Medicare Supplement Insurance, also called Medigap, works with Original Medicare to help pay certain deductibles, coinsurance, and copayments. Plans are standardized by letter, but premiums, carrier availability, underwriting rules, and customer service can differ. For South Florida residents, the best time to buy is usually the six-month Medigap Open Enrollment Period that begins when you are 65 or older and enrolled in Medicare Part B.
Original Medicare provides broad hospital and medical coverage, but it does not set an annual limit on a beneficiary’s out-of-pocket costs. Medigap can reduce some of those cost-sharing gaps. South Florida residents should compare plan benefits, premiums, enrollment rights, prescription coverage, and provider flexibility.
iWill Advisors helps Medicare beneficiaries and their families compare Medicare options from multiple insurers represented by the agency. Its Coral Springs office serves as a local resource for people evaluating Medicare Supplement Plans, Medicare Advantage, and prescription drug coverage.
What Is Medicare Supplement Insurance?
Medigap is private insurance that supplements Original Medicare Part A and Part B. After Medicare pays its approved share of a covered service, the Medigap policy may pay some or all of the remaining eligible cost-sharing, depending on the plan letter.
Medigap does not replace Original Medicare. A buyer generally must have Part A and Part B, continue paying the Part B premium, and pay a separate premium to the Medigap insurer.
Medigap policies sold in Florida use the same federal standardized plan letters used in most states: A, B, C, D, F, G, K, L, M, and N. Policies with the same letter provide the same standardized medical benefits regardless of the insurer. However, not every company offers every plan, and premiums can vary considerably for the same plan letter.
What Do Medigap Plans Cover?
Every standardized Medigap plan includes at least some protection for core Original Medicare cost-sharing. Depending on the plan, benefits may include:
- Medicare Part A hospital coinsurance and additional hospital days after Medicare benefits are used
- Medicare Part B coinsurance or copayments
- The first three pints of blood used in an approved medical procedure
- Part A hospice care coinsurance or copayments
- Skilled nursing facility care coinsurance
- The Medicare Part A deductible
- Medicare Part B excess charges
- Limited foreign travel emergency coverage
The exact combination depends on the plan letter. Certain plans also provide limited foreign travel emergency protection.
What Does Medigap Not Cover?
Medigap is not comprehensive coverage for every health or senior-care expense. Policies generally do not cover:
- Long-term custodial care or nursing home residence
- Routine dental or vision care
- Hearing aids
- Eyeglasses
- Private-duty nursing
- Routine prescription drug coverage
Medigap policies sold after 2005 do not include prescription drug coverage. Beneficiaries can consider a separate Part D plan. Long-term care insurance is also separate from Medigap.
How Do the Main Medigap Plan Options Compare?
Although ten standardized plan types exist, many shoppers begin by comparing Plans G and N. Plan F remains relevant for people who were eligible for Medicare before January 1, 2020.

Other standardized plans may also be available. Compare the premium with the costs the policy leaves to the beneficiary; the lowest premium is not always the lowest total cost.
When Is the Best Time to Buy a Medigap Policy?
For most people, the strongest buying opportunity is the six-month Medigap Open Enrollment Period. It begins the first month the person is both 65 or older and enrolled in Medicare Part B.
During this one-time period, an insurer cannot deny an applicant one of the Medigap policies it sells or charge more because of current or past health problems. This is different from Medicare’s annual Open Enrollment Period. The Medigap window does not repeat every year.
After the six-month period ends, a person may still apply, but the insurer may use medical underwriting unless the applicant has a guaranteed issue right or another protection under federal or Florida law. The insurer may deny the application, offer fewer choices, or charge a different premium as permitted by law.
Guaranteed Issue Rights
Guaranteed issue rights may apply after losing certain coverage or during an applicable Medicare Advantage trial right. Deadlines and available plans vary, so keep coverage notices and review options before existing coverage ends.
Can Floridians Under 65 Buy Medigap?
Yes. Florida provides Medigap enrollment rights to Medicare beneficiaries under age 65 who qualify for Medicare because of disability or End-Stage Renal Disease.
