Dylan H. Roby

Dylan H. Roby, PhD, is an affiliate at the UCLA Center for Health Policy Research. He is also interim chair and associate professor of health, society, and behavior at the University of California, Irvine Program in Public Health. Roby collaborates with colleagues at UCLA on the California Simulation of Insurance Markets (CalSIM) microsimulation model, and is a member of UCLA's cost analysis team for the California Health Benefit Review Program. His primary academic appointment is in the UC Irvine Program in Public Health, where he conducts research on Medicaid, the health care safety net, and the Affordable Care Act's implications for insurance markets, system redesign and access to care. He teaches courses on health politics and policy in the BA, MPH, and PhD programs in public health.

Roby was the former director (2012-2014) of the Health Economics and Evaluation Research Program at the Center, where he helped developed the Center's capacity for analysis of Medicaid claims data, Medicaid waiver evaluation, and conducting confidential data analyses and surveys. He served as the associate director of the MPH Program from 2010-2012. Prior to becoming the director of Health Economics and Evaluation Research, he was a senior researcher at the Center from 2003 to 2011.

Before returning to UCLA, Roby worked for four years as a senior research associate at The George Washington University Center for Health Services Research and Policy. He worked on safety net issues, including data analysis and research on community health centers and public hospitals. During his time in Washington, DC, he also worked for the National Association of Community Health Centers, the National Governors' Association's Center for Best Practices, and the Progressive Policy Institute. Roby was also an instructor at The George Washington University Department of Health Policy. Prior to that, he was a research assistant at the UCLA Center for Health Policy Research.

Roby graduated from UCLA with a bachelor's degree in geography and a minor in public policy. He earned his doctoral degree in public policy from The George Washington University.

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Journal Article

Organizational Perspectives on the Public Charge Rule and Health Care Access for Latino Immigrants in California

In this qualitative study, authors aim to examine how mis- and disinformation about the Public Charge Ground of Inadmissibility final rule ("public charge rule") influences health care access for Latino immigrants in California. Between May 2024 and April 2025, primary data were collected from 32 interviews (38 participants) with healthcare and community-based organizational leaders serving Latino immigrants in California.

Findings: Participants identified the public charge rule as a significant barrier to health care access for Latino immigrants. The policy has discouraged many Latinos from accessing public benefits, particularly the state's Medicaid and Supplemental Nutrition Assistance Program. In addition, immigrants' trusted sources of information (e.g., family, friends, and attorneys) were often misinformed about the policy, which amplified confusion and fear. Organizations respond by providing accurate information and connecting individuals with reliable resources to clarify that using public benefits would not necessarily result in being classified as a public charge. However, most efforts focused on education rather than directly countering mis- and disinformation. 

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Screening Through Soft Spending Limits: Evidence from the Medicare Therapy Cap

Governments and firms often employ soft spending limits to restrict overspending while still allowing exceptions on a case-by-case basis. This paper studies a Medicare policy which capped per-patient physical therapy spending, with exceptions for patients with documented medical need.  

Findings: The cap reduced spending by 8% without harming patient health, with the targeting improvements driven by Medicare discretion in granting exceptions rather than improved provider screening. However, the documentation requirement also introduced horizontal inequity: conditional on need, lower-income and minority patients were more likely to be screened out, as they tended to see providers with poorer documentation practices. 

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Equity in Health Care Access, Utilization, and Experiences for Latino Children in California by Parental Citizenship and Household Language, 2021–2022

This study examines health care access, utilization, and experiences among Latino children in California by parental citizenship and household language analyzing merged data from the 2021–2022 California Health Interview Survey and the follow-up Latino Youth Health Study of the same years. Primary outcomes were parental reports of children's health care access, utilization, and experiences in the past year. The main predictors were variables stratified by parental citizenship status (both citizen parents versus one citizen and one noncitizen parent versus both noncitizen parents) and household language (English-only versus English and Spanish versus Spanish-only). Multivariable analyses adjusted for parental education, family income, parent-reported child's health status, child's age, and child's insurance.

Findings: Findings showed no significant differences in health care access across groups. However, children with both noncitizen parents and from Spanish-only households were more likely to have had well-child visits and general doctor visits than children with both citizen parents and in English-only households. Additionally, parents of children with both noncitizen parents were more likely to feel respected by doctors than those with both citizen parents. Conversely, compared to parents with both citizen parents, parents of children with one citizen and one noncitizen parent were less likely to report that doctors spent enough time with their children and less likely to express high satisfaction with their children's health care.

Patterns of health care access, utilization, and experiences among Latino children in immigrant families in California are improving, which are likely associated with recent inclusive health policies in the state.
 

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Journal Article

Does Early Life Adversity Limit Delivery of High-Quality Health Care Among Children?

Adverse childhood experiences (ACEs) have been associated with poor health and underuse of preventive health services. However, less is known about how ACEs are associated with quality of care that children receive, like care that involves shared decision-making. Using data from the 2021–2022 National Survey of Children's Health, authors analyzed the association between ACEs, both individual and cumulative, and (1) needing medical decisions made in the past 12 months and (2) three different measures of always receiving care that involved shared decision-making.

Findings: After accounting for confounders, the number of ACEs experienced and most individual ACE items were associated with higher odds of needing medical decisions made, and lower odds of receiving health care that involved providers always engaging in the three measures of shared decision-making. This study expands the research showing a deleterious impact of ACEs on utilization of health care by showing that ACEs are associated with lower quality health care. This can be particularly detrimental to children with a history of ACEs because they have a greater need for health care and are less likely to use many types of health care. Efforts to improve health care quality for all children will be of particular benefit to vulnerable groups, like those with a history of ACEs.
 

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Journal Article

Journal Article

Organizational Perspectives on the Public Charge Rule and Health Care Access for Latino Immigrants in California

In this qualitative study, authors aim to examine how mis- and disinformation about the Public Charge Ground of Inadmissibility final rule ("public charge rule") influences health care access for Latino immigrants in California. Between May 2024 and April 2025, primary data were collected from 32 interviews (38 participants) with healthcare and community-based organizational leaders serving Latino immigrants in California.

Findings: Participants identified the public charge rule as a significant barrier to health care access for Latino immigrants. The policy has discouraged many Latinos from accessing public benefits, particularly the state's Medicaid and Supplemental Nutrition Assistance Program. In addition, immigrants' trusted sources of information (e.g., family, friends, and attorneys) were often misinformed about the policy, which amplified confusion and fear. Organizations respond by providing accurate information and connecting individuals with reliable resources to clarify that using public benefits would not necessarily result in being classified as a public charge. However, most efforts focused on education rather than directly countering mis- and disinformation. 

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Publication Placeholder
Journal Article

Journal Article

Equity in Health Care Access, Utilization, and Experiences for Latino Children in California by Parental Citizenship and Household Language, 2021–2022

This study examines health care access, utilization, and experiences among Latino children in California by parental citizenship and household language analyzing merged data from the 2021–2022 California Health Interview Survey and the follow-up Latino Youth Health Study of the same years. Primary outcomes were parental reports of children's health care access, utilization, and experiences in the past year. The main predictors were variables stratified by parental citizenship status (both citizen parents versus one citizen and one noncitizen parent versus both noncitizen parents) and household language (English-only versus English and Spanish versus Spanish-only). Multivariable analyses adjusted for parental education, family income, parent-reported child's health status, child's age, and child's insurance.

Findings: Findings showed no significant differences in health care access across groups. However, children with both noncitizen parents and from Spanish-only households were more likely to have had well-child visits and general doctor visits than children with both citizen parents and in English-only households. Additionally, parents of children with both noncitizen parents were more likely to feel respected by doctors than those with both citizen parents. Conversely, compared to parents with both citizen parents, parents of children with one citizen and one noncitizen parent were less likely to report that doctors spent enough time with their children and less likely to express high satisfaction with their children's health care.

Patterns of health care access, utilization, and experiences among Latino children in immigrant families in California are improving, which are likely associated with recent inclusive health policies in the state.
 

Publication Placeholder
Journal Article

Journal Article

Does Early Life Adversity Limit Delivery of High-Quality Health Care Among Children?

Adverse childhood experiences (ACEs) have been associated with poor health and underuse of preventive health services. However, less is known about how ACEs are associated with quality of care that children receive, like care that involves shared decision-making. Using data from the 2021–2022 National Survey of Children's Health, authors analyzed the association between ACEs, both individual and cumulative, and (1) needing medical decisions made in the past 12 months and (2) three different measures of always receiving care that involved shared decision-making.

Findings: After accounting for confounders, the number of ACEs experienced and most individual ACE items were associated with higher odds of needing medical decisions made, and lower odds of receiving health care that involved providers always engaging in the three measures of shared decision-making. This study expands the research showing a deleterious impact of ACEs on utilization of health care by showing that ACEs are associated with lower quality health care. This can be particularly detrimental to children with a history of ACEs because they have a greater need for health care and are less likely to use many types of health care. Efforts to improve health care quality for all children will be of particular benefit to vulnerable groups, like those with a history of ACEs.
 

Center in the News

How UnitedHealthcare became the face of America’s health insurance frustrations

Dylan Roby, affiliate of the UCLA Center for Health Policy Research, provided expert commentary on why and how the nation's largest health insurer, UnitedHealth, has become subject to stinging criticism recently. “I think the company is certainly best in class when it comes to insurers, in terms of providing profits for shareholders,” said Roby. “But people on the consumer side probably say otherwise when it comes to their experience.” NBC News and nine NBC affiliates also published the story. News https://www.cnbc.com/2025/05/22/unitedhealth-news-backlash-stock-price.html

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Center in the News

Covered California Hits Record Enrollment, but Key Subsidies in Jeopardy

Dylan Roby, faculty associate at the UCLA Center for Health Policy Research, remains cautiously optimistic that federal health insurance subsidies will remain in place under the new presidential administration because enrollment in marketplace plans is especially high in Republican-controlled states that have not expanded Medicaid. News https://californiahealthline.org/news/article/covered-california-record-enrollment-aca-obamacare-subsidies-jeopardy/

Center in the News

California's Single Payer Healthcare Proposal: What to Know

According to Dylan Roby, PhD, an associate professor of health, society and behavior at the University of California Irvine Program in Public Health, the system would be built on a fee-for-service model, similar to Medicare.

Advocates have argued that the COVID-19 pandemic has shed light on gaps in care and the disparities based on race, ethnicity, income, and location.

A single-payer system would eliminate costly premiums, copays, and deductibles, which would help close gaps and expand access to care to all.

News https://www.healthline.com/health-news/californias-single-payer-healthcare-proposal-what-to-know#How-would-the-system-work?

In-Person

Redefining the Safety Net: The Changing Roles of Counties in Providing Health Care

In-Person

Primary Care Physician Supply Under the Patient Protection and Affordble Care Act

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