Leigh Ann Haley

Leigh Ann Haley, MPP, PMP, is a Project Director/Senior Research Analyst for the Health Economics and Evaluation Research (HEER) Program at the UCLA Center for Health Policy Research (CHPR). She is currently managing multiple projects, including an evaluation of CalAIM’s PATH initiative for the California Department of Health Care Services, an evaluation of Health Resources and Services Administration’s (HRSA) Health Center Program, and an evaluation of Los Angeles County’s Parks After Dark program.

Her past projects with the HEER program include evaluations of Whole Person Care, Health Homes Programs, and Housing for a Healthy California, all of which are programs coordinating care for high utilizing and high-cost Medi-Cal enrollees. Her primary area of focus for these evaluations were qualitative analysis of survey and interview data.

Prior to joining UCLA CHPR, Haley was an evaluation assistant at the University of Southern California (USC) for a CDC REACH Demonstration Project, which promoted health equity through community-based interventions to reduce hypertension and obesity for racial and ethnic minority residents in South Los Angeles.

Haley completed a master's degree in public policy at the USC Sol Price School of Public Policy, received her bachelor's degree in economics from the University of Virginia, and is a certified Project Management Professional (PMP). Her master's practicum project worked with the USC Schaeffer Center for Health Policy and Economics to explore differential prescription drug pricing for uninsured patients in Los Angeles County.

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cover of Parks After Dark evaluation brief with lifeguard wearing a Parks After Dark shirt and iPad showing data
Policy Brief

Policy Brief

Parks After Dark Evaluation Brief, November 2025

In this brief, the UCLA Center for Health Policy Research summarizes information from their evaluation of the 2024 Parks After Dark (PAD) program in Los Angeles County, including innovative “spotlights” that made PAD unique. PAD was a county initiative led by the Department of Parks and Recreation in partnership with other county departments and community-based organizations. In its 14th year, PAD programming — including sports, entertainment, activities, and more — was offered for eight weeks on Thursday, Friday, and Saturday evenings at 34 parks between June and August 2024.

Findings: Evaluators found that PAD continued to make significant progress in achieving its goals by providing quality recreational programming in a safe and family-friendly environment. PAD provided programming for participants of all ages with a more recent focus on Youth and Seniors.

While ensuring participants’ sense of safety at parks while attending PAD events, PAD also encouraged meaningful collaboration between participating county departments and community-based organizations. PAD contributed to participant’s feelings of well-being, family togetherness, social cohesion, and involved a diverse range of participants in community-driven programming in a meaningful way. PAD may have also helped to reduce the burden of disease for those that engaged in sports and exercise activities.
 

Health Resources and Services Administration (HRSA)-Funded Health Centers Reduce Health Care Expenditures of California Medicaid Managed Care Beneficiaries with Complex Needs
Journal Article

Journal Article

Health Resources and Services Administration (HRSA)-Funded Health Centers Reduce Health Care Expenditures of California Medicaid Managed Care Beneficiaries with Complex Needs

The authors aimed to investigate potential differences between health care use and related payments for patients with complex needs and high costs in Health Resources and Services Administration-funded health centers (HC) and with other safety net primary care providers. They used data from the California Health Homes Program that was designed to improve health outcomes and reduce expenditures of such Medicaid managed care beneficiaries. The authors used 2018 data prior to program implementation and conducted propensity score-matched regressions and then estimated predicted rates of use across seven service categories and payment values for each category and for overall payments.

Findings: The authors found that 29% of the sample were HC patients and had lower estimated average total payment values ($21,220) than group provider patients ($23,180). HC patients also had lower values for hospitalizations and long-term facility stays and higher values for primary and mental health services than all other providers. Payment differences were generally consistent with differences in predicted rates of use. These findings suggest that HC approaches to managing patient care access and integrated mental health services may explain these differences in use and payment patterns.
 

Collaboration Strategies for Bridging Health, Behavioral Health, and Social Services in California's Medi-Cal Whole Person Care Pilot Program
Journal Article

Journal Article

Collaboration Strategies for Bridging Health, Behavioral Health, and Social Services in California's Medi-Cal Whole Person Care Pilot Program

Researchers identify collaboration strategies used to integrate health, behavioral health, and social services for Medicaid members in California's Medi-Cal Whole Person Care Pilot program (WPC). Data were collected as part of the statewide evaluation of WPC. Authors analyzed qualitative data to examine strategies used by pilots to integrate care, network data to identify pilots that improved cross-sector collaboration (i.e., strengthened density or multiplexity of cross-sector ties) following WPC implementation, and comparative case analysis to identify strategies that differentiated pilots that improved collaboration from those that did not.

Findings: Pilots used multiple strategies to facilitate the integration of care. Network analyses identified 10 pilots that significantly improved either density or multiplexity of cross-sector ties, and one pilot with high cross-sector collaboration prior to WPC. Compared to pilots that did not improve cross-sector collaboration, these pilots meaningfully engaged partners in program design and implementation, used braided funds, and leveraged WPC to support broader systems change. These pilots also reported fewer challenges in developing and managing contractual relationships and ensuring meaningful use of data-sharing infrastructure by frontline staff responsible for care coordination.

