Medicaid Managed Care Plan Assignment Letter

What This Letter Means

Your state Medicaid program uses managed care plans (similar to HMOs) to deliver Medicaid benefits to most enrollees. This letter tells you that the state has assigned you to a specific managed care plan based on where you live and other factors. The good news: you may have the right to choose a different plan during a short window, usually 30–60 days. The key is to act fast if your current doctor or pharmacy is not in the assigned plan's network.

Quick Action Plan

Check the assigned plan's provider network: Call the plan's customer service number (on the letter) or visit their website. Ask if your current doctor, specialist, and pharmacy are in-network.
Check the drug formulary: Every plan has a different list of covered medicines. If you take medications, make sure they are covered by the assigned plan. If not, you may qualify to switch plans.
If your doctor is not in-network: You have the right to change plans during the 30–60 day opt-out period. Contact your state Medicaid agency to request a change.
If everything looks good: You don't need to do anything. Your coverage will start on the effective date shown in the letter. You will receive an insurance card in the mail.
Stay compliant: Medicaid managed care plans may require prior authorization for certain services and have network rules. Know your plan's rules before you need care.

Understanding Medicaid Managed Care

Traditional Medicaid: You can see any doctor who accepts Medicaid, and you don't need permission from a "gatekeeper."

Managed care plans (HMOs, PPOs, EPOs): You must choose a primary care doctor from the plan's network. Your primary care doctor refers you to specialists. You must use in-network doctors or you pay out-of-pocket (unless it's an emergency). The plan coordinates your care and may require prior authorization for certain services.

Why the switch? States use managed care to control costs and ensure care coordination. Most states have moved Medicaid to managed care.

The letter includes:

Plan name and type: The managed care plan you've been assigned to (e.g., "Medicaid HMO Plan A"). The letter tells you the plan type: HMO, PPO, or EPO.
Effective date: When your coverage with this plan starts (usually within 30 days of the letter date).
Plan contact information: Customer service phone number, website, and mailing address.
Your member ID and group number: You'll use these when seeking care or claiming benefits.
Network details: Information about how to find in-network doctors and verify coverage.
Opt-out window: The deadline to request a different plan (usually 30–60 days from assignment). If you don't act within this window, you're locked into the plan.

Most states give you 30–60 days from the assignment letter to request to switch to a different managed care plan (or, in some states, to request traditional Medicaid if available). This is called the "opt-out period" or "enrollment period."

How to opt-out:

Contact your state Medicaid agency (the number should be in the letter).
Tell them you want to change to a different plan or that you have a valid reason to opt out (e.g., your current doctor is not in-network).
You may need to submit a request in writing or by phone before the deadline.

After the deadline: If you don't request a change before the deadline, you're locked into the plan for 12 months. You won't be able to switch unless you have a qualifying event (moving to a new county, losing a job, etc.).

You may be able to request a plan change if:

Your current doctor is not in the plan's network: Most common reason. You need proof your current doctor does not participate in the plan.
Your medications are not on the plan's formulary: If you take a medicine the plan won't cover, you may qualify to switch.
You moved to a new area: If your address changed, you may be assigned a different plan with networks that match your new location.
You lost or are losing Medicaid: If you're about to become ineligible, you may be able to switch before that happens.
Other qualifying events: Some states allow changes for loss of employment, domestic violence, or change in family status. Check with your state.

Important: "My doctor is not in this plan" is usually a valid reason. Call the plan to confirm the doctor is not in-network, and keep a copy of that confirmation. Then contact Medicaid and request a plan change within your opt-out window.

Steps to verify your doctor is in-network:

Call the plan's customer service number (on the assignment letter). Have your current doctor's name and phone number ready.
Ask: "Is Dr. [name] in your network?" They can tell you instantly.
Get it in writing: Ask the plan to send you confirmation by mail or email if the doctor is not in-network. This helps if you need to appeal or request a plan change later.
Use the plan's online provider directory: Most plans have searchable websites where you can look up doctors by name or specialty.
Check your pharmacy too: Ask if your current pharmacy is in-network and if your medications are covered (formulary check).

Pro tip: Don't wait for your insurance card to arrive. Make these calls as soon as you receive this letter. You're in a race against the opt-out deadline.

Frequently Asked Questions

When does my coverage start?

Coverage usually starts on the effective date shown in the letter, typically the first day of the month after the assignment. Some plans may have a different effective date. Check the letter or call the plan's customer service to confirm.

Can I see my current doctor in this plan?

Not always. Managed care plans have limited networks. You must call the plan to ask if your doctor is in-network. If your doctor is not in-network, you may qualify to request a different plan during your opt-out window.

What if I don't choose a plan during the opt-out period?

If you don't request a change, you're automatically enrolled in the assigned plan. You'll be locked in for 12 months and won't be able to change plans unless you have a qualifying event (like moving or losing your job).

Will my benefits be different in a managed care plan?

Managed care plans must cover all Medicaid benefits (doctor visits, hospital care, prescriptions, etc.). However, copays, prior authorization rules, and network restrictions vary by plan. Review your plan's benefits summary to understand cost-sharing and any limitations.

What is prior authorization and will it affect my care?

Some services (like certain surgeries or specialist visits) require the plan's approval in advance. Your doctor should handle this, but you may face delays if the plan denies the request. If denied, you can appeal. Ask your plan which services require prior authorization.

Do I have to pick a primary care doctor?

Yes, if you're in an HMO. Your primary care doctor manages your care and refers you to specialists. You'll choose a doctor from the plan's network. Some plans may assign you a primary care doctor if you don't choose one.

What if I need emergency care?

You can go to any emergency room in the country. Managed care plans cover emergency care regardless of whether the hospital is in-network. However, follow-up care after the emergency should be with in-network providers when possible.

Dr. Ed's Tip

The FIRST thing to check: is your current doctor in the plan's network? If not, you have the right to choose a different plan. Don't wait — call the number on the letter and ask for the provider directory. Also check if your medications are covered (every plan has a different formulary). If your doctor is not in-network AND your opt-out window is closing, request a plan change immediately. Many people miss the deadline and get locked into a plan where they can't see their doctor. Don't be that person. Act this week.

What to Do If You Have Problems

If the plan denies coverage or approval for a service:

Ask why. The plan must provide a written denial with a reason and your appeal rights.
Understand your appeal options: You have the right to appeal the plan's decision to the plan itself (internal appeal) and to your state Medicaid agency (external appeal or state fair hearing).
Request a copy of the denial letter. You'll need it for your appeal.
Contact your state Medicaid agency or a legal aid organization if you need help with the appeal.

Appeals can take 30–90 days, so it's worth fighting a denial if it affects important care.

If you move to a new address:

Report the move to Medicaid immediately. You may be reassigned to a plan that serves your new area.
You may qualify for an early plan change if your current plan doesn't serve your new address.
Provide your new address to the plan so they can send your insurance card and other materials to the right place.

Once the opt-out window closes, you're locked into the plan for 12 months. However, you can request a plan change if you have a "good cause" or "qualifying life event," such as:

Your doctor left the plan or retired.
The plan quality is very poor (documented complaints).
You moved to a new county.
You lost or gained dependents.
Your circumstances changed (income, employment, family size).

Contact your state Medicaid agency to request an exception or mid-year change. You'll need to provide evidence of your qualifying reason.