A Medi-Cal overpayment notice is the state’s claim that you received medical benefits during months you weren’t actually eligible, and that you now owe the Department of Health Care Services (DHCS) the money back. You have the right to challenge the finding at a state hearing before paying anything, and you have 90 days from the date on the Notice of Action to request one.1California Department of Social Services. Hearing Requests Ignoring the notice is the worst option: unpaid balances can be collected through tax refund interception, liens on your home, and civil judgments.
What the Notice Actually Says, and What to Check First
The Notice of Action (NOA) identifies the specific months DHCS considers you ineligible, the reason, and the dollar amount it says you owe. After the overpayment unit establishes the balance, demand letters follow. The first demand letter spells out your appeal rights and tells you how to request a hearing.2Department of Health Care Services. Medi-Cal Eligibility Procedures Manual – Article 16 – Overpayments and Fraud
Write down the notice date. That date starts your appeal clock, and nothing else you do matters if you miss it. Then check the math, because the overpayment amount is often not what people assume.
For income-based overpayments, DHCS calculates the debt as the lesser of two figures: the total cost of Medi-Cal services paid during the overpayment period, or the amount by which your share of cost should have increased during those months.2Department of Health Care Services. Medi-Cal Eligibility Procedures Manual – Article 16 – Overpayments and Fraud If your share of cost should have been $200 higher per month but your actual medical costs were $3,000, the debt is based on the share-of-cost increase, not the full service cost.
For overpayments tied to excess property or assets, DHCS takes the lesser of the total services paid during the consecutive months you held excess property, or the highest excess property balance above the limit in any single month during that period.2Department of Health Care Services. Medi-Cal Eligibility Procedures Manual – Article 16 – Overpayments and Fraud If you were $5,000 over the property limit but received $20,000 in services, the amount owed is $5,000.
Compare the state’s numbers to your actual situation month by month. Look for specific errors: Did the state count a one-time gift as recurring monthly income? Did it use the wrong household size? Did it ignore a report you submitted? Calculation errors are common, and the more precise you can be about where things went wrong, the stronger your hearing request will be.
How to Request a State Hearing
You challenge a Medi-Cal overpayment through a state fair hearing with the California Department of Social Services (CDSS) State Hearings Division. You have 90 days from the date on the NOA to file.1California Department of Social Services. Hearing Requests After that, you’ll need to show good cause for a late filing, which is harder to meet. During the Medi-Cal redetermination period that began in 2023, DHCS temporarily extended the deadline to 120 days for redetermination-related hearings; confirm with CDSS whether that extension still applies to your situation.
You can file in writing or online:
- In writing: complete the hearing request form on the back of the NOA, or write your request on a separate sheet. Mail it to your county welfare department at the address on the notice, or directly to CDSS State Hearings Division at P.O. Box 944243, Mail Station 9-17-442, Sacramento, CA 94244-2430.
- Online: file through the CDSS online hearing request system.
Keep proof you filed. Save the confirmation page from an online submission, use tracking for anything mailed, and hold on to it. If the state later claims you filed late, that receipt is your protection.1California Department of Social Services. Hearing Requests
In the request, identify each month you’re disputing and explain specifically why you believe the finding is wrong. Attach copies of supporting documents (pay stubs, bank statements, tax returns, any correspondence you sent to your county reporting changes), not originals. An administrative law judge will decide. Vague objections carry no weight; concrete statements backed by paperwork do.
A Defense Most People Miss
If you reported an income change on time but the county couldn’t give you at least 10 days’ notice of your benefit reduction before the first of the following month, the state cannot assess an overpayment for that next month.3California Legislative Information. California Code WIC 11265.3 If you did your part and the county’s processing delay caused benefits to keep flowing, that gap isn’t yours to repay. This is the kind of argument that wins at a hearing, so dig out anything you sent your county office, including dates and confirmation numbers.
County administrative errors generally work the same way. A worker who failed to process your income report, entered the wrong household size, or missed a deadline for updating your file still generated an overpayment on paper, but the distinction between your error and the county’s matters at the hearing stage.
Keeping Your Coverage During the Appeal
If the same eligibility finding is also reducing or terminating your Medi-Cal coverage, when you file your hearing request matters. Under California’s “aid paid pending” rules, if you file before the effective date of the adverse action listed on the NOA, the state generally must keep your current benefits running until the hearing decision is issued. This protection depends on filing before that effective date, not just before the 90-day appeal deadline.
There’s a trade-off. If you lose the hearing, you may owe for the additional benefits received while the appeal was pending. For someone who genuinely believes the finding is wrong and needs continuous medical coverage, aid paid pending can still be worth it. If you’re unsure, contact your county office or a legal aid organization before that effective date passes.
Repayment Options If You Agree or Lose
Collection goes through the DHCS Recovery Section, which prefers voluntary repayment.4Department of Health Care Services. Overpayments Program You can pay the full balance at once or set up a monthly installment plan. Payments are typically made by check or money order mailed to the DHCS accounting office.
Setting up a payment plan early is worth doing even if the monthly amount is small. Any voluntary arrangement signals good faith and takes the more aggressive collection tools off the table.
What Happens If You Don’t Pay
When voluntary repayment doesn’t happen, DHCS escalates. The first tool is the Interagency Intercept Collection (IIC) program, which lets the state seize your California tax refund, lottery winnings, or unclaimed property to satisfy the balance.5Franchise Tax Board. Interagency Intercept Collection Program Overview Before an intercept, you’ll get a pre-intercept notice with 30 days to resolve or dispute the debt. Once that window closes, the offset can happen without any court order. California Government Code Section 12419.5 gives the State Controller broad authority to offset amounts you owe a state agency against amounts a state agency owes you, tax refunds included.6California Legislative Information. California Government Code 12419.5
If intercepts don’t cover the balance, DHCS can take the case further. The state may file a civil action in small claims court or refer the matter to the California Attorney General’s office to get a judgment. With a judgment, the state can levy against your assets or record a lien on real property.2Department of Health Care Services. Medi-Cal Eligibility Procedures Manual – Article 16 – Overpayments and Fraud A lien on your home doesn’t force an immediate sale, but it has to be paid before you can sell or refinance.
When an Overpayment Becomes a Fraud Case
Most overpayments are treated as civil debts, including those caused by honest mistakes or county processing errors. Intentional misrepresentation is a separate situation. Under California Welfare and Institutions Code Section 14107, knowingly submitting false information to obtain Medi-Cal benefits is punishable by two, three, or five years in prison and a fine of up to three times the amount of the fraud.7California Legislative Information. California Code WIC 14107 Federal health care fraud penalties can apply on top of state consequences.
The practical line between an overpayment and a fraud referral usually comes down to whether the state believes you concealed information deliberately. Forgetting to report a small raise looks very different from hiding bank accounts across multiple institutions. If your notice mentions fraud or an investigation, that is the point where talking to an attorney before you respond becomes genuinely important.