California health coverage is split between two regulators, layers extra mandates on top of federal law, and offers its own Cal-COBRA continuation for small employers. This standalone guide reviews the national medical-plan fundamentals and then makes California-specific law the spine—dual oversight (DMHC vs. CDI), continuation/conversion, and state coverage requirements.

The national base: types of medical plans

Most health questions begin with plan design:

• HMO (Health Maintenance Organization) — care coordinated through a primary care physician (PCP), in-network, with referrals; emphasizes prepaid, managed care.
• PPO (Preferred Provider Organization) — a network with lower cost in-network but out-of-network access without referrals.
• EPO and POS plans blend these features.
• Indemnity/fee-for-service — traditional reimbursement, now rare.

Federal law (the Affordable Care Act) sets the floor: coverage of essential health benefits, no denial for pre-existing conditions, guaranteed issue/renewability, dependent coverage to age 26, and no lifetime/annual dollar limits on essential benefits.

California's two regulators: DMHC vs. CDI

California's standout feature is split oversight of health coverage:

• The Department of Managed Health Care (DMHC) regulates health care service plans—primarily HMOs and most managed-care plans—under the Knox-Keene Health Care Service Plan Act. The DMHC runs the Independent Medical Review (IMR) process for denied/disputed care.
• The California Department of Insurance (CDI) regulates health insurance policies—primarily PPO and indemnity products issued by insurers.

A quick test: HMO/managed care → DMHC (Knox-Keene); PPO/indemnity insurance → CDI. This division shows up constantly on the California exam.

Continuation: Cal-COBRA vs. federal COBRA

When group coverage would otherwise end, employees may continue it:

• Federal COBRA applies to employers with 20 or more employees and provides continuation generally up to 18 months (longer in some situations, such as disability or certain qualifying events).
• Cal-COBRA is California's parallel law for small employers (2–19 employees) and also extends continuation in certain cases. Cal-COBRA can provide continuation up to 36 months, and it can also extend coverage for federal COBRA enrollees beyond their initial 18 months up to a combined 36 months.

The exam loves the split: 20+ → federal COBRA; 2–19 → Cal-COBRA.

Conversion rights

Beyond continuation, California has historically required conversion—the right to convert group coverage to an individual policy when continuation ends—so a person isn't left uninsured. With ACA guaranteed-issue individual coverage and the Covered California marketplace, many people now move to a marketplace plan, but the conversion concept remains a tested fundamental: coverage converts without new evidence of insurability.

California coverage mandates

California requires health plans/policies to include various state-mandated benefits that often exceed the federal floor. Common examples tested at a high level:

• Maternity and newborn care.
• Mental health and substance use parity, including coverage for serious conditions and autism-related behavioral health treatment.
• Cancer screening (such as mammography) and other preventive screenings.
• Diabetes management supplies and education.
• Reconstructive surgery and certain procedures.

For the exam, know that California adds mandates rather than memorizing each one; if asked whether California requires more than federal minimums, the answer is generally yes.

Other California consumer protections

• Independent Medical Review (IMR) through the DMHC lets an enrollee challenge a denial, delay, or modification of care, with a binding outside medical opinion.
• Guaranteed renewability and limits on rescission protect insureds against arbitrary termination.
• Free look / review rights and required disclosure documents (Evidence of Coverage) apply to managed-care plans.
• Grievance and appeals timelines require plans to respond within set periods (treat exact days as the current regulatory figures).

Key terms at a glance

Common exam traps

• Sending an HMO complaint to the CDI. HMOs/managed care are regulated by the DMHC under Knox-Keene; PPO/indemnity goes to CDI.
• Applying federal COBRA to a 10-employee firm. Small employers (2–19) use Cal-COBRA.
• Capping Cal-COBRA at 18 months. Cal-COBRA can run up to 36 months.
• Forgetting conversion is without new underwriting.
• Assuming California only meets federal minimums. California adds mandated benefits.
• Overlooking IMR. Denied care can go to DMHC Independent Medical Review.

Quick recap

California health coverage is uniquely split between the DMHC (HMOs/managed care under the Knox-Keene Act, with Independent Medical Review) and the CDI (PPO/indemnity insurance). Continuation depends on employer size: federal COBRA for 20+ employees (~18 months) and Cal-COBRA for 2–19 employees (up to 36 months), with conversion to individual coverage available without new evidence of insurability. Layered on the ACA floor, California mandates benefits such as maternity, mental health/substance use parity, screenings, and diabetes care that often exceed federal minimums. Remember "HMO → DMHC, PPO → CDI," the COBRA size split, and that California adds mandates, and the medical-plans section becomes manageable.