Medi-Cal Claim Denied in California? Here's How to Appeal

California's Medi-Cal program covers more than 14 million residents, making it one of the largest Medicaid programs in the country. But coverage doesn't guarantee approval — denials, delays, and reductions happen regularly. Whether you received a Notice of Action cutting your benefits or a managed care plan refused to authorize treatment, you have strong legal rights to fight back.

Understanding the Medi-Cal System

Medi-Cal is administered by the California Department of Health Care Services (DHCS). Most beneficiaries are enrolled in a managed care plan rather than receiving services through traditional fee-for-service Medi-Cal. Your managed care plan — which may include Anthem Blue Cross, Health Net, Molina Healthcare, Kaiser, or one of many county-organized health systems — is responsible for authorizing and paying for most of your medical care.

If you enrolled through Covered California and receive premium assistance, your eligibility questions run through a separate track. But once you're enrolled in Medi-Cal, DHCS and your managed care plan govern your benefits.

Common Reasons Medi-Cal Claims Are Denied

Medi-Cal and its managed care plans deny claims and Prior Authorization Denied: How to Appeal" class="auto-link">prior authorization requests for various reasons:

• Medical necessity: The plan concludes the requested service is not medically necessary under their criteria
• Out-of-network provider: The service was provided by a doctor or facility not in the plan's network without proper referral
• Missing documentation: The provider did not submit adequate clinical records
• Benefit limit reached: You've exceeded a covered quantity or frequency limit
• Eligibility lapse: DHCS or the county shows a gap in your enrollment

For children, the federal EPSDT (Early and Periodic Screening, Diagnostic, and Treatment) mandate is especially important. Under EPSDT, Medi-Cal must cover any service that is medically necessary for a child under age 21, even if that service is not otherwise covered for adults. If your child's care was denied, EPSDT may give you a stronger basis for appeal.

Step 1 — File a Grievance With Your Managed Care Plan

If your care was denied by a managed care plan, your first step is an internal grievance or appeal. California law requires managed care plans to:

• Acknowledge your grievance within five calendar days
• Resolve standard grievances within 30 calendar days
• Resolve urgent/expedited grievances within 72 hours

Submit your grievance in writing and include your doctor's clinical notes, the denial letter, and a clear statement of why the denial was wrong. Your plan must tell you its decision in writing and explain how to appeal further.

Step 2 — Request a Medi-Cal State Fair Hearing

If your managed care plan upholds the denial, or if you were denied directly by DHCS, you can request a State Fair Hearing. This is an administrative hearing before the California Department of Social Services (CDSS) Office of Administrative Hearings and Appeals.

You must request a hearing within 90 days of receiving your Notice of Action. If you request a hearing within 10 days and your benefits were being reduced or terminated, you have the right to aid paid continuing — your benefits continue at the same level while the hearing is pending.

To request a fair hearing:

• Call 1-800-952-5253 (DHCS hearing line) or
• Submit a written request to the CDSS State Hearings Division

At the hearing, you (or an authorized representative) can present evidence, call witnesses, and challenge the plan's reasoning. A hearing officer issues a written decision. If you lose, you can appeal to the CDSS director and then to Superior Court.

Step 3 — Contact the DMHC or DHCS Ombudsman

For managed care disputes, California's Department of Managed Health Care (DMHC) operates a Help Center and can order an Independent Medical Review (IMR) — a fast-track External Independent Review: Complete Guide" class="auto-link">external review by an independent medical expert. The IMR is binding on the health plan. You can apply for an IMR online at dmhc.ca.gov while your fair hearing is also pending.

The DHCS Medi-Cal Managed Care Ombudsman (1-888-452-8609) can also help you navigate the process and escalate complaints.

Special Situations

Long-Term Services and Supports (LTSS): If your home- and community-based waiver services (such as In-Home Supportive Services or a Community-Based Adult Services program) were reduced or terminated, request a fair hearing immediately. A different set of federal waiver protections may apply.

Retroactive denial: If Medi-Cal is asking you to repay benefits already paid, you have the right to a fair hearing on that determination as well.

Continuity of care: If you changed managed care plans and your new plan won't continue your existing specialist or treatment, California law requires a transition period. File a grievance if your plan refuses.

Fight Back With ClaimBack

Appealing a Medi-Cal denial involves tight deadlines, dense paperwork, and medical jargon designed to discourage you. ClaimBack simplifies the process. Our platform helps you draft a professional appeal letter using your denial notice and medical records, identifying the exact regulatory and clinical arguments most likely to succeed.

Start your Medi-Cal appeal with ClaimBack

Don't let a denial letter be the final word on your healthcare.

Related Reading

• How to Write an Insurance Appeal Letter
• What Is Medical Necessity?
• Internal vs. External Insurance Appeal: Which Should You File?