Health Disparities, Rearrests/Recidivism

Behjat A. Sharif, Ph.D., MCHES
[email protected]

Teaching focus: Competencies in community health, public health education and health promotion, public health administration, health communication and advocacy, internship development and supervision, certification and accreditation.
Research focus: Health status of ethnic populations, community empowerment, participation, and partnership, the effectiveness of interventions, achieving health equity, and eliminating disparities.

Beth R. Hoffman, Ph.D., M.P.H.
Teaching areas: Writing, research methods, current issues
Research areas: Drug use & mental health among LGB populations, transgender women’s health, first-generation experience

Office: 319 Simpson Tower
Phone: (323) 343-4706
[email protected]

Nan Zhao Martin, Ph.D., M.A., M.P.H.
Associate Professor
Teaching areas: Health communication, health behaviors, research methods
Research areas: Social influence, vaccination communication, cancer communication, applied health communication
[email protected]

Melanie D. Sabado-Liwag, Ph.D., M.P.H.
Associate Professor
Teaching areas: global health, epidemiology, urban health, health disparities
Research areas: minority health and health disparities, risky behaviors and chronic disease outcomes across the life course, cancer prevention, community-based participatory

Office: 307 Simpson Tower
Phone: (323) 343-4746
[email protected]

Gregory D. Stevens, Ph.D., M.H.S. 
Teaching areas: Health policy, health care systems, health disparities and vulnerable populations
Research areas: Healthcare systems and public health, particularly pediatrics and primary care
[email protected]

William M. London, Ed.D., M.P.H.
[email protected]
Teaching areas: Consumer health, epidemiology, data analysis
Research areas: Health fraud, quackery, and misinformation


Mariya Benusovich, M.D.
Ana-Alicia Carr, M.P.H.
Wai Ping (Athena) Foong, M.P.H.
Joanna Gaspar, MS, M.P.H.
Michael Janson, M.P.H.
Ralonda Johnson, M.P.H.
Brett Koontz, D.P.A.
James Lott, Psy.D., M.B.A.
Marisa Marcarello, M.P.H., MSN, FNP-C, CHES
Joelle May, Ph.D., M.P.P.
Monica Montano, M.P.H.
Kimberly Morland, Ph.D., M.P.H.
Akiko Tagawa, M.P.H.
Stephanie Toledo McGuire, M.P.H.


Caroline G. Trejo
Administrative Support Coordinator II
Office: Simpson Tower, 3rd Floor
Phone: (323) 343-4740
Fax: (323) 343-6400
Email: [email protected]