Our Senior Leadership Team is responsible for the day-to-day guidance of Public Health Solutions (PHS). They are also highly committed to inspire PHS’ passionate and talented staff to learn more, do more, and become more.

Lisa David

President and CEO


Lisa David is the President and CEO of PHS. She leads the organization to support vulnerable families in achieving optimal health and building pathways to reach their potential. Under Lisa’s guidance, PHS improves health outcomes and helps underserved families thrive by providing services within communities that need them most, serving as a critical link in public-private partnerships with government agencies to support over 200 community-based organizations across the city, and conducting independent research to evaluate program impact.

Lisa has over 30 years of experience in the public health and healthcare sectors. Prior to joining PHS, she held positions as the Interim CEO of Medicines360, the EVP and COO of Planned Parenthood Federation of America, and the Vice Chair for Administration of the Department of Obstetrics and Gynecology at the Columbia School of Physicians and Surgeons. Lisa currently serves on the Health and Mental Health Advisory Committee for the New York City Department of Health and Mental Hygiene, the Policy Committee of the United Hospital Fund, the Priority and Strategy Council of the Human Services Council, and the New York City Mayor’s Public Health Advisory Council. She also serves on the board of directors of Medicines360, the board of trustees of the Women’s Health Activist Movement Global (WHAMglobal), and the board of National Network of Public Health Institutes (NNPHI).

Christine Nollen

Chief Strategy Officer and Vice President of CAMS


Christine Nollen, MPA, MPH, oversees the strategic operations as well as the Contracting and Management Services (CAMS) Department. She joined PHS in 2016. Most recently Christine was the Administrative Director of the Department of Medicine for Mount Sinai Beth Israel, where her role was to restructure and revitalize the department subsequent to a merger. A graduate of Georgetown and Columbia Universities, she has spent her 20-year public health career working in the nonprofit and hospital sectors, focused on access to care and quality of care for marginalized populations. She served in a variety of operational leadership roles for the largest HIV Center in New York State, at St. Luke’s Roosevelt Hospital, now part of the Institute for Advanced Medicine at Mt. Sinai. She also worked at Planned Parenthood Federation of America on a national STI awareness-raising campaign, and has worked internationally consulting on the development of programs in Kenya and Eastern Europe.

Jeanette Moy

Chief Operating Officer


Jeanette M. Moy serves as the Chief Operating Officer and leads PHS’ business operations, helping to ensure that its operational goals are prioritized, and its strategic initiative investments are financially sound and affordable.

Previously, Jeanette served as COO at the Office of the New York Attorney General, overseeing its business operations with a $225 million budget and 1,800 employees across 33 locations, and enterprise-wide modernization program. Jeanette served as the first Chief Strategy Officer at the Brooklyn Public Library, driving its mission-critical strategic initiatives to deliver innovative services, generate revenue and improve operations. She served as Deputy Chief of Staff and Senior Policy Advisor in the NYC Office of the Mayor, focused on customer service strategies, technology, and innovation. Prior to her time in public service, she worked at management consulting firm Booz Allen Hamilton and health insurance company Anthem.

Jeanette received her BA in Political Science and MS in Management from the University of Rochester.

Kathy Fitzpatrick

Chief Financial Officer


Kathy Fitzpatrick assumed the role of Chief Financial Officer for PHS in July 2019. Kathy joined PHS 35 years ago, and quickly accumulated more responsibilities. She eventually took full charge of all fiscal functions as Corporate Controller during years of great expansion for PHS. Kathy is responsible for establishing many of the processes and procedures the organization follows. As such, she is the ‘go to’ source for questions, and with her institutional memory, she is an unparalleled resource. She knows just about everything about PHS, and always helps us all get a handle on a new project or initiative. She will continue to provide guidance and direction on all of our most difficult accounting issues in her new role.

She has been an integral part of our organization for those 35 years, helping to steward PHS’ resources through rapid growth and change.

Krista Lepper

Vice President of Legal Affairs and General Counsel


Krista Lepper first came to PHS as a Post-Graduate Legal Fellow, straight from Brooklyn Law School in 2009. After working through a variety of legal roles at PHS, Krista was promoted to General Counsel and Vice President of Legal Affairs. In this new role, she provides counsel to the Senior Leadership Team, Board, and staff; addresses nonprofit governance and ethical issues; oversees PHS’ contracting and compliance work; and engages in and supports employee relations. Over the past ten years at PHS, Krista has completely revamped PHS’ HIPAA program, engaged with numerous outside counsel on myriad contracting and other transactional issues and, most importantly, gotten to know her PHS colleagues. Krista has always had an interest in public health, working at Kaiser Permanent’s Division of Research prior to attending law school. Access to healthcare and health equity are two issues she and PHS are committed to fighting for.

Zachariah “Zach” Hennessey

Vice President of Neighborhood Health


Zach Hennessey joined PHS in 2017 as Vice President of Neighborhood Health to oversee PHS’ direct service program areas — including program development, delivery and evaluation, budget setting, knowledge management, and all internal and external relationship management. Zach comes to PHS with over a decade of experience in developing, executing, and evaluating health and human services programs in collaboration with local communities. Prior to Public Health Solutions, he served as Assistant Vice President for Community and Population Health at Wyckoff Heights Medical Center and co-directed the Special Projects Division of the Spencer Cox Center for Health at St. Luke’s-Roosevelt Hospital Center, New York’s largest Designated AIDS Center. Zach was also the Director of Development and Evaluation at ECQ Group, a small nonprofit public health consulting firm, where he developed and evaluated health and human services programs for a broad range of nonprofits.

Lisa Jakobsberg

Vice President of Development and Marketing


Lisa Jakobsberg joined PHS in 2016. She serves as chief strategist in building the direction for fundraising, public relations, marketing, and brand positioning for PHS. She oversees all fundraising, including individual giving and foundation grants, to expand new and existing programs that focus resources to where they are most needed in managing chronic and merging public health issues. Lisa previously served as the Executive Vice President of Development and Corporate Relations at the National MS Society and led re-branding, business partnerships, and events at the Food Bank For New York City. Lisa worked in public relations prior to her career in nonprofit marketing and fundraising. She led multi-year communication campaigns that led to public policy shifts among national health organizations, including the American Heart Association and American Academy of Pediatrics.

Cara Walker

Chief Human Resources Officer


Cara Walker joined PHS in January 2019 as the Director of Human Resources and Organizational Development and was promoted to Chief Human Resources Officer in 2020. Since joining PHS, Cara has provided strategic guidance and leadership for all aspects of the human resources function and established a vision and direction for the full complement of core human capital programs, policies, and services. Cara came to PHS as an experienced HR generalist, having held positions with both for-profit and not-for-profit organizations. Her professional expertise includes organizational development, diversity and inclusion, employee and labor relations, succession planning, coaching, performance management, training, managing global teams, and workshop facilitation. Cara most recently served as the Director of Human Resources at the Philadelphia Convention and Visitors Bureau. Cara holds a Master of Public Policy and Management, Human Resources and Labor Relations from the University of Pittsburgh.

Emily Morgan

Chief of Staff


Emily is Chief of Staff to the President and CEO of Public Health Solutions. She joined Public Health Solutions in 2016. In this capacity, she oversees the daily activities of the Office of the CEO and helps ensure alignment of key strategic goals and projects. She previously served in similar capacities at Planned Parenthood Federation of America as Managing Director in both the Office of the President and the Office of the Chief Operating Officer, in the sports world for the founders of World TeamTennis, and for a number of senior executives at JPMorgan Chase. In between these roles, Emily was acting Executive Director of Dixon Place, an experimental Off-Off-Broadway theater.