Georgia Medigap Open Enrollment Period Guide (2026)

For six months after a Georgia senior turns 65 and enrolls in Medicare Part B, any insurer must sell them any Medigap policy at its best rate, no matter how sick they are. This is the Medigap Open Enrollment Period (Medigap OEP), and once it closes, that guarantee is gone. During the window, beneficiaries have an unconditional federal right to buy any standardized Medigap policy from any carrier licensed in Georgia, with no medical underwriting and no health-based pricing.1

What the Georgia Medigap Open Enrollment Period Is

The Medigap Open Enrollment Period is a one-time, six-month window that begins the first month you are both age 65 or older and enrolled in Medicare Part B. During it, an insurer must sell you any Medigap policy it offers, cannot use medical underwriting to accept or reject you, cannot deny you coverage because of pre-existing health problems, and cannot charge you more because you have health problems.1 This is the single most important Medigap enrollment window in a Medicare beneficiary's lifetime, and it does not repeat every year.

Once the window closes, beneficiaries seeking Medigap coverage in Georgia face medical underwriting in most circumstances, and may be:

• Denied coverage entirely for serious pre-existing conditions
• Charged substantially higher premiums based on health history
• Limited in which plan letters or carriers will accept them

Missing the Medigap OEP, or using it without thorough comparison, can mean either lost access to comprehensive supplement coverage or being locked into a more expensive plan than necessary for the next several decades of Medicare coverage.

The federal law behind the window

The Medigap OEP and its protections rest on a federal statutory and regulatory framework that Georgia, like every state, must at minimum follow:

• The six-month open enrollment window is set by federal Medigap regulation at 42 CFR 411.170. It begins the first month a beneficiary is both age 65 or older and enrolled in Part B, and during it insurers cannot deny issuance, discriminate in pricing based on health status, or refuse to sell any plan they offer.1
• Pre-existing condition limits during and around the window are governed by 42 CFR 411.171: an insurer may apply at most a six-month waiting period, reduced by prior creditable coverage.
• Guaranteed-issue rights outside the OEP (trial rights, loss of other coverage, plan termination) come from 42 CFR 411.172.
• Plan standardization groups benefits into letter-designated plans (A-D, F, G, and K-N; Plans E, H, I, and J are no longer sold), so every policy with the same letter offers the same basic benefits regardless of carrier or state.2
• Plan C and Plan F restrictions under the Medicare Access and CHIP Reauthorization Act of 2015 (MACRA) close those two plans to anyone first eligible for Medicare on or after January 1, 2020.1

Georgia regulates Medigap through the Georgia Office of Commissioner of Insurance and Safety Fire and adds no state birthday rule or annual guaranteed-issue window on top of this federal floor.3

Why the Georgia Medigap Open Enrollment Period Matters

Georgia beneficiaries face a specific set of stakes during their window:

Georgia has no birthday rule. A number of states (California, Idaho, Maryland, and others) give existing Medigap policyholders an annual guaranteed-issue window to switch plans without underwriting. Georgia does not.4 That makes the federal six-month OEP the one universal chance most Georgians get to buy Medigap without a health screen; after it closes, switching plans generally means underwriting.3

Standardized plans simplify comparison. All carriers offering Plan G in Georgia offer the same Plan G benefits.2 The differences among carriers are price, customer service, financial stability, and rating method, not benefit details.

Multiple carriers compete in Georgia. During the OEP, beneficiaries have meaningful competition among carriers such as Mutual of Omaha, AARP/UnitedHealthcare, Cigna, Aetna, Humana, and many others (an illustrative list, not an endorsement or a complete roster). Verify who sells which plan in your county on the Medicare.gov Medigap Plan Finder.

Plan G is what Plan F became after 2020. Plan F is closed to anyone who first became eligible for Medicare on or after January 1, 2020, and Plan G covers the same benefits as Plan F except the annual Part B deductible, so post-2020 buyers reach the same coverage through a different letter.1

Pre-existing condition timing matters. Even during the OEP, an insurer can apply a six-month pre-existing condition waiting period unless you had continuous prior creditable coverage.1 Coordinating employer coverage with your Medigap start date can eliminate that wait.

