Fair Square Medicare Wordmark

Do You Need Medigap if You're Eligible for Both Medicare and Medicaid?

A person with a shopping cart already containing medicaid and medicare sees Medigap options on a table. In a thought bubble, they ask "Should I get Medigap too?"

By Daniel Petkevich

Jan 7, 2023

You may enroll in more than one plan, but you don't need all three. Here's why:

Medicare, Medicaid, and Medigap (also known as Medicare Supplement) often overlap; sometimes, people sign up for more than one plan. But is there ever a time when you should enroll in all three?

Speak with a Medicare Advocate

Talk to one of our Licensed Medicare Agents today to find the right plans for you.

We want you to get the best benefits possible, so we'll walk you through everything you need to know.

Let's explore Medicare, Medicaid, and Medigap in more detail, get a sense of their differences, and discuss whether to enroll in more than one plan.

What's the Difference Between Medicare, Medicaid and Medigap?

Medicare, Medicaid and Medigap all assist in covering your healthcare expenses. But they help different populations and meet unique needs.

Let's take a look at each plan.

Medicare

Medicare

is a health insurance program administered by the U.S. federal government.

It provides coverage to people ages 65+ and those with disabilities or

ESRD

(end-stage renal disease).

There are four parts to Medicare:

  • Part A — part of Original Medicare; covers inpatient hospital stays, skilled nursing facility care, hospice care, and some home healthcare

  • Part B — part of Original Medicare; covers medically necessary services and preventive care, such as doctor visits, lab tests, and durable medical equipment

  • Part C (Medicare Advantage) — alternative to Parts A and B offered by private insurance companies; combines all the benefits of Parts A and B and often includes additional benefits, such as prescription drug coverage

  • Part D — prescription drug benefit that can be added to Original Medicare (Parts A and B) or a Part C plan

Medicaid

Medicaid is a joint federal and state program that provides health insurance to low-income individuals and families — including the elderly, individuals with disabilities, children, and pregnant women.

Medicaid might cover a wide range of medical services, such as:

  • Doctor visits

  • Hospital stays

  • Prescription drugs

  • Long-term care

  • Immunizations

  • Screenings

Medicaid is administered by the states (rather than at a federal level). And each state has its own eligibility criteria and benefits. To be eligible for Medicaid, you must meet your state's income and asset requirements.

Medigap

Medigap is a supplemental insurance policy that supplements Original Medicare (Part A and Part B).

It helps cover certain out-of-pocket costs — like copayments, coinsurance, and deductibles. However, it doesn't cover

long-term care

, vision, dental, hearing aids, private-duty nursing, and prescription drugs.

Medigap policies are offered by private insurance companies and are standardized by the federal government. You can choose from

10 Medigap plans

depending on your requirements.

Medicare Supplement Plan G

offers the most comprehensive coverage for many of our clients.

Can I Get Both Medicare and Medicaid Benefits Together?

Yes. You can benefit from Medicare and Medicaid if you're dually eligible. In other words, you have to meet the eligibility requirements for both Medicare and Medicaid.

To be dually eligible, you must meet the following conditions:

  • Be 65 years or older or have a disability (like ESRD)

  • Have a low income

How Do Medicare and Medicaid Work Together?

Medicare covers 80% of your healthcare expenses, while Medicaid helps cover the remaining out-of-pocket costs left by Medicare Parts A and B.

In other words, Medicare covers services that Medicaid doesn't and vice versa.

For example, Medicare may cover your hospital stays, doctor visits, and lab tests, while Medicaid covers your additional expenses like premiums, prescription drugs, eyeglasses,

hearing aids

and long-term care. Both work together to maximize your benefits and provide comprehensive coverage.

To better understand how these two programs work together, you need to be familiar with two terms: coordination of benefits and crossover claims.

What Is Coordination of Benefits?

When a person has multiple health insurance plans (like Medicare and Medicaid), providers must coordinate their benefits to avoid overpaying or duplicating coverage. Coordination of benefits determines which health insurance plan should pay for a medical service or claim first.

  • "Primary" payer — the insurance plan that pays first

  • "Secondary" payer — the plan that pays second

In general, Medicare is the primary payer, and Medicaid is the secondary payer. This means Medicare will pay for covered medical services first, and Medicaid will pay for any remaining expenses not covered by Medicare — like copayments, deductibles and coinsurance.

What's a Crossover Claim?

A crossover claim is a medical claim submitted to multiple insurance plans. They're used when an individual has two insurance plans that coordinate their benefits.

For example, if you’re enrolled in both Medicare and Medicaid, your provider will submit the claim to Medicare. Medicare will process the claim first and apply any deductibles, coinsurance, or copayments. The claim will then be automatically forwarded to Medicaid. (Note: Your provider doesn't have to bill Medicaid separately for the deductible, coinsurance, or copayments that Medicare applied).

Is Medigap Necessary If You Are Eligible for Both Medicare and Medicaid?

No. You don't need to enroll in a Medigap Plan if you're enrolled in Medicare and are eligible for full Medicaid benefits.

Here's why:

  • Most of your medical expenses are likely covered if you're dually eligible for Medicare and Medicaid

  • Insurance companies aren't permitted to sell Medigap policies to Medicare beneficiaries with full Medicaid coverage

I Don't Qualify for Medicaid. Can I Still Get a Medigap Plan?

Yes! Medigap plans are good for individuals who don't qualify for Medicaid. They're especially helpful if you have a high income or assets and need help with out-of-pocket costs not covered by Original Medicare (Parts A and B).

Takeaway

Medicare, Medicaid, and Medigap are all health insurance programs that cover your medical expenses. Medicaid is specifically designed to help low-income individuals pay for out-of-pocket costs. In contrast, Medigap plans often help high-income individuals — who aren't eligible for Medicaid — pay for their out-of-pocket costs.

You don't need to enroll in a Medigap Plan if you're eligible for both Medicare and Medicaid. Medicaid will likely cover most of your out-of-pocket expenses.

Having multiple health insurance plans can give you more comprehensive coverage. But it can also be confusing. At

Fair Square Medicare

, we have helped thousands of beneficiaries understand the ins and outs of Medicare and make informed decisions about their coverage. If you have any questions, give us a call at 1-888-376-2028.

Speak with a Medicare Advocate

Talk to one of our Licensed Medicare Agents today to find the right plans for you.

Recommended Articles

Medicare 2025 What you need to know in the new year stock image

How is Medicare Changing in 2025?

Dec 21, 2022

Health insurance form on a table with pen, calculator and glasses stock image

What You Need to Know About Creditable Coverage

Jan 18, 2023

Dripping medication stock photo

Does Medicare Cover Ketamine Infusion for Depression?

Nov 23, 2022

Washington DC stock image

14 Best Ways for Seniors to Stay Active in Washington, D.C.

Mar 11, 2023

Cover image

Does Medicare Cover Shock Wave Therapy for Plantar Fasciitis?

Nov 30, 2022

Cover image

What is Plan J?

Jul 14, 2025

stack of books stock image

Do You Need Books on Medicare?

Apr 6, 2023

20 Q's with Fair Square

20 Questions to Ask Your Medicare Agent

Mar 17, 2023

senior man reaching to his ear with jumbled letters going into the ear stock image

Does Medicare Cover Hearing Aids?

Nov 9, 2022

The feet of a person suffering from foot pain stock photo

Does Medicare Cover Cartiva Implants?

Nov 29, 2022

Cover image

When to Choose Medicare Advantage over Medicare Supplement

Jun 7, 2023

Cover image

10 Top Medicare Supplement (Medigap) Companies for 2025

Jul 14, 2025

Senior woman smiling after vaccination stock photo

Does Medicare Cover Flu Shots?

Dec 9, 2022

Senior person holding tissue roll near a toilet bowl, using walker to walk to the bathroom stock photo

Does Medicare Cover Disposable Underwear?

Dec 8, 2022

senior man pondering "which medigap plan should i choose" stock photo

Comparing All Medigap Plans | Chart Updated for 2025

Aug 1, 2022

The feet of a man suffering from foot pain stock photo

Does Medicare Cover Krystexxa?

Nov 18, 2022

Fair Square

Is Displacement Affecting Your Medicare Coverage?

Oct 6, 2022

Cover image

Does Medicare cover Hyoscyamine?

Nov 30, 2022

More of our articles

13 Best Ways for Seniors to Stay Active in Columbus

13 Best Ways for Seniors to Stay Active in Phoenix

14 Best Ways for Seniors to Stay Active in Seattle

15 Best Ways for Seniors to Stay Active in Denver

2024 Cost of Living Adjustment

2024 Fair Square Client Retention and Satisfaction Report

Building the Future of Senior Healthcare

Can Doctors Choose Not to Accept Medicare?

Can I Change My Primary Care Provider with an Advantage Plan?

Can I Choose Marketplace Coverage Instead of Medicare?

Can I Have Two Primary Care Physicians?

Can I Laminate My Medicare Card?

Can I switch From Medicare Advantage to Medigap?

Can Medicare Advantage Plans Deny Coverage for Pre-Existing Conditions?

Do All Hospitals Accept Medicare Advantage Plans?

Do You Need Medigap if You're Eligible for Both Medicare and Medicaid?

Does Medicare Cover an FMT?

Does Medicare Cover Boniva?

Does Medicare Cover Breast Implant Removal?

Does Medicare Cover Cala Trio?

Does Medicare Cover Chiropractic Visits?

Does Medicare Cover Cold Laser Therapy (CLT)?

Does Medicare Cover Compounded Medications?

Does Medicare cover Deviated Septum Surgery?

Does Medicare Cover Hypnotherapy?

Does Medicare Cover Kyphoplasty?

Does Medicare Cover Linx Surgery?

Does Medicare Cover Lipoma Removal?

Does Medicare Cover LVAD Surgery?

Does Medicare Cover Medical Marijuana?

Does Medicare Cover Mouth Guards for Sleep Apnea?

Does Medicare Cover Nuedexta?

Does Medicare Cover Qutenza?

Does Medicare Cover Robotic Surgery?

Does Medicare Cover SIBO Testing?

Does Medicare Cover Stair Lifts?

Does Medicare Cover the Urolift Procedure?

Does Medicare Cover Tymlos?

Does Medicare Cover Urodynamic Testing?

Does Medicare Cover Zilretta?

Does Medicare Require a Referral for Audiology Exams?

Does Your Plan Include A Free Gym Membership?

Fair Square Bulletin: We're Revolutionizing Medicare

Fair Square Client Newsletter: AEP Edition

Finding the Best Vision Plans for Seniors

Gap Health Insurance: The Secret Sidekick to Your High-Deductible Plan

How Are Medicare Star Ratings Determined?

How Can I Get a Replacement Medicare Card?

How Does Medicare Cover Colonoscopies?

How Medicare Costs Can Pile Up

How Much Does a Pacemaker Cost with Medicare?

How to Choose a Medigap Plan

How to Compare Medigap Plans in 2025

How to Deduct Medicare Expenses from Your Taxes

Is Fair Square Medicare Legitimate?

Is the Shingles Vaccine Covered by Medicare?

Medicare & Ozempic

Medicare Advantage Plans for Disabled People Under 65

Medicare Guaranteed Issue Rights by State

Should You Work With A Remote Medicare Agent?

The Easiest Call You'll Ever Make

Turning 65 and Thinking of Keeping COBRA? Here’s Why It Usually Backfires

Welcome to Fair Square's First Newsletter

What Does Medicare Cover for Stroke Patients?

What Is a Medicare Advantage POS Plan?

What is the 8-Minute Rule on Medicare?

What is the Medicare ICEP?

What People Don't Realize About Medicare

What to Do When Your Doctor Leaves Your Network

What's the Difference Between HMO and PPO Plans?

Why You Should Keep Your Medigap Plan

Will Medicare Cover Dental Implants?

Your Medicare One-Stop-Shop

Your guide to Medicare Parts A & B, Medicare Advantage, and Medigap. 100% free.

Get the Fair Square Bulletin

Medicare savings tips, helpful guides, and more.

About

Medicare 101

Current Clients

Medicare Supplement Plans

Medicare Advantage Plans

Fair Square 2026

•
Terms of Use
•
Notice of Privacy Practices

Virgil Insurance Agency, LLC (DBA Fair Square Medicare) and www.fairsquaremedicare.com are privately owned and operated by Help Button Inc. Medicare supplement insurance plans are not connected with or endorsed by the U.S. government or the federal Medicare program. This is a solicitation of insurance. A licensed agent/producer may contact you. Medicare Supplement insurance is available to those age 65 and older enrolled in Medicare Parts A and B and, in some states, to those under age 65 eligible for Medicare due to disability or End-Stage Renal disease. Virgil Insurance Agency is a licensed and certified representative of Medicare Advantage HMO, HMO SNP, PPO, PPO SNP and PFFS organizations and stand-alone PDP prescription drug plans. Each of the organizations we represent has a Medicare contract. Enrollment in any plan depends on contract renewal. The plans we represent do not discriminate on the basis of race, color, national origin, age, disability, or sex. Plan availability varies by region and state. For a complete list of available plans please contact 1-800-MEDICARE (TTY users should call 1-877-486-2048), 24 hours a day/7 days a week or consult www.medicare.gov. © 2026 Help Button Inc

We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options.

MULTIPLAN_FairSquareMedicare_01062022_M

Fair Square Medicare

FSM symbol - 50