You already know you can depend on your spouse, but can you rely on their private healthcare plan to be there for you? If your spouse is still working, you might be confused about your needs as you become eligible for Medicare. Read on to see what rules to follow with regards to creditable coverage, including when to switch from your spouse's private health insurance to Medicare.
The first rule of Medicare and private insurance is an easy one: if you’ve got creditable coverage, you don't need to sign up for Medicare. For a deep dive on creditable coverage, check out our article here Fair Square Medicare
Once you’ve answered the first question, consider whether your insurance will pay primary or secondary.
If your private insurance is paying primary to Medicare
If Medicare pays primary, your health insurance pays secondary and is left to cover whatever Medicare will not. People often elect to sign up for Part A of Medicare
When your spouse's company has 20 or more employees, that’s considered a Group Health Plan (GHP), and your insurance will pay primary. In a Small Group Health Plan (SGHP) with less than 20 employees, your insurance will pay secondary to Medicare, so you need to sign up for Parts A, B, and likely D if Medicare is meant to pay primary.
Note: If you are under 65 and eligible for Medicare due to a disability, the number used to determine primary vs. secondary coverage jumps up to 100 employees. A plan with over 100 employees is considered a Large Group Health Plan (LGHP).
The way your Medicare plan and your GHP might work together to share costs is called the Coordination of Benefits. There are systems in place that work to ensure your healthcare claims are being billed in the right order, but it’s still important for you to know how to apply these rules to your situation in case any claims are disputed. If you have any questions about the Coordination of Benefits for your situation, you can call us at 1-888-376-2028, and you can also call the Benefits Coordination and Recovery Center (BCRC) at 1-855-798-2627.
The same rules apply; if you have creditable coverage through your spouse's private insurance, then you do not need to sign up for a Part D Prescription Drug plan. Other Medicare beneficiaries might incur a Late Enrollment Penalty for either Part B or Part D
Medicare also pays primary to retirement plans.
If you’ve got a retirement plan, your spouse’s GHP, and Medicare, it pays as follows:
1. GHP
2. Medicare
3. Retirement Plan
If your retirement plan includes creditable drug coverage, you have a special enrollment period of 63 days after your coverage ends.
Suppose you have creditable coverage and your plan suits your needs. In that case, you do not need to enroll in Medicare Part B. Talk with your health insurance plan provider for more details about your specific circumstances and your coordination of benefits. For all your Medicare-related questions, we have a team of experts ready to help you get the coverage you need. Give Fair Square Medicare a call at 888-376-2028.

How Much Does Open Heart Surgery Cost with Medicare?
Jan 27, 2023

Saving Money with Alternative Pharmacies & Discount Programs
Feb 1, 2024

How Much Does a Medicare Coach Cost?
Mar 20, 2023

Will Medicare Cover it?
Oct 3, 2023

Is Botox Covered by Medicare?
Jan 19, 2023

Does Medicare Cover Oxybutynin?
Dec 2, 2022

How Does the End of the COVID-19 Public Health Emergency Affect Your Medicare?
Mar 3, 2023

Does Medicare Cover Piqray?
Dec 2, 2022

Does Medicare Cover Medical Marijuana?
Jan 6, 2023

Finding the Best Vision Plans for Seniors
Jan 6, 2023

How Much Does a Pacemaker Cost with Medicare?
Nov 21, 2022

How Do I Sign up for Medicare? A Simple How-To Guide For You
Apr 8, 2022

Can I Choose Marketplace Coverage Instead of Medicare?
May 2, 2023

Does Medicare Cover Hearing Aids?
Nov 9, 2022

Does Medicare Cover Nexavar?
Nov 30, 2022

Does Medicare cover Hyoscyamine?
Nov 30, 2022

Does Medicare Cover Urodynamic Testing?
Dec 2, 2022

Does Medicare Cover Geri Chairs?
Dec 7, 2022
13 Best Ways for Seniors to Stay Active in Philadelphia
14 Best Ways for Seniors to Stay Active in Washington, D.C.
15 Best Ways for Seniors to Stay Active in Denver
2024 Cost of Living Adjustment
2024 Fair Square NPS Report
Building the Future of Senior Healthcare
Can I Change Medicare Advantage Plans Any Time? | Medicare Plans
Can I Use Medicare Part D at Any Pharmacy?
Comparing All Medigap Plans | Chart Updated for 2025
Costco Pharmacy Partners with Fair Square
Do All Hospitals Accept Medicare Advantage Plans?
Do I Need Medicare If My Spouse Has Insurance?
Do Medicare Supplement Plans Cover Dental and Vision?
Does Medicare Cover Cala Trio?
Does Medicare Cover Cold Laser Therapy (CLT)?
Does Medicare Cover Disposable Underwear?
Does Medicare Cover Hepatitis C Treatment?
Does Medicare Cover Hypnotherapy?
Does Medicare Cover Ilumya?
Does Medicare Cover Incontinence Supplies?
Does Medicare Cover Inqovi?
Does Medicare Cover Jakafi?
Does Medicare Cover Kyphoplasty?
Does Medicare Cover Light Therapy for Psoriasis?
Does Medicare Cover Mental Health?
Does Medicare Cover Orthodontic Care?
Does Medicare Cover Ozempic?
Does Medicare Cover PTNS?
Does Medicare Cover Scleral Lenses?
Does Medicare Cover Shock Wave Therapy for Plantar Fasciitis?
Does Medicare Cover TENS Units?
Does Medicare Cover the Urolift Procedure?
Does Medicare Cover the WATCHMAN Procedure?
Does Medicare Cover Vitamins?
Does Medicare Cover Wart Removal?
Does Medicare Cover Xiafaxan?
Does Medicare Pay for Allergy Shots?
Does Medicare Pay for Funeral Expenses?
Does Medicare Require a Referral for Audiology Exams?
Does Retiring at Age 62 Make Me Eligible for Medicare?
Does Your Plan Include A Free Gym Membership?
Estimating Prescription Drug Costs
Fair Square Bulletin: We're Revolutionizing Medicare
Finding the Best Dental Plans for Seniors
Gap Health Insurance: The Secret Sidekick to Your High-Deductible Plan
How Can I Get a Replacement Medicare Card?
How Does Medicare Pay for Emergency Room Visits?
How Medicare Costs Can Pile Up
How Much Does Medicare Cost?
How Much Does Medicare Part A Cost in 2025?
How Much Does Rexulti Cost with Medicare?
How Much Does Xeljanz Cost with Medicare?
Is Balloon Sinuplasty Covered by Medicare?
Is Emsella Covered by Medicare?
Is the Shingles Vaccine Covered by Medicare?
Is Vitrectomy Surgery Covered by Medicare?
Last Day to Change Your Medicare Part D Plan
Medicare 101
Medicare Advantage MSA Plans
Medicare Advantage Plans for Disabled People Under 65
Medicare Guaranteed Issue Rights by State
Moving? Here’s What Happens to Your Medicare Coverage
The Easiest Call You'll Ever Make
What Are Medicare Part B Excess Charges?
What Happens to Unused Medicare Set-Aside Funds?
What Is a Medicare Advantage POS Plan?
What is the 8-Minute Rule on Medicare?
What People Don't Realize About Medicare
What to Do When Your Doctor Doesn't Take Medicare
What to Do When Your Doctor Leaves Your Network
Why Is Medicare So Confusing?
Will Medicare Cover Dental Implants?
Get the Fair Square Bulletin
Medicare savings tips, helpful guides, and more.
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
