The principal office of the National Health Care for the Homeless Council is in Nashville, Tennessee. Staff and contractors pursue our ambitious agenda in research, training, education, organizing and advocacy from offices in various locations. Staff members include:

John Lozier, MSSW

Executive Director

John Lozier

John N. Lozier has been executive director of the National Health Care for the Homeless Council since its founding in January 1990 and oversees all aspects of the Council’s activity in advocacy, training, technical assistance, research, peer support, organizing, and fund development.

Prior to his employment with the National HCH Council, Lozier was director of services for the homeless for … More →

Lauryn Berner, MSW, MPH

Project Manager


Lauryn Berner leads a collaborative effort with the Corporation with Supportive Housing aimed at increasing the knowledge base, skill set, and resources of Health Center staff engaged in supportive housing initiatives. As part of this work, she reaches out to health centers to identify promising practices and areas of need and collaborates on written materials, webinars, business development, and technical More →

Polly Bullock, BS

Executive Manager


Polly provides administrative support and assistance to Council staff and members.  She is responsible for the performance of the day-to-day office operations and related responsibilities.… More →

Lily Catalano, BA

Project Manager

Lily Catalano

Lily Catalano supports technical assistance and training while assisting with the coordination of the National Health Care for the Homeless Conference. Lily is also the accreditation liaison to the Vanderbilt University School of Medicine and serves as an additional editor for National HCH Council communications.… More →

Katherine Cavanaugh, MSW

Consumer Advocate


Katherine staffs the National Consumer Advisory Board (NCAB), helps to coordinate consumer initiatives, and further develops Council relationships with local consumer advisory boards (CABs).More →

Claudia Davidson, MPH

Research Associate


Claudia Davidson works to support the HCH field by developing and disseminating knowledge, increasing visibility of HCH-related research through publications and external collaborations, and improving its capacity to engage in research and apply research findings.… More →

Barbara DiPietro, PhD

Senior Director of Policy

barbara 3

Barbara DiPietro directs the policy and advocacy activities for the National Health Care for the Homeless Council, conducts policy analysis, coordinates the Council’s policy priorities with federal advocacy and governmental partners, and organizes staff assistance to the Policy Committee, Respite Care Providers Network, National Consumer Advisory Board, SSI Task Force, and the Permanent Supportive Housing Working Group.… More →

Julia Dobbins, MSW

Project Coordinator, CMS Innovation Grant

Julia Dobbins NHCHC

Julia Dobbins coordinates the CMS Innovation project, “Community Health Workers and HCH: A Partnership to Promote Primary Care.”  Throughout this three-year project, Julia will develop and facilitate trainings, meetings, technical assistance, and site visits for the participating health care for the homeless clinics.… More →

D. Michael Durham, MTS

Membership & Development Coordinator

Michael Durham

Michael works in collaboration with the Membership & Development Committee for the implementation of the annual development plan, and is the primary contact for all things related to Council membership and fundraising. He also staffs the Planning Committee and organizes the two annual meetings of the Governing Membership. Learn more about membership.… More →

Sabrina Edgington, MSSW

Director of Special Projects


Sabrina Edgington brings national experts together to guide our work related to medical respite care, permanent supportive housing, disability, emergency management, and the federal Medicaid program. Within these areas, she writes policy briefs and conducts analysis on emerging issues for the HCH community. Sabrina coordinates the Respite Care Providers’ Network and is the editor of its quarterly publication, Respite NewsMore →

Juli Hishida, MS

Project Manager


Juli develops informational and educational resources on various administrative and behavioral health topics relevant to homeless healthcare. She currently staffs the Council’s Administrators Committee.… More →

Darlene Jenkins, DrPH

Senior Director of Programs

Darlene Jenkins

Darlene oversees the work of the Education, Research, and Special Projects Teams.… More →

Molly Meinbresse, MPH

Director of Research


Molly coordinates the involvement of Health Care for the Homeless (HCH) projects in research activities to facilitate improvement of homeless health care practice and policy. Molly staffs the Research Coordinating Committee and is coordinator for HCH Practice-Based Research Network. Her most recent projects focus on chronic pain management, enabling services documentation, and smoking cessation. Molly also serves as the Program … More →

Krista Myatt, BA

Database Associate


Krista is responsible for providing administrative and clerical services in order to ensure effective and efficient operations for the Administrative Team and the Council staff.  More →

Marita Rice, MA

Senior Director of Administration


Marita is responsible for oversight of all the financial and administrative functions of the Council and staffs the Finance & Personnel Committee.… More →

Patrina Twilley, MSW

Director of Education


Patrina leads the Education Team, which oversees the Technical Assistance and Training program of the Council. She also develops and coordinates evaluations for all Council educational activities to ensure that the organization is meeting the needs of the Health Care for the Homeless community.… More →

Matt Warfield, MSW

Health Policy Organizer

After graduating in 2003 from Towson University with a degree in sociology, I dabbled in various organizing positions including brief stints with SEIU and ACORN. I was fortunate to be awarded an Open Society Institute fellowship for my work with the Baltimore Free Store, which allowed me to settle in Baltimore and work directly with low- to no-income populations throughout … More →