For help specific to Georgia, GeorgiaCares SHIP provides free Medigap counseling at 1-866-552-4464,5 and the Georgia Office of Commissioner of Insurance and Safety Fire handles Medigap complaints.

The Medigap OEP Six-Month Window

The Medigap OEP is a six-month window that begins on the first day of the first month the beneficiary is BOTH:

1. Age 65 or older, AND
2. Enrolled in Medicare Part B

Whichever condition is met later triggers the start of the window.1

Typical scenarios:

Scenario A: Turning 65 and enrolling at 65. A beneficiary turns 65 on April 15 and enrolls in Part B effective April 1. The Medigap OEP runs April 1 through September 30.

Scenario B: Delaying Part B due to employer coverage. A beneficiary turns 65 on April 15 but keeps employer coverage and delays Part B. She retires at 67 and enrolls in Part B effective March 1 via a Special Enrollment Period. The Medigap OEP runs March 1 through August 31, six months from the Part B effective date, not the 65th birthday.

Scenario C: On Medicare via disability before 65. A beneficiary on Medicare through Social Security Disability Insurance (SSDI) since age 50 turns 65 on April 15 and is already enrolled in Part B. The federal Medigap OEP at age 65 runs April 1 through September 30, regardless of the prior disability-based enrollment. (Georgia does not require insurers to offer a separate under-65 Medigap OEP.)

Scenario D: Returning to Part B after opting out. A beneficiary who dropped Part B for employer coverage and later returns to Part B effective March 1 does not get a fresh OEP if the age-65-plus-Part-B window was already used. It is one six-month window per lifetime under this trigger.

Key point: The federal Medigap OEP triggered at age 65 plus Part B is one-time and final. Beneficiaries get one six-month window per lifetime under this trigger.

Your Protections During the Medigap OEP

During the Medigap OEP, federal law guarantees four protections:1

1. No medical underwriting. The insurer cannot review your medical history, require a physical exam, ask health questions to decline you, or use health information to charge a higher premium.

2. No pre-existing condition exclusions, with one limited exception. Generally, insurers cannot exclude or limit coverage for pre-existing conditions during the OEP. The one exception under 42 CFR 411.171: a six-month waiting period may apply to conditions for which medical advice was given or treatment was received in the six months immediately before the policy effective date. Continuous prior creditable coverage (employer plan, Medicare Advantage, retiree health, and similar) reduces or eliminates this waiting period, and many insurers waive it during the OEP as a marketing advantage.1

3. The insurer must sell. If you apply during the OEP for any standardized plan the insurer offers in Georgia, it must issue the policy.

4. No health-based pricing. The insurer cannot charge you more because you have health problems, so you get the same rate as a similarly situated healthy beneficiary buying the same plan letter from the same insurer in the same county at the same age. That is not a promise of the lowest price on the market: premiums still differ between carriers and between rating methods, so comparing quotes still matters.1

These protections are federal and apply in every state. Georgia layers no additional guaranteed-issue rules on top of the federal floor.3

Standardized Plan Letters

Medigap plans are federally standardized into letter categories. Every carrier offering a particular letter plan must offer the same basic benefits for that letter.2

Plan C and Plan F restrictions. Under MACRA, Plans C and F are closed to beneficiaries first eligible for Medicare on or after January 1, 2020. Beneficiaries eligible before 2020 can still hold existing Plan C or F policies or, where available, buy new ones. Plan G is the post-2020 equivalent of Plan F minus the Part B deductible coverage.1

The plans worth comparing at 65 in Georgia:

