Program on Immigrants and Unhoused Communities

About the program

The FXB Center’s Program on Immigrants and Unhoused Communities is a unique place for scholar-practitioners who are both in the classroom and working directly with affected communities. The program highlights the need for greater public health involvement and a human rights-based focus on the health of people marginalized by economic impoverishment, displacement, xenophobia and racism in the United States. Migration and homelessness, structural determinants of health which increasingly overlap, broadly impact the health of families, child development, and community wellbeing. Increased criminalization of both groups negatively impacts access to health-promoting services and long-term health outcomes.

This work includes a new Partnership for Community Mental Health and Immigrant Wellbeing, co-led by Dr. Maggie Sullivan and Dr. Jocelyn Chu. The Partnership aims to better understand the local landscape of community mental health supports for immigrants, grow academic-community collaborations to support immigrant mental health, and create mutually beneficial learning opportunities for public health students and immigrant-serving organizations.

The Program includes a course on health and homelessness, one of the few such graduate-level public health courses, co-taught by Dr. Sullivan and Dr. Jill Roncarati; collaborative research in immigrant health; and student mentorship.

The FXB Center for Health and Human Rights Program on Immigrants and Unhoused Communities is led by Dr. Margaret Sullivan, FNP-BC, DrPH, FAAN, a Distinguished Fellow of the National Academies of Practice (NAP) in Nursing, and a Fellow of the American Academy of Nursing (FAAN). Trained as a family nurse practitioner, Dr. Sullivan brings two decades of experience serving immigrants and unhoused populations in primary care settings. She also co-advises the Harvard Students Human Rights Collaborative and conducts forensic medical evaluations for asylum with Harvard Medical School’s Asylum Clinic.

The Convention on the Rights of the Child (CRC), which was adopted by the United Nations General Assembly resolution 44/25 on November 20, 1989, serve as a crosscutting framework for our work. Articles of particular relevance to FXB’s Program on Immigrants and Unhoused Communities are:

Graphic with connected puzzle pieces showing which articles of the Convention on the Rights of the Child (CRC) apply to FXB's Program on Immigrants and Unhoused Communities.

Meet the faculty lead

Programmatic areas

APHA 2025

Dr. Margaret (Maggie) Sullivan, FNP-BC, DrPH, FAAN, presented at the 2025 APHA Annual Meeting in Washington, D.C. The session was titled “The Role of Community Engagement and Multidisciplinary Initiatives in Advancing Health of Immigrants, Refugees, and Forcibly Displaced Populations.” It covered the conditions that have led to a decrease in health-seeking behaviors and increase in mental health symptoms in immigrant communities. The negative impact of those unmet needs on adults, children and families has broad implications for maternal child health, nutrition, completion of routine screenings and vaccinations, educational attainment, self-efficacy, economic stability, and family cohesion.

Numerous barriers persist including stigma, disproportionately low numbers of bilingual/bicultural behavioral health providers, long wait times, limited insurance eligibility, and competing priorities (i.e. employment, housing, legal matters).

The session explored how new models for psychosocial interventions at the community level are needed to increase access, language concordance, culturally sensitive approaches, and targeted referrals to higher levels of care. Such models of care might varyingly incorporate language-based support groups, non-clinical and culturally relevant healing techniques (i.e. music and art), peer counseling, and participant eligibility regardless of primary care affiliation or not having a known behavioral health diagnosis. These examples prioritize skill-building, social cohesion, psychosocial wellness and accessibility outside of the traditional medical system.
Dr. Margaret Sullivan and colleagues posing with the APHA 2025 sign during the 2025 APHA Annual Meeting in Washington, D.C.
Dr. Margaret Sullivan and research collaborators posing with one of their session slides during the 2025 APHA Annual Meeting in Washington, D.C.

Featured publication

FXB Reflection

Testimony for Act Establishing Fairness for Agricultural Laborers

On July 15, 2025 the Director of the FXB Center Program on Immigrants and Unhoused Communities, Dr. Margaret (Maggie) Sullivan, testified before the Massachusetts Joint Committee on Revenue on behalf of An Act Establishing Fairness for Agricultural Laborers (S.2011). Her testimony, which was submitted in her personal capacity and in coordination with the Fairness for Farmworkers Coalition, is available below. This is the third time that the Act is being considered, Dr. Sullivan also provided testimony in 2023 and 2021. For more information about her prior testimony on a different bill related to immigrant health, please click here.
Cranberries floating on the water against the background of working farmers. Photo: Andrew Will / Shutterstock

Partnership for Community Mental Health and Immigrant Well-being

The Partnership for Community Mental Health and Immigrant Well-being aims to examine the mental healthcare landscape in Massachusetts and learn from immigrant-led, culturally rooted, and community-based approaches to mental health. Traditional medical models of mental healthcare do not meet the current needs of immigrants in the U.S. Many barriers persist, including stigma (among both providers and community members), insufficient bilingual/bicultural behavioral health workforce, long wait times for visits, unclear therapeutic goals, and lack of experience with mental health services. In many regions, community mental health services are absent, and hospital-level psychiatric care is sparse, fostering a belief that treatment is only relevant for the most acutely ill. 

Public health can and should have a key role in addressing mental health and wellbeing among marginalized communities in the U.S. While a public health approach to mental health is not new, it is underutilized. Schools of public health are important places for innovation, learning, collaboration and research, especially in a setting where determinants of mental health are intertwined with structural factors limiting access to health insurance, employment and housing. Development of public health approaches tailored to immigrant communities are a way forward to foster community mental health. 

 A public health approach to mental healthcare requires us to: 
• Address social determinants of health and wellbeing; recognizing individuals are embedded in their current socio-economic contexts and carry the cumulative effects of trauma and harm 
• Employ a systems approach to understanding and addressing issues; acknowledging the complexity and interconnectedness of systems (health, education, housing, labor) and that solutions are going to surface through iterations of action and continuous learning.
• Consider alternative models of program and service delivery, elevating the innovations already taking place within communities and utilizing collective and community-centered approaches to care.
• Commit to health equity, prioritizing marginalized and underserved populations.


With generous support from the Hughes Holden Foundation, the Partnerships for Community Mental Health and Immigrant Well-being initiative is cohosted at the FXB Center for Health and Human Rights and the Office of Educational Programs, Field Education and Practice at Harvard T.H. Chan School of Public Health. 

Programmatic areas


Meet the team


Select events

Thursday, October 30, 2025 | 1:00 pm – 3:00 pm ET | Main talk in Kresge 200, Q&A in Jonathan M. Mann Conference Room (FXB Building, 7th Floor, 651 Huntington Ave, Boston, MA). Harvard ID required.

Innovations in immigrant mental health flier. Margaret (Maggie) Sullivan, Rachel Plummer, Jake Savage.

The Partnership for Community Mental Health and Immigrant Well-being hosted colleagues from the Cambridge Economic Opportunity Committee and the Somerville Public Library to learn about innovative ways in which community-based programs and services are addressing the mental health and wellbeing of immigrants. The Partnerships for Community Mental Health and Immigrant Well-being initiative is cohosted by the FXB Center for Health and Human Rights and the Office of Field Education and Practice. This project aims to examine the mental healthcare landscape in Massachusetts and learn from immigrant-led, culturally rooted, community-based approaches to mental health.

Tuesday, April 22, 2025 | 1:00 pm – 2:00 pm ET | Zoom and Jonathan M. Mann Conference Room (FXB Building, 7th Floor, 651 Huntington Ave, Boston, MA). Harvard ID required.

Flier: At the intersection of public and immigrant health: Upholding safety, access, and rights. Zoom and Jonathan M. Mann Conference Room (FXB Building). Tuesday, April 22, 2025, 1-2pm EDT. Speaker remarks are based on their own scholarship and experience. As such, they speak for themselves, not for Harvard University.

During this intimate, in-person conversation, Director of the FXB Center Program on Immigrants and Unhoused Communities, Margaret (Maggie) Sullivan, FNP-BC, DrPH, FAAN discussed with invited guests Nahiris M. Bahamón, MD, FAAP, Luca Koritsanszky, CNM, WHNP-BC, MPH, and Clara Long, JD, MSc, MA. Given their work with community organizations, they each brought a complementary perspective to the issue of safeguarding access to healthcare, protection of human rights, and the safety of community members in precarious situations.


Thursday, March 6, 2025 | Main talk from 1:00pm-2:00pm EST at Harvard T.H. Chan School of Public Health |
The conversation continued at FXB’s Jonathan M. Mann Conference Room

Flier: Partnerships for Community Mental Health and Immigrant Well-being presents: Innovations in immigrant mental health Join us for an in-person conversation with colleagues from Boston Medical Center's Immigrant and Refugee Health Center to learn about programs and services designed for and with immigrant women. Following the main talk, join us at the FXB Center’s Jonathan M. Mann Conference Room at 2:00pm EST to continue the exchange of ideas. Thursday, March 6, 2025. 1-2pm EST. hsph.me/march 2025.

The Partnership for Community Mental Health and Immigrant Well-being hosted a conversation with colleagues from Boston Medical Center’s Immigrant and Refugee Health Center to learn about programs and services designed for and with immigrant women.


Monday, October 28, 2024 | 1:00pm-2:00pm ET at Harvard T.H. Chan School of Public Health |
Q&A session with Jessica Santos and Danielle Chun from 2:00-3:00pm ET at FXB ’s Jonathan M. Mann Conference Room

Date: Monday, October 28, 2024 Time and Location: Main talk from 1:00pm-2:00pm ET at Harvard T.H. Chan School of Public Health, Kresge G2 Q&A session with Jessica Santos and Danielle Chun from 2:00-3:00pm ET FXB Center's Jonathan M. Mann Conference Room Join Partnerships for Community Mental Health and Immigrant Well-being for an important conversation on reshaping the narrative around immigrants. Discover how immigrant families and communities in Boston are breaking the stigma around mental health, promoting well-being, and enhancing wellness.

The Partnership for Community Mental Health and Immigrant Well-being organized an important conversation on reshaping the narrative around immigrants aiming to show how immigrant families and communities in Boston are breaking the stigma around mental health, promoting well-being, and enhancing wellness.


Partnership for Community Mental Health and Immigrant Well-being Recent Publications

On the passage of US legislation cutting Medicaid: a missive from the “safety net”, The Lancet Regional Health – Americas, July 25, Margaret M. Sullivan (Author)

Immigration-Informed Pregnancy Care: A Call to Action, BJOG: An International Journal of Obstetrics and Gynaecology, April 21, Margaret Sullivan (Co-Author)

Posture, proximity, and positionality: The power of community engaged service-learning in public health leadership educationFrontiers in Public Health, June 12, Jocelyn Chu (Co-Author)

Approaching pediatric mental health screening and care in immigration detentionThe Lancet Regional Health – Americas, March 3, Dennis Kunichoff, Margaret M. Sullivan, Vasileia Digidiki (Co-Authors)