File for Medicaid through your state's agency, not a federal office
Medicaid is run by each state, not by the federal government, so you file where you live. Most states have a single application portal or office — often called the Department of Human Services, Department of Social Services, or Department of Health and Human Services — but the name and process vary by state. You can file online, by mail, in person, or sometimes by phone, depending on what your state offers.
The fastest way to find your state's exact process is to search "[your state] Medicaid application" or visit your state health department's website directly. Many states now let you start an application online and finish it by mail or in person if you need to. Some states use a shared portal called MAGI (Modified Adjusted Gross Income) that handles multiple benefit programs at once.
Key Takeaways
- Contact your state's Department of Human Services, Social Services, or Health and Human Services — not a federal agency — to file for Medicaid.
- Most states offer online applications, but you can also file by mail or in person; phone filing is less common but available in some states.
- You will need proof of income, citizenship or immigration status, and residency; the exact documents depend on your state's rules.
- Processing time ranges from a few days to 45 days depending on your state and whether your application is complete when you submit it.
- If you are unsure which state office to contact, calling 211 or your state's main benefits line can direct you to the right place in minutes.
How to find your state's Medicaid office
Start by searching "[your state name] Medicaid" or "[your state name] apply for Medicaid." This will take you to your state health department or social services website, where you will find the application link and office locations. Most state websites list phone numbers, mailing addresses, and online portals on the same page.
If you cannot find it quickly, call 211 (a free helpline available in all states) and tell them you need to file for Medicaid. They will give you your state's specific office name, phone number, and website in one call. You can also call your state's main benefits line — usually listed on the state government website under "Human Services" or "Social Services" — and ask to be transferred to Medicaid.
Some states use regional offices, so you may need to file through the office that covers your county. Your state's website will tell you which office serves your address.
Online filing: the fastest option in most states
Most states now have an online Medicaid application you can start from home. You create an account, answer questions about income and household size, upload documents, and submit. The website will tell you what documents to upload — usually pay stubs, tax returns, proof of residency, and proof of citizenship or immigration status.
Online filing usually takes 15 to 30 minutes if you have your documents ready. You can save your progress and come back later if you need to find a document. After you submit, the state sends you a confirmation number and tells you when to expect a decision — typically within 30 days, though some states are faster.
Even if you file online, you may need to mail or bring original documents later. The state will contact you if they need to see the originals instead of copies.
Mail and in-person filing
If you do not have internet access or prefer to file on paper, you can request an application by mail or pick one up in person at your state's office. Mail filing takes longer — usually 45 days or more — because the state has to receive your application, process it, and contact you if anything is missing.
In-person filing at a local office is often faster than mail because a caseworker can check your documents on the spot and tell you right away if anything is missing. You do not need an appointment in most states, but some offices ask you to call ahead or book a time slot online. Bring all your documents with you: proof of income, proof of residency, proof of citizenship or immigration status, and your Social Security number.
If you file by mail, send your application to the address listed on your state's website and keep a copy for your records. Include a cover letter with your name, phone number, and email so the state can contact you if they have questions.
What documents you will need
Every state requires proof of income, residency, and citizenship or immigration status, but the exact documents vary. Most states accept recent pay stubs, tax returns, or a letter from your employer for income. For residency, a utility bill, lease, or mortgage statement usually works. For citizenship, a birth certificate, passport, or state ID is standard.
If you are not a U.S. citizen, you will need to show your immigration status — a green card, work visa, or other immigration document. Some states cover certain non-citizens; others do not. Your state's website will list which immigration statuses may have access to.
If you do not have a document the state asks for, call your state's Medicaid office and ask what alternatives they accept. Many states will work with you if you explain why you cannot get a particular document.
How long approval takes
Processing time depends on your state and whether your application is complete. Most states aim to decide within 30 days, but some take up to 45 days. If your application is missing information, the state will contact you and give you time to send it — this can add weeks to the process.
Online applications usually process faster than mail applications because the state receives them immediately. If you file online and the state needs more information, they can contact you by email or phone right away.
Once you are approved, your coverage usually starts on the first day of the month you filed or the first day of the following month, depending on your state. The state will send you a Medicaid card or tell you how to access your coverage online.
What to do if you have trouble filing
If your state's website is confusing or you cannot find the application, call 211 or your state's main benefits line. They can walk you through the process over the phone or connect you with a local office that can help in person.
If you filed and have not heard back after 45 days, call your state's Medicaid office and ask for the status of your application. Have your confirmation number or application date ready. If the state says your application was denied, ask for a written explanation and whether you can appeal the decision.
Some states offer free help through community organizations or legal aid offices if you need someone to walk you through the application. Your state's Medicaid website usually lists these resources, or you can ask when you call 211.
Frequently Asked Questions
Can I file for Medicaid online in every state?
Most states offer online filing, but not all. A few states still require mail or in-person applications. Your state's website will show you what options are available. If online is not an option in your state, you can file by mail or in person at a local office.
What if I do not have all my documents when I file?
You can file with what you have and send the rest later. Many states let you submit an incomplete application and give you a deadline to send missing documents. Call your state's office before you file to ask what they need most urgently.
Do I have to file in person or can I have someone else file for me?
Most states let you file online or by mail without going in person. If you need someone else to file on your behalf, some states allow a family member or representative to do so, but you usually have to sign a form giving them permission. Ask your state's office what their rules are.
What happens after I get approved for Medicaid?
The state will send you a Medicaid card or tell you how to check your coverage online. You can use your card at any doctor, hospital, or pharmacy that takes Medicaid. Your state will also send you information about your coverage and any rules you need to follow.
Can I file for Medicaid if I am not a U.S. citizen?
It depends on your immigration status and your state. Some states cover certain non-citizens; others do not. Your state's Medicaid website will list which immigration statuses may have access to. If you are unsure, call your state's office and ask — they can tell you over the phone.