After enrolling in Part A and Part B, an eligible Floridian under 65 receives a six-month Medigap open enrollment period. Insurers selling Medigap in Florida must offer policies to this group, although rates may be higher than age-65 rates. A new open enrollment opportunity begins upon turning 65.
How Are Medigap Premiums Set in Florida?
Florida requires Medicare Supplement policies to be sold on an issue-age basis. The applicant’s age when the policy is purchased helps establish the rating basis, and the premium does not increase simply because that individual gets older.
Premiums can still change because of approved class-wide increases tied to inflation, claims experience, or Medicare benefit changes. Applying with a different insurer later may also use the age reached at the new application.
When comparing quotes, review:
- The same plan letter across available insurers
- The monthly premium and available discounts
- The insurer’s rate history and customer service
- Whether underwriting or a high-deductible option applies
Medigap vs. Medicare Advantage: What Is the Difference?
Medigap and Medicare Advantage are not two versions of the same product.

Medigap and Medicare Advantage cannot be used together. Confirm disenrollment timing and Medigap eligibility before changing coverage.
How to Compare Medicare Supplement Plans in South Florida
- Confirm eligibility and timing. Identify the Part B effective date, Medigap open enrollment window, and any guaranteed issue right.
- Choose the benefit level first. Compare plan letters based on acceptable premiums and out-of-pocket exposure.
- Compare the same letter across insurers. Standardized benefits are the same, but premiums, discounts, service, and rate history can differ.
- Review prescription coverage separately. Compare Part D options based on medications, pharmacies, formulary rules, and total annual cost.
- Consider future flexibility. Switching later may require medical underwriting, so do not assume another policy will always be available.
- Verify every quote. Confirm the premium, effective date, underwriting, and application conditions before canceling existing coverage.
How a Medicare Insurance Agency in South Florida Can Help
A Medicare Insurance Advisor can organize available quotes, explain enrollment rights, compare Medigap with Medicare Advantage, and review separate drug coverage needs.
iWill Advisors provides Medicare solutions for South Florida seniors from its Coral Springs office. The agency compares options from multiple insurers it represents and helps beneficiaries understand premiums, benefits, provider considerations, and enrollment timing.
Frequently Asked Questions About Medigap
Can I buy Medigap while enrolled in Medicare Advantage?
No. Medigap supplements Original Medicare and cannot be used with Medicare Advantage. A person planning to leave Medicare Advantage should confirm when the Advantage coverage will end and whether a Medigap guaranteed issue or trial right applies before changing coverage.
Can I switch Medigap plans at any time?
You may apply at any time, but acceptance is not always guaranteed. Outside Medigap Open Enrollment or a guaranteed issue situation, the insurer may use medical underwriting. Do not cancel an existing policy until the new application is approved and the effective date is confirmed.
Does Medigap include prescription drug coverage?
No. Medigap policies sold after 2005 do not include prescription drug coverage. Beneficiaries using Original Medicare and Medigap can consider a separate Medicare Part D plan. Drug plans should be reviewed independently because formularies, pharmacies, premiums, and medication costs vary.
Does Medigap cover long-term care?
No. Medigap generally does not cover long-term custodial care, assisted living residence, or private-duty nursing. Families concerned about future care expenses should evaluate long-term care insurance options separately.
Will a Plan G from one insurer cover more than Plan G from another?
No. The standardized medical benefits of Plan G are the same regardless of the insurer. The premium, discounts, customer service, application experience, and future approved rate changes may differ, which is why comparing the same plan letter across companies is important.
Is Plan N always less expensive than Plan G?
Not necessarily. Plan N may have a lower premium in some comparisons, but the beneficiary accepts certain office and emergency-room copayments and possible Part B excess charges. Compare total expected costs rather than premium alone.
Compare Medigap Options With iWill Advisors
iWill Advisors can help South Florida beneficiaries compare Medicare Supplement Plans, premiums, enrollment timing, and related Part D needs.
Call 954-753-8080 or schedule a Medicare consultation with iWill Advisors. The agency’s Coral Springs office can assist in English, Spanish, or Creole.



