Key Takeaways
- California’s Department of Health Care Services released its H.R. 1 implementation plan on January 30, 2026, outlining how the state will operationalize the largest federal changes to Medicaid in the program’s sixty-year history.
- Approximately two million Medi-Cal members are at risk of losing coverage. The California Budget and Policy Center estimates the number could reach 3.4 million when all H.R. 1 provisions are accounted for, with the state losing up to $30 billion in federal funding annually.
- The most significant provisions for behavioral health providers are new 80-hour-per-month community engagement requirements (effective December 31, 2026), six-month eligibility redeterminations (also December 31, 2026), and narrowed immigrant eligibility (effective October 1, 2026).
- Children receiving ABA therapy are protected by the EPSDT mandate, which requires states to provide medically necessary services to Medicaid beneficiaries under 21 regardless of H.R. 1’s other changes. But the accelerated redetermination timeline will create more frequent coverage lapse opportunities for families.
- California plans to use income-based verification for work requirements rather than hour tracking, leveraging the state’s higher minimum wage ($16.90 per hour) to deem compliant any member earning at least $580 monthly, potentially reducing coverage losses compared to states using strict hour counting.
- The “medically frail” exemption from work requirements covers individuals with substance use disorders and disabling mental disorders, but verifying this status adds administrative burden, and the exact definition of “disabling” mental disorder awaits further federal guidance.
- Evidence from Arkansas, the only state to fully implement work requirements before courts intervened, found that more than 18,000 people lost coverage in seven months, with no documented increase in employment and significant documented harms: half reported serious problems paying medical debt, 56 percent delayed care due to cost, and 64 percent delayed taking prescribed medications.
The California Department of Health Care Services (DHCS) has released its implementation plan for navigating the largest federal changes to Medicaid in the program’s sixty-year history. The plan, announced January 30, 2026, outlines how the state will implement new eligibility requirements mandated by H.R. 1, the budget reconciliation bill signed into law on July 4, 2025. The changes begin as early as October 2026 and are expected to put approximately two million Medi-Cal members at risk of losing coverage. For behavioral health providers, the plan arrives alongside a broader national pattern of Medicaid restructuring that is reshaping how providers operate across nearly every state and a regulatory environment that has already produced significant disruption in other high-cost Medicaid service categories.
“California is committed to implementing these federally required changes in a way that protects coverage and supports our members,” said DHCS Director Michelle Baass. “Our goal is to make this transition as smooth as possible by providing clear information, reducing administrative burdens, and working closely with members, counties, health plans, and community partners.”
The implementation plan arrives as states grapple with how to operationalize the sweeping federal requirements. The Congressional Budget Office estimates that H.R. 1 will result in 11.8 million people losing Medicaid coverage nationwide over the next decade, with 4.8 million of those losses attributable specifically to the new work requirements. California, with approximately 14.5 million Medi-Cal enrollees representing more than one-third of the state’s population, faces among the largest implementation challenges of any state.
What H.R. 1 Requires: Community Engagement, Six-Month Redeterminations, and Immigrant Eligibility
The federal law imposes several major changes to Medicaid eligibility that California must now implement. The most significant provisions affecting the state’s behavioral health providers include new community engagement requirements, accelerated eligibility redeterminations, and narrowed immigrant eligibility.
Beginning December 31, 2026, adults ages 19 to 64 who enrolled through the Affordable Care Act’s Medicaid expansion must complete 80 hours per month of “community engagement” to maintain coverage. Qualifying activities include employment, job training, educational enrollment, or community service. Exemptions apply to parents or caretakers of children under 14, individuals with disabilities, pregnant women, and those deemed “medically frail,” a category that includes people with substance use disorders and disabling mental health conditions. The work requirements provision represents the single largest component of H.R. 1’s Medicaid cuts, reducing federal funding by $325.8 billion over ten years. The six-month redetermination cycle is separately effective December 31, 2026, and will substantially increase administrative workload for county eligibility workers while creating more frequent touchpoints where coverage can be lost due to paperwork errors or missed deadlines.
Additionally, starting October 1, 2026, the definition of qualified immigrants eligible for federally funded Medicaid will narrow significantly. Legal permanent residents with green cards will remain eligible, but refugees, asylees, and other humanitarian categories will lose federal Medicaid funding. California has historically extended state-funded coverage to immigrants regardless of status, but the federal changes create new complexity in how that coverage is financed and administered.
California’s Medi-Cal H.R. 1 Implementation Strategy: Five Guiding Principles
DHCS has outlined five guiding principles for implementing the federal requirements. The department elaborated on these approaches in a January 13, 2026 CalHHS webinar on H.R. 1 impacts, where Director Baass provided updates on the state’s Rural Health Transformation Program award and implementation timeline.
The first principle emphasizes automation: using existing data sources to verify eligibility and reduce paperwork burdens on members. California’s higher minimum wage ($16.90 per hour as of January 1, 2026, compared to the federal hourly wage of $7.25) creates an opportunity here. The state can use an income-based approach to verify work requirements rather than tracking hours directly. Under this approach, members who earn at least $580 monthly (the federal minimum wage multiplied by 80 hours) would be deemed compliant. Because California workers typically earn more per hour, many may meet this threshold while working fewer than 80 hours, potentially reducing coverage losses compared to states using strict hour tracking.
The second principle focuses on communication. DHCS has committed to providing plain-language, culturally appropriate information in all required languages. The department will use multiple channels (including mail, text messages, and outbound phone calls) to ensure members understand the changes before they take effect.
The third principle addresses the six-month redetermination process. Rather than simply doubling the administrative burden, DHCS aims to streamline the renewal process to help members maintain continuous coverage. The fourth principle provides education and training to counties and Coverage Ambassadors, the community partners who help members navigate the Medi-Cal system. Finally, DHCS emphasizes early and transparent communication, planning to begin outreach well before the October 2026 effective dates.
How Many Medi-Cal Members Could Lose Coverage Under H.R. 1
The two million Medi-Cal members DHCS identifies as at risk are primarily adults who gained coverage through the ACA’s Medicaid expansion. This population includes many individuals receiving behavioral health services. Medicaid is the single largest payer of behavioral health services in the United States, funding mental health and substance use treatment for millions of Americans.
However, some analyses suggest the actual coverage losses could be substantially higher. The California Budget and Policy Center has estimated that up to 3.4 million state residents could lose coverage when accounting for all H.R. 1 provisions, with the state losing up to $30 billion in federal funding annually. The Legislative Analyst’s Office projects that the community engagement requirements and six-month redeterminations together could reduce the childless adult caseload by approximately 40 percent (a reduction of 1.6 million people) by 2029 to 2030.
The “medically frail” exemption from work requirements provides some protection for behavioral health populations. Under the law, individuals with substance use disorders or “disabling” mental disorders are exempt from community engagement requirements. However, verifying this status adds another administrative layer, and the exact definition of “disabling” mental disorder awaits further federal guidance.
The stakes are particularly high given evidence from Arkansas, the only state to fully implement Medicaid work requirements before courts intervened. More than 18,000 people lost coverage in just seven months, representing about one quarter of those subject to the requirement. Research found no increase in employment but documented significant harms: half of those who lost coverage reported serious problems paying off medical debt, 56 percent delayed care due to cost, and 64 percent delayed taking prescribed medications.
What H.R. 1’s Medi-Cal Changes Mean for ABA Providers and Autism Services
For providers serving children with autism through Medi-Cal, several factors provide some insulation from the most severe impacts. Children receiving ABA therapy are protected by the Early and Periodic Screening, Diagnostic, and Treatment (EPSDT) benefit, which requires states to provide medically necessary services to Medicaid beneficiaries under 21. This federal mandate remains in place regardless of H.R. 1’s other changes. The exemptions for individuals with developmental disabilities should protect most ABA clients from work requirement provisions. Parents caring for children under 14 are also exempt. The contrast with states that have moved more aggressively is instructive: Indiana’s recent Medicaid ABA overhaul (which introduced rate cuts, lifetime service caps, and the elimination of telehealth for key codes) illustrates how quickly state-level Medicaid restructuring can reshape provider economics even when federal EPSDT protections remain nominally intact.
But the accelerated redetermination timeline will affect families across the autism services population, creating more frequent opportunities for coverage lapses due to paperwork issues or missed deadlines. California’s developmental disability services rely heavily on federal Medicaid support, receiving approximately $7 to $8 billion annually. The state has one of the highest autism prevalence rates in the country, with 4.5 percent of eight-year-old children identified with autism spectrum disorder compared to the 2.8 percent national average. Any disruptions to Medi-Cal coverage could have outsized effects on the autism services ecosystem.
Providers should also monitor the immigrant eligibility changes closely. Families with mixed immigration status may see some members lose coverage while children remain eligible, potentially complicating care coordination and family-based treatment approaches.
What Behavioral Health Providers Should Do Before October 2026
Several practical considerations emerge from the implementation timeline. First, the October 2026 start date for immigrant eligibility changes precedes the December 2026 effective date for work requirements and six-month redeterminations. Providers should anticipate that coverage disruptions may begin affecting some patients in the fall of 2026, with broader impacts rolling out through early 2027. This timeline compression mirrors the pattern federal auditors have identified in other high-growth Medicaid behavioral health categories, where policy changes outpace providers’ ability to adapt documentation and administrative systems.
Second, the state’s approach to work requirement verification will significantly influence how many members lose coverage. California’s decision to use income-based verification rather than hour tracking could reduce coverage losses, but the operational details matter enormously. Providers should monitor DHCS guidance as these systems are developed.
Third, county eligibility offices will face dramatically increased workload as six-month redeterminations take effect. Processing delays and backlogs could result in coverage gaps even for members who remain eligible. Providers may need to work more closely with county offices and Coverage Ambassadors to help patients maintain continuous coverage.
Finally, the exemption verification process for behavioral health populations will require attention. Ensuring that clients with qualifying conditions are properly documented as medically frail could prevent unnecessary coverage losses. The broader policy question of how behavioral health providers position themselves as Medicaid restructuring accelerates connects directly to value-based care frameworks that tie reimbursement to outcomes rather than volume: organizations that can demonstrate measurable clinical results are better positioned to weather reimbursement contractions than those that cannot. Recent investment activity in value-based behavioral health infrastructure suggests that some of the capital entering the sector is explicitly betting on that positioning.
DHCS hosted an All-Comer Webinar on February 5 to review the implementation plan and answer questions. The full implementation plan is available on the DHCS website. As federal guidance continues to emerge and state systems are developed, providers should expect additional details throughout 2026.
Frequently Asked Questions:
What is H.R. 1 and how does it affect Medicaid?
H.R. 1, formally the “One Big Beautiful Bill Act,” is the federal budget reconciliation legislation signed into law on July 4, 2025. It represents the largest set of changes to Medicaid in the program’s sixty-year history. Key provisions include: new community engagement (work) requirements of 80 hours per month for most adult expansion enrollees; six-month eligibility redeterminations for expansion adults (versus the previous annual cycle); narrowed immigrant eligibility for federal Medicaid funding; and approximately $1 trillion in total Medicaid and CHIP spending cuts over ten years. The Congressional Budget Office estimates 11.8 million people will lose Medicaid coverage nationally over the next decade as a result.
When do California’s H.R. 1 Medicaid changes take effect?
Implementation is phased. The narrowed immigrant eligibility rules take effect October 1, 2026, affecting refugees, asylees, and other humanitarian categories who currently receive federally funded Medi-Cal. The community engagement (work) requirements and six-month eligibility redetermination cycle both take effect December 31, 2026. Providers should anticipate the first coverage disruptions in fall 2026, with broader impacts rolling out through early 2027 as the redetermination and work verification processes reach full scale.
Are children receiving ABA therapy protected from H.R. 1’s Medicaid cuts?
Children receiving ABA therapy have significant federal protection through the Early and Periodic Screening, Diagnostic, and Treatment (EPSDT) benefit, which requires states to cover medically necessary services for all Medicaid beneficiaries under 21, regardless of other eligibility changes. The work requirements and many other H.R. 1 provisions target the adult ACA expansion population, not children. However, the accelerated six-month redetermination cycle applies broadly and will create more frequent administrative touchpoints where coverage can lapse for any Medi-Cal member, including families of children in ABA programs, if paperwork deadlines are missed. California’s developmental disability services receive approximately $7 to $8 billion annually in federal Medicaid support, and any disruption to that funding stream would affect the broader autism services ecosystem. For a comparison of how a more aggressive state-level Medicaid ABA overhaul has already played out, see Indiana’s 2026 ABA Medicaid reforms.
What is the “medically frail” exemption under H.R. 1’s work requirements?
H.R. 1’s community engagement requirements include an exemption for individuals deemed “medically frail,” a category that explicitly includes people with substance use disorders and those with “disabling” mental disorders. Other exemptions apply to parents or caretakers of children under 14, pregnant women, individuals with disabilities, and several other categories. For behavioral health providers, the medically frail exemption is critical because it protects many of the most clinically complex patients from work requirement enforcement. However, verifying medically frail status adds an administrative layer: providers will need to ensure that qualifying clients are properly documented. The exact federal definition of “disabling” mental disorder has not yet been fully specified and awaits additional federal guidance.
How is California approaching work requirement verification differently from other states?
California plans to use an income-based proxy to verify compliance with work requirements rather than tracking hours directly. Because California’s minimum wage ($16.90 per hour as of January 2026) substantially exceeds the federal minimum wage ($7.25 per hour), a member who earns at least $580 per month (the federal minimum wage multiplied by the required 80 hours) would be deemed compliant, even if they are actually working fewer hours at California’s higher wage. This approach is intended to reduce administrative burden and preserve coverage for workers who meet the income threshold without requiring detailed hourly documentation. DHCS has framed this as one of its five implementation principles, alongside multilingual communication campaigns, streamlined redeterminations, Coverage Ambassador training, and early outreach.
What does H.R. 1 mean for substance use disorder providers in California?
SUD providers face a dual exposure under H.R. 1. On one hand, individuals with substance use disorders are explicitly listed as exempt from work requirements under the “medically frail” provision, providing some coverage protection for active treatment populations. On the other hand, the six-month redetermination cycle significantly increases the administrative frequency at which coverage must be renewed, creating more opportunities for coverage gaps in a population that may already face housing instability, inconsistent documentation, and other administrative barriers. The broader SUD provider landscape is also navigating accelerating pressure to move toward value-based contracting models, which require the kinds of outcomes data and payer relationships that Medicaid volatility makes harder to build. For a view of how private equity is positioning around behavioral health’s evolving reimbursement environment, investor appetite for well-documented, outcomes-driven platforms has notably increased even as federal funding uncertainty grows.