• Plan G covers everything Original Medicare leaves except the annual Part B deductible ($283 in 2026); it is the closest post-2020 substitute for the now-closed Plan F.2,1,6
• Plan N pays 100% of the Part B coinsurance but adds a copayment of up to $20 for some office visits and up to $50 for emergency-room visits that do not lead to inpatient admission; it carries a lower premium and does not cover Part B excess charges.2
• High-Deductible Plan G carries a much lower premium but requires you to pay Medicare-covered costs up to an annual deductible of $2,950 in 2026 before the policy pays; it is attractive to healthy beneficiaries comfortable with that risk.2

Premiums for any plan letter vary widely by carrier, age, and rating method and are set by insurers, not by Medicare, so compare current quotes for your county on the Medicare.gov Medigap Plan Finder rather than relying on any single advertised figure.6

Pre-Existing Condition Waiting Period

During the Medigap OEP, federal law allows insurers to apply a limited pre-existing condition waiting period.1

The six-month waiting period:

• Applies to conditions for which medical advice was given or treatment was recommended or received in the six months immediately before the policy effective date
• During the waiting period, the Medigap policy does not cover services related to the pre-existing condition, though Original Medicare still covers them
• Is capped at six months under 42 CFR 411.171

Reducing or eliminating the waiting period:

• Continuous prior creditable coverage reduces the waiting period by the length of that prior coverage
• Creditable coverage includes employer group health, COBRA, Medicare Advantage, retiree health, HMO/PPO, and military/VA coverage
• If prior creditable coverage was continuous for six or more months immediately before Medigap, the waiting period is fully eliminated
• Many insurers voluntarily waive the waiting period during the OEP as a marketing advantage1

Practical implications for Georgia beneficiaries:

• New-65 beneficiaries with continuous employer coverage immediately before retirement: waiting period likely eliminated
• New-65 beneficiaries with a gap in coverage before Medicare: a six-month waiting period may apply
• During any waiting period, you still have Original Medicare coverage, just no Medigap supplement for pre-existing condition services

Medigap OEP vs Other Medigap Enrollment Pathways

The Medigap OEP is the primary enrollment pathway, but not the only one. The key distinctions:

Federal Medigap OEP (the focus of this guide): a one-time six-month window at age 65 plus Part B, universal guaranteed issue, no qualifying event required. It is the best opportunity for most beneficiaries.1

Federal guaranteed-issue triggers under 42 CFR 411.172:

• Trial right: a first-time Medicare Advantage enrollee can return to Original Medicare plus Medigap within the federal trial period with guaranteed issue
• Trial right (returning): a Medigap holder who dropped it to try Medicare Advantage can return to the original Medigap within the federal trial period
• Your Medicare Advantage plan terminates or leaves the service area
• Your Medigap carrier becomes insolvent
• You move out of your Medicare Advantage service area
• You lose other coverage through no fault of your own (for example, an employer plan terminates)

State-level guaranteed-issue rules (Georgia): Georgia does not have a state birthday rule or anniversary rule, and follows the federal floor without major state-level additions.4,3

Underwriting outside the OEP and trial rights: Most Georgia Medigap purchases outside the OEP face medical underwriting. Insurers can decline coverage for serious pre-existing conditions and charge higher premiums based on health, and underwriting questions typically address heart disease, diabetes, cancer, kidney disease, stroke, and COPD. This is why the OEP is so consequential.

Georgia Medigap Marketplace

Carrier landscape. Many insurance carriers offer Medigap plans in Georgia, including Mutual of Omaha, AARP/UnitedHealthcare, Cigna, Aetna, Humana, Bankers Life, Manhattan Life, Bankers Fidelity, Equitable, and others. This is an illustrative sample, not a complete or endorsed roster; confirm which carriers sell which plan in your ZIP code on the Medicare.gov Medigap Plan Finder.

Rating methods. Carriers price standardized plans using one of three methods:

• Community-rated: the same premium for all enrollees regardless of age; a higher initial premium but slower increases over time
• Attained-age-rated: based on your current age; a lower initial premium for new-65 beneficiaries that rises as you age
• Issue-age-rated: locked to your age at purchase; rises with inflation but not with your personal aging

Georgia does not allow all three. State regulation bars a carrier from filing an attained-age rate structure for any Medicare supplement policy issued after the rule's September 2009 amendment, which reaches essentially every policy sold in Georgia today, so a new Georgia policy should be community-rated or issue-age-rated. Georgia does not go on to require issue-age rating; it prohibits one structure rather than mandating another. If a Georgia quote is priced to rise as you age, ask the carrier in writing which structure the policy uses.3 Whatever the method, evaluate not just today's premium but the expected premium trajectory over decades.

Plan availability. Georgia offers the federally standardized plans (A, B, C, D, F, G, K, L, M, N), with Plan C available only to pre-2020 eligibles; not every carrier offers every plan letter.3

Premium variation. For the same Plan G in Atlanta, premiums can vary meaningfully across carriers even though the benefits are identical, and metro premiums generally run higher than rural Georgia. Because carriers, not Medicare, set these premiums, always compare current quotes on the Plan Finder for your own county.6

Best Practices for Georgia Beneficiaries Using the Medigap OEP

1. Don't miss the OEP. Start shopping two to three months before turning 65 or before your Part B effective date so you can decide early in the window.
2. Understand standardization. Plan G from Insurer A has the same benefits as Plan G from Insurer B. Compare on price, customer service, and financial stability, not benefit details.
3. Get quotes from multiple carriers. In Georgia that means comparing community-rated against issue-age-rated structures, since attained-age structures cannot be filed for new policies.
4. Compare Plan G, Plan N, and High-Deductible Plan G. These are typically the most relevant choices for new-65 beneficiaries post-2020.
5. Consider total expected cost over decades. Premium plus cost-sharing plus premium trajectory. A low initial premium that climbs sharply may be worse than a higher one that stays stable.
6. Verify the carrier's rating method and its long-term implications.
7. Check carrier financial strength (AM Best, Standard & Poor's, Moody's). You want stability over decades.
8. Use GeorgiaCares SHIP for free, unbiased counseling; SHIP counselors do not sell insurance.5
9. Watch for waiting-period clauses and provide evidence of prior continuous creditable coverage to reduce or eliminate them.
10. Don't pair Medigap with Medicare Advantage. They are mutually exclusive.
11. Be cautious about switching Medigap outside the OEP. Switching outside the OEP or a federal guaranteed-issue trigger faces underwriting in Georgia.
12. Understand Plan C and Plan F restrictions if you are newly eligible after 2020; Plan G is the equivalent.
13. Read the policy carefully before signing. Medigap is a long-term commitment.
14. Report Medigap fraud to the Georgia Office of Commissioner of Insurance or the Georgia Senior Medicare Patrol.

Common Issues Georgia Beneficiaries Face with the Medigap OEP

1. "I missed my Medigap OEP." Outside the OEP, most Medigap purchases face underwriting. Federal trial rights or guaranteed-issue triggers may help. Consult GeorgiaCares SHIP.
2. "I'm on Medicare via disability under 65, can I get Medigap?" Federal law does not require insurers to offer Medigap to under-65 beneficiaries, and Georgia does not mandate it. Some carriers offer it voluntarily, often at higher rates.
3. "I have Plan F, can I keep it?" Yes, if you were first eligible for Medicare before January 1, 2020. Plan F holders can keep their plans indefinitely.1
4. "Should I switch from Plan F to Plan G?" Possibly. Plan G is similar minus the Part B deductible; compare the premium difference against the deductible savings. Switching outside the OEP faces underwriting unless a guaranteed-issue trigger applies.
5. "My carrier raised my premium significantly." Premium increases happen, especially with attained-age-rated plans. You can compare other carriers, but switching outside the OEP faces underwriting.
6. "I'm being denied for pre-existing conditions." During the OEP you cannot be denied. After the OEP you may be. Check whether a federal trial right or guaranteed-issue trigger applies.
7. "My broker recommends a specific carrier." Brokers may have commission incentives. Get independent counsel from GeorgiaCares SHIP before committing.
8. "Does Medigap cover dental, vision, or hearing?" No. Standardized Medigap plans do not include these; some carriers sell separate products.
9. "What if my Medigap carrier goes bankrupt?" The Georgia Life and Health Insurance Guaranty Association provides a limited backstop, and insolvency typically triggers a guaranteed-issue right to switch carriers.
10. "Can I cancel Medigap?" Yes, anytime. But re-acquiring later faces underwriting unless you are in the OEP or under a guaranteed-issue trigger.

(Questions about Plan G versus Plan N, High-Deductible Plan G, Medicare Advantage, and Part D drug coverage are answered in the FAQ below.)

Worked Examples

Example 1: Margaret, Fulton County, Turning 65

Margaret, age 65, lives in Atlanta (Fulton County) and turns 65 on April 15. She enrolls in Medicare Part A and Part B effective April 1, so her Medigap OEP runs April 1 through September 30.

Margaret starts shopping in February. She reviews the ten standardized plan letters and learns that Plan F is closed to her and that Plan G matches Plan F's benefits apart from the Part B deductible, calls GeorgiaCares SHIP for unbiased counsel, and gets Plan G quotes from several carriers in her ZIP code (verifying current quotes on the Medicare.gov Medigap Plan Finder). She reviews each carrier's rating method and current AM Best financial-strength rating, then picks a competitively priced Plan G backed by a strong rating with a reasonable expected premium trajectory. She has no waiting period because she had continuous employer coverage immediately before retirement.

Example 2: James, DeKalb County, Retiring at 67

James, age 67, lives in DeKalb County and kept employer health coverage past 65. He retired in February and enrolls in Medicare Part B effective March 1 via the Special Enrollment Period for losing employer coverage. His Medigap OEP runs March 1 through August 31, six months from his Part B effective date, not his 65th birthday.

GeorgiaCares SHIP confirms he has full guaranteed-issue rights and no pre-existing condition waiting period thanks to his continuous employer coverage. James, relatively healthy and expecting predictable needs, compares Plan G and Plan N and selects Plan N at a lower premium with office and ER copays.

Example 3: Robert, Cobb County, Plan G vs Plan N

Robert, age 65, lives in Cobb County and is in his Medigap OEP, deciding between Plan G and Plan N. Plan G runs at a higher monthly premium because Plan N shifts some cost from premium to point-of-care copays.

GeorgiaCares SHIP explains the trade-offs: Plan G covers everything except the Part B deductible, while Plan N also excludes the Part B deductible and adds office-visit and ER-visit copays (unless admitted) plus possible Part B excess charges. Robert estimates about eight office visits and one ER visit a year, with minimal excess charges because most Cobb County providers accept assignment. He selects Plan N, comfortable with the copays for a modestly lower expected annual cost.

Example 4: David, Bibb County, Pre-Existing Conditions During OEP

David, age 65, lives in Macon (Bibb County) with controlled type 2 diabetes and a history of hypertension. He turned 65 in March, enrolled in Part B effective March 1, and is in his Medigap OEP.

David worries his conditions will affect his options. GeorgiaCares SHIP reassures him that during the OEP insurers cannot underwrite or deny based on health, so he gets the same Plan G rate as a healthy 65-year-old male in Macon.1 Because he had continuous employer coverage immediately before retirement, the six-month pre-existing condition waiting period is eliminated. He applies for Plan G with multiple carriers, gets competitive quotes, and his diabetes and hypertension are fully covered immediately.

Georgia Medigap Resources

Learn More

Find personalized help navigating your Medigap Open Enrollment Period in Georgia at brevy.com.

The information on Brevy.com is for educational purposes only and is not a substitute for professional legal, financial, or medical advice. Rules vary by state and program and change frequently. Always verify with the relevant agency or a qualified professional. Brevy is not a law firm, financial advisor, or healthcare provider.