Skip Navigation


Center Faculty and Staff


Mindi B. Levin, MS, CHES ®
Founder and Director, SOURCE
Faculty Appointments:
Health, Behavior and Society (primary) & Health Policy and Management (joint), Johns Hopkins Bloomberg School of Public Health
Johns Hopkins University School of Nursing (joint)

Tyler Derreth, PhD
Associate Director

Tony Bridges
Assistant Director

Vanessa Pinkney
Administrative Coordinator

Ezzat Shehadeh
Communications Specialist

Glenn L. Ross
Community Consultant

General Contact Information for SOURCE Team
(410) 955-3880  

Meet Our Team

ml-crop1Mindi B. Levin, MS, CHES ® Founder and Director


Mindi is the founder and director of SOURCE, the community engagement and service-learning center, serving the Johns Hopkins University (JHU) Schools of Public Health, Nursing, and Medicine. In this capacity, she leads the team and supports the creation of strategies to integrate public health practice and community outreach activities into academic training in the health professions. These efforts are accomplished in partnership with approximately 100 Baltimore community-based organizations, as well as faculty, staff, and students. Mindi provides programs and services that embrace the values of public service, social justice, citizenship, ethical decision-making, activism, civic professionalism, human rights, diversity, and reciprocity.

Additionally, she holds faculty appointments in the Bloomberg School of Public Health’s Department of Health, Behavior and Society (primary), the Department of Health Policy and Management (joint), and the JHU School of Nursing (joint). She teaches and supports a variety of service-learning and experiential learning courses on campus. She developed and teaches the Baltimore Community Practicum course (JHSPH) and Topics in Interdisciplinary Medicine: Health Care Disparities (SOM). She created and serves as the faculty co-sponsor of the certificate program in Community-Based Public Health. Mindi also coordinates the JHU School of Nursing’s Community Outreach Program. She worked with colleagues to develop several key SOURCE initiatives, including SOURCE Service-Learning Faculty and Community Fellows Program, SOURCE Service Scholars, Connection Community Consultants, Baltimore Action Projects, HIV Counseling and Testing, and the Identity Clinic.

A Baltimore native, Mindi earned a bachelors degree in Community Health Education from the University of Maryland, College Park and a masters degree in Health Administration from Towson University. She is a Certified Health Education Specialist.

tyler-headshotTyler Derreth, PhD - Associate Director


R. Tyler Derreth, PhD. is the associate director of SOURCE and faculty in the Department of Health, Behavior and Society at the Johns Hopkins Bloomberg School of Public Health. His administrative work centers on collaborations faculty, staff, and students as they develop community partnerships that address social issues through various academic and co-curricular experiences. These efforts include leading the SOURCE Service-Learning Fellows program, supporting service-learning course development, community partnership outreach and establishing SOURCE’s research agenda. His research concentrates on the role of universities in cities, urban community–university partnerships, critical pedagogies, and social justice-oriented educational practices. In particular, he is focused on developing equitable urban university–community partnerships through service-learning and other academic practices that center marginalized voices in a critical educational environment.

Tyler earned a BA in English at Dickinson College before returning to his hometown of Baltimore to teach middle school English. He then went on to earn his doctorate in higher education at Penn State University where his dissertation focused on developing a sociocultural framework of community-based learning that breaks down institutional hierarchies. He is thrilled to once again be home in Baltimore working with its communities.



tony-cropTony Bridges - Assistant Director


Tony Bridges serves as assistant director with SOURCE. As assistant director, Tony supports the growth and effectiveness of community involvement initiatives. He works closely with students, staff and faculty on their efforts to collaborate with Baltimore communities. His duties involve counseling, educational program management, event planning, advising and community partnership coordination. Tony also has oversight of SOURCE's HIV Testing & Counseling Program as well as the Identity Clinic, a collaboration between Living Classrooms Foundation and SOURCE, which seeks to assist reentering individuals in navigating the costly and cumbersome process of reclaiming their identification documents.

Prior to joining SOURCE, Tony held several positions in government and community affairs. He is the former director of human services and operations for Park Heights Renaissance, a non-profit organization established to ensure the objectives of the Park Heights Master Plan of Baltimore are implemented. As director, Tony was responsible for supervising, managing, directing and growing the human service activities of the organization, as well as community capacity-building and outreach. He is also the former chief of staff for the Maryland Transit Administration (MTA), a division of the Maryland Department of Transportation and one of the largest multi-modal transit systems in the United States. While with the MTA, Tony focused on government relations as well as performance management for the agency.  

Tony is a member of the Maryland House of Delegates, where he has served since January of 2018. He earned a bachelor's degree in mass communication from Frostburg State University, and received his certificate in strategic public relations and integrated communications from Towson University.


vp-headshotVanessa Pinkney - Administrative Coordinator


Vanessa Pinkney serves as SOURCE’s primary point of contact, responding to general inquiries, answering our phones, and checking SOURCE’s general email account. She also schedules meetings, handles the budget, and assists with planning and implementing SOURCE’s programs and activities. Vanessa is the backbone to our operation! 



ezzEzzat Shehadeh - Communications Specialist


Ezzat Shehadeh joined SOURCE in 2018 as our inaugural Communications and Events Specialist. In this role, Ezzat manages SOURCE's Weekly Service Scoop newsletter, social media accounts, website content, event advertising and e-mail marketing campaigns. 

Ezzat comes to SOURCE from George Mason University after serving as the Program and Communications Coordinator in the Center for Global Islamic Studies. Ezzat is a bi-lingual (Arabic and English) communications, marketing, programming and editing professional with over ten years of communication experience in media outlets and higher education. He earned his bachelor's degree in communication from George Mason University. 


glennGlenn Ross - Community Consultant


Glenn Ross serves as a Community Consultant to SOURCE. His primary functions with the center include: conducting tours of the East Baltimore community, speaking in a variety of academic settings, assisting with orientation activities for new students, and serving as a member of SOURCE’s Governing Board and Community Council. Glenn is active in a variety of local groups, and provides SOURCE with important updates and news from the surrounding communities. He has been a valuable member of our SOURCE team since the center was founded in 2005.