Data sharing is necessary but not sufficient for systems alignment. Collaboration strategies focused on addressing financial barriers to integration and strengthening normative and interpersonal integration are also needed.

parks after dark evaluation brief cover with little girls wearing PAD shirts and showing medals and infographic in the background
Policy Brief

Policy Brief

Parks After Dark Evaluation Brief, May 2024

In this infographic brief, the UCLA Center for Health Policy Research summarizes information from their evaluation of the 2022 Parks After Dark (PAD) program in Los Angeles County. PAD is a county initiative led by the Department of Parks and Recreation in partnership with other county departments and community-based organizations. PAD programming — including sports, entertainment, activities, and more — was offered for eight weeks on Thursday, Friday, and Saturday evenings at 34 parks between June and August 2023.

Findings: Evaluators found that PAD has made significant progress in achieving its intended goals through the provision of quality recreational programming in a safe and family-friendly environment. Besides ensuring participant’s sense of safety at parks while attending PAD programming, evidence indicates that PAD may have reduced crime in PAD parks and their surrounding areas since its inception in 2010. In addition, PAD encouraged meaningful collaboration between participating county departments and community-based organizations; contributed to participant’s feelings of well-being, family togetherness, and social cohesion; and involved a diverse range of participants in community-driven programming in a meaningful way. PAD may also have reduced the burden of disease for those that engaged in exercise opportunities.

cover of Parks After Dark evaluation brief with lifeguard wearing a Parks After Dark shirt and iPad showing data
Policy Brief

Policy Brief

Parks After Dark Evaluation Brief, November 2025

In this brief, the UCLA Center for Health Policy Research summarizes information from their evaluation of the 2024 Parks After Dark (PAD) program in Los Angeles County, including innovative “spotlights” that made PAD unique. PAD was a county initiative led by the Department of Parks and Recreation in partnership with other county departments and community-based organizations. In its 14th year, PAD programming — including sports, entertainment, activities, and more — was offered for eight weeks on Thursday, Friday, and Saturday evenings at 34 parks between June and August 2024.

Findings: Evaluators found that PAD continued to make significant progress in achieving its goals by providing quality recreational programming in a safe and family-friendly environment. PAD provided programming for participants of all ages with a more recent focus on Youth and Seniors.

While ensuring participants’ sense of safety at parks while attending PAD events, PAD also encouraged meaningful collaboration between participating county departments and community-based organizations. PAD contributed to participant’s feelings of well-being, family togetherness, social cohesion, and involved a diverse range of participants in community-driven programming in a meaningful way. PAD may have also helped to reduce the burden of disease for those that engaged in sports and exercise activities.
 

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Health Resources and Services Administration (HRSA)-Funded Health Centers Reduce Health Care Expenditures of California Medicaid Managed Care Beneficiaries with Complex Needs
Journal Article

Journal Article

Health Resources and Services Administration (HRSA)-Funded Health Centers Reduce Health Care Expenditures of California Medicaid Managed Care Beneficiaries with Complex Needs

The authors aimed to investigate potential differences between health care use and related payments for patients with complex needs and high costs in Health Resources and Services Administration-funded health centers (HC) and with other safety net primary care providers. They used data from the California Health Homes Program that was designed to improve health outcomes and reduce expenditures of such Medicaid managed care beneficiaries. The authors used 2018 data prior to program implementation and conducted propensity score-matched regressions and then estimated predicted rates of use across seven service categories and payment values for each category and for overall payments.

Findings: The authors found that 29% of the sample were HC patients and had lower estimated average total payment values ($21,220) than group provider patients ($23,180). HC patients also had lower values for hospitalizations and long-term facility stays and higher values for primary and mental health services than all other providers. Payment differences were generally consistent with differences in predicted rates of use. These findings suggest that HC approaches to managing patient care access and integrated mental health services may explain these differences in use and payment patterns.
 

Collaboration Strategies for Bridging Health, Behavioral Health, and Social Services in California's Medi-Cal Whole Person Care Pilot Program
Journal Article

Journal Article

Collaboration Strategies for Bridging Health, Behavioral Health, and Social Services in California's Medi-Cal Whole Person Care Pilot Program

Researchers identify collaboration strategies used to integrate health, behavioral health, and social services for Medicaid members in California's Medi-Cal Whole Person Care Pilot program (WPC). Data were collected as part of the statewide evaluation of WPC. Authors analyzed qualitative data to examine strategies used by pilots to integrate care, network data to identify pilots that improved cross-sector collaboration (i.e., strengthened density or multiplexity of cross-sector ties) following WPC implementation, and comparative case analysis to identify strategies that differentiated pilots that improved collaboration from those that did not.

Findings: Pilots used multiple strategies to facilitate the integration of care. Network analyses identified 10 pilots that significantly improved either density or multiplexity of cross-sector ties, and one pilot with high cross-sector collaboration prior to WPC. Compared to pilots that did not improve cross-sector collaboration, these pilots meaningfully engaged partners in program design and implementation, used braided funds, and leveraged WPC to support broader systems change. These pilots also reported fewer challenges in developing and managing contractual relationships and ensuring meaningful use of data-sharing infrastructure by frontline staff responsible for care coordination.

Data sharing is necessary but not sufficient for systems alignment. Collaboration strategies focused on addressing financial barriers to integration and strengthening normative and interpersonal integration are also needed.