Adding Your Newborn to Medicaid After Birth

How to add your newborn to Medicaid

Your newborn is automatically covered by Medicaid from birth if you were covered during pregnancy — you do not need to do anything at the hospital or before you leave. That coverage lasts until your child turns one year old, even if your own Medicaid ends sooner. After that first year, your child stays on Medicaid only if you formally add them to your case, which requires a separate step.

The timing matters because the automatic coverage has an expiration date. You need to contact your state Medicaid office or your local caseworker between your child's 9th and 12th month to add them permanently. If you wait until after the first birthday, there will be a gap in coverage while the program processes the new request.

Key Takeaways

• Your newborn is automatically covered by Medicaid from birth through age one if you were covered during pregnancy, with no action required at the hospital.
• After the first birthday, your child's coverage ends unless you submit a separate request to add them to your Medicaid case before month 12.
• Contact your state Medicaid office or local caseworker between months 9 and 12 to start the process and avoid a coverage gap.
• You will need your child's birth certificate and Social Security number to complete the request.
• Some states allow you to add your child online or by mail, while others require an in-person visit.

When the automatic coverage ends

The automatic Medicaid coverage for your newborn is temporary and tied to your pregnancy coverage, not to your child as a separate person. Once your child turns one year old, that coverage automatically stops. This happens regardless of whether your own Medicaid is still active or has ended.

The gap between the automatic coverage ending and a new permanent coverage beginning can leave your child uninsured if you do not act in advance. Some families discover this gap when they try to schedule a one-year checkup and learn the coverage has already lapsed. Starting the process in month 9 or 10 gives the program time to process the request before the birthday.

Documents you will need to add your child

Your state Medicaid program will ask for your child's birth certificate and Social Security number. You should have the birth certificate from the hospital or from your state's vital records office. If you have not yet received your child's Social Security number, you can request one at the hospital before discharge, or apply at your local Social Security office afterward.

You will also need to provide proof of your child's residency in your state — usually a utility bill, lease, or mortgage statement with your name and current address. Some states ask for proof of citizenship or immigration status for your child, though the rules vary by state. Call your state Medicaid office or your caseworker to confirm what documents your specific state requires before you gather everything.

How to contact your state Medicaid office

Your state Medicaid program is run by your state health or human services department, not by a federal office. The fastest way to reach the right person is to call your local Medicaid office or the caseworker who handled your pregnancy coverage. That caseworker already has your file open and can tell you exactly what your state needs and when to submit it.

If you do not have a caseworker's number, call your state's main Medicaid line — you can find it by searching "[your state] Medicaid phone number" or by calling 211, which connects you to local health and human services. Some states also let you add your child through their online Medicaid portal or by mail, so ask what methods are available when you call.

What happens after you submit the request

Once you submit the request to add your child, the program will review your household income and your child's residency to determine if they remain covered. Processing usually takes two to four weeks, though it can be longer during busy periods. Some states send you a new Medicaid card for your child; others add your child to your existing case and issue a combined card.

You should receive written notice of the decision in the mail. If your child is approved, the coverage will be backdated to their first birthday so there is no gap. If the program denies the request, the notice will explain why and tell you how to appeal or reapply.

If your own Medicaid has ended

Your child can stay on Medicaid even after your own coverage ends, as long as your child meets the income and residency rules for your state. Medicaid for children is based on your household income at the time you add your child, not on whether you personally remain covered. Some states have separate income limits for children that are higher than the limits for adults.

When you contact your state Medicaid office to add your child, tell them your own coverage status. They will evaluate your child's case independently and let you know whether your child qualifies. If your household income has changed since your pregnancy, that change may affect your child's coverage, so be prepared to report current income.

What to do if you miss the deadline

If your child's first birthday passes and you have not yet submitted the request, your child will lose coverage. You can still add your child to Medicaid after the birthday, but there will be a gap in coverage during the processing time. Submit the request as soon as you realize the deadline has passed.

Some states have special rules for adding children after a coverage gap, and some allow you to request that coverage be backdated to the date you submit the new request. Call your state Medicaid office to ask what options are available and whether they can cover any medical bills from the gap period. In the meantime, look into whether your child qualifies for coverage through the Children's Health Insurance Program (CHIP), which is a separate program that covers children whose families earn slightly too much for Medicaid.

Frequently Asked Questions

Do I have to do anything at the hospital to keep my newborn on Medicaid?

No. Your newborn is automatically covered from birth if you were covered during pregnancy. The hospital will have your Medicaid information on file. You do not need to sign anything or take any action at discharge.

What if I was not on Medicaid during pregnancy but want to cover my newborn?

Your newborn does not get automatic coverage if you were not covered during pregnancy. You will need to submit a new Medicaid request for your child as a separate person. Contact your state Medicaid office to learn about income limits for children in your state, which are often higher than adult limits.

Can I add my newborn to Medicaid if I am undocumented?

Your child's immigration status is separate from yours. Many states cover children regardless of the parents' immigration status. Call your state Medicaid office or 211 to ask about your state's specific rules — they will not ask about your status, only your child's.

What if my child is born in a different state than where I live?

Your child should be covered under your state's Medicaid during the automatic first-year period. When you add your child permanently, contact your home state's Medicaid office, not the state where your child was born. You will need to show proof that your child now lives in your state.

Will my child stay on Medicaid after age one?

That depends on your household income and your state's rules. Children usually have higher income limits than pregnant adults, so your child may stay covered even if your own income would disqualify you. Your state will tell you the coverage period when they approve your child — it may be for one year, until age 19, or longer.