California CA

California Department of Health Care Services (dhcs.ca.gov) underwent a structural website migration on 2026-05-20. Caught via GovDelivery listserv migration-keyword detection. Affects all rules pinned to dhcs.ca.gov subpages; drift watch should flag baseline mismatches on those URLs.

Drug PA for CA Medicaid is carved out from MCOs to Medi-Cal Rx (Magellan). Since 2022, NO Medi-Cal Managed Care plan administers drug PA — all drug authorization flows through Magellan-operated Medi-Cal Rx. This is why CA medicaid_mco drug rules return carve_out_routed verdicts: structurally misclassified at the row level, correctly handled by the structural shortcut.

CA is tagged mco_canonical_single (Anchor-MCO) NOT because it has only one MCO — CA has 14 Medi-Cal Managed Care plans — but because ONE plan (L.A. Care) publishes the canonical statewide PA-required HCPCS list under their CMS-0057-F metrics page. Operational shape (one canonical source for verification) supersedes organizational shape (plan count). This distinction is the test case for the taxonomy: classify by where the canonical PA source lives, not by enrollment.

CA Medi-Cal expresses PA through THREE distinct loci, not one. (1) FFS/residual: Treatment Authorization Requests (TARs) whose criteria live as per-section PDFs in the Medi-Cal Provider Manual, now served from the migrated CAMMIS portal (mcweb.apps.prd.cammis.medi-cal.ca.gov). The canonical FFS PA grid is the "TAR and Non-Standard Benefits List" — code-range-partitioned PDFs (one per HCPCS/CPT range) mapping every code to TAR-required status, plus TAR Completion / Frank v. Kizer deferral policy / appeals sections. (2) Managed care (medical): delegated to 14 county MCOs, each with its own PA grid; L.A. Care publishes the canonical statewide CMS-0057-F PA metrics report — our Anchor-MCO operational anchor (still live). (3) Pharmacy: fully carved out to Medi-Cal Rx / Magellan since 2022. RESOLVES the Anchor-MCO classification: CA is operational-shape Anchor-MCO (one canonical anchor = L.A. Care) layered ON TOP of a state-published FFS TAR manual that IS centrally published — so the FFS criteria are NOT MCO-delegated; only the managed-care medical PA is per-plan. URL DECAY confirmed live (validates finding 578): old state_meta pa_index (dhcs.ca.gov/.../PriorAuthorization.aspx) now returns Page-not-found, and the old files.medi-cal.ca.gov/pubsdoco manual menu times out — both migrated. New canonical manual home is the CAMMIS publications app.

Last award: 2022-12-30. Next due: Procurement cycle re-bid expected before 2028-12-31.

Current + prior fiscal agents. Tracks ACS-Inc → Conduent/Gainwell transitions so we know when *.acs-inc / *.conduent / *.xerox subdomains die.

status=partial

## 1. How CA requires PA California's Medicaid program, Medi-Cal, requires prior authorization (PA) for various medical services and procedures to ensure medical necessity and appropriate utilization of resources. These requirements are managed through multiple channels: - **Treatment Authorization Requests (TARs):** TARs are used for non-standard benefits and specific services such as hospitalization (non-emergency), out-of-area services, skilled nursing facilities, specialized treatments, imaging, testing, procedures, and major organ transplants. Decision timelines vary based on urgency: 72 hours for urgent requests and 7 days for non-urgent. - **Anchor-MCO Canonical List:** The Los Angeles Care (L.A. Care) plan publishes a canonical list of HCPCS codes that require PA under their CMS-0057-F metrics page. This serves as the authoritative source for verifying PA requirements across Medi-Cal Managed Care plans. - **Pharmacy Carve-Out:** Drug-related prior authorization is handled by Magellan through the Medi-Cal Rx program, which was implemented in 2022. No Medi-Cal Managed Care plan administers drug PA; all drug authorization flows through Magellan-operated Medi-Cal Rx. ## 2. How CA publishes and reports PA California's Medi-Cal program uses a combination of centralized and decentralized systems to publish and report prior authorization (PA) requirements: - **Centralized Portal:** While California has a partial centralized PA portal, it is not fully integrated for all services. The CAMMIS-migrated portal (mcweb.apps.prd.cammis.medi-cal.ca.gov) serves as the primary source for Treatment Authorization Requests (TARs) and their criteria, which are provided in per-section PDFs within the Medi-Cal Provider Manual. - **Anchor-MCO Metrics Page:** L.A. Care maintains a CMS-0057-F metrics page that lists HCPCS codes requiring PA, serving as the canonical reference point for all Managed Care Organizations (MCOs) in California. - **Monthly Bulletins and Newsletters:** The California Department of Health Care Services (DHCS) regularly publishes bulletins and newsletters containing updates on specific services, drugs, and their PA requirements. These documents are available on the DHCS website but may require manual tracking due to frequent changes and migrations. ## 3. CA's CMS-0057-F and PA-reform compliance posture California’s Medi-Cal program is actively working towards compliance with CMS-0057-F, which mandates transparency and reporting of prior authorization (PA) requirements: - **CMS-0057-F Reporting:** L.A. Care serves as the Anchor-MCO responsible for publishing the canonical list of HCPCS codes requiring PA on their CMS-0057-F metrics page. This ensures that all MCOs in California have access to a standardized set of PA criteria. - **PA Reform Initiatives:** California is implementing reforms through initiatives like CalAIM (California Advancing and Innovating Medi-Cal), which aim to streamline PA processes and improve transparency. Note: WISeR does not apply to California — WISeR = CMS "Wasteful and Inappropriate Service Reduction," a Medicare prior-authorization model running in only six states (AZ, NJ, OH, OK, TX, WA). ## 4. How CA runs its own program California’s Medi-Cal program is structured with a mix of centralized and decentralized management: - **Managed Care Organizations (MCOs):** California has 14 MCOs, each responsible for managing care for specific populations. However, the PA requirements are standardized through L.A. Care's canonical list, ensuring consistency across plans. - **Pharmacy Carve-Out:** Drug-related prior authorization is handled by Magellan through Medi-Cal Rx, which was implemented in 2022. This carve-out ensures that all drug authorization flows through a single entity, simplifying the process for providers and patients. - **Behavioral Health (BH) and Long-Term Services and Supports (LTSS):** Behavioral health services are carved out to counties, while LTSS services are split between MCOs and county programs. This structure allows for more localized management of these specialized services. - **Fiscal Agents:** California has a history of transitions in fiscal agents, including ACS-Inc → Conduent/Gainwell. These changes affect the subdomains used by Medi-Cal systems, necessitating careful tracking to ensure continuity of service. ## 5. Patterns, what's notable, and what's missing/uncertain ### Notable Patterns: - **Standardization through L.A. Care:** The use of L.A. Care as the Anchor-MCO for publishing a canonical list of HCPCS codes requiring PA ensures consistency across all MCOs. - **Pharmacy Carve-Out:** The carve-out of drug-related prior authorization to Magellan simplifies the process and centralizes decision-making. - **Regular Updates:** Medi-Cal regularly publishes bulletins and newsletters with updates on specific services, drugs, and their PA requirements. ### What's Missing/Uncertain: - **WISeR:** Not applicable to California (WISeR is a Medicare PA model in AZ, NJ, OH, OK, TX, WA only); the placeholder finding is not a signal. - **Foster Care Program Details:** Information on the Medi-Cal foster-care MCO program is unspecified, making it unclear how these services are managed and authorized. - **Gold Card Law:** The specifics of California's Gold Card law are unspecified, which could have implications for certain high-cost or specialized services. - **Website Migration Impact:** The recent website migration by DHCS (2026-05-20) may affect the accessibility and reliability of PA-related documents. Ongoing drift watch is necessary to ensure baseline mismatches do not occur. These gaps highlight areas where further research and clarification would be beneficial for a comprehensive understanding of California's Medicaid prior authorization processes.