Medicare Advantage Open Enrollment - Grey Cardinal Insurance Group

Written by Spencer Grey | Jun 18, 2026 8:21:24 AM

If you're enrolled in a Medicare Advantage plan in Hilton Head, Bluffton, Beaufort, or Charleston, you have until March 31, 2026 to make changes during the Medicare Advantage Open Enrollment Period. This matters more than ever: approximately 10% of Medicare Advantage enrollees nationwide (2.9 million people) were forced to find new plans in 2026 after insurers exited markets, and total plan value declined by more than 7% compared to 2025. 

Grey Cardinal Insurance Group is an independent Hilton Head-based brokerage serving Lowcountry residents with personalized Medicare guidance. We represent multiple carriers and can help you compare the specific plans available in your county—whether you're in Beaufort County, Jasper County, or the Charleston metro. This guide explains what changed in 2026, which plan types work best for different situations, and how to evaluate your options before the March 31 deadline. 

Understanding Medicare Advantage Plans

Medicare Advantage plans, or Part C, are an alternative to Original Medicare. Offered by private insurers approved by Medicare, these plans cover Part A (hospital insurance) and Part B (medical insurance), often adding benefits like vision and dental care. Unlike Original Medicare, managed by the federal government, these plans provide more comprehensive coverage through private insurers.

Benefits of Medicare Advantage Plans

Medicare Advantage plans offer several benefits over traditional Medicare, making them an attractive option:

Feature

Medicare Advantage

Original Medicare + Medigap

Original Medicare Only

Out-of-pocket maximum

Yes, capped annually

No annual cap, but Medigap covers most cost-sharing

No cap; you pay 20% coinsurance indefinitely

Prescription drug coverage

Often included (MA-PD plans)

Requires separate Part D plan

Not included; requires Part D

Dental, vision, hearing

Included in 98%+ of plans (2026)

Not covered by Medigap

Not covered

Provider network

Restricted to network (HMO) or preferred network (PPO)

Any provider accepting Medicare

Any provider accepting Medicare

Fitness/wellness benefits

Often included (gym memberships, OTC allowances)

Not included

Not included

Premium

 

Often $0 beyond Part B premium

Part B premium + Medigap premium ($100–$400/month)

Part B premium only ($174.70/month in 2024)

 

  • Prescription Drug Coverage:  In 2026, the average Medicare beneficiary can choose from 32 Medicare Advantage plans with prescription drug coverage, with most offering zero-premium options beyond the standard Part B premium. 
  • Cost Savings:  Medicare Advantage plans include an annual out-of-pocket maximum (a protection not offered by Original Medicare without supplemental coverage), and rebate payments to plans averaged more than $2,600 per enrollee in 2026—funds that insurers use to reduce premiums and cost-sharing. 
  • Wellness Programs: Some plans offer fitness memberships and wellness programs to support a healthy lifestyle.
  • Coordinated Care: Better health outcomes through coordinated care services.
  • Plan satisfaction:  Customer satisfaction with Medicare Advantage plans scored 623 on a 1,000-point scale in 2025 (down from 652 in 2024), with trust, coverage needs, and administrative challenges cited as primary concerns. Approximately 62% of Medicare Advantage enrollees were in plans rated 4 stars or higher by CMS in 2025, though plan ratings don't guarantee network fit or formulary coverage for your specific medications. 
  •  Enrollment growth context: As of February 2026, just over 35 million Americans are enrolled in Medicare Advantage, representing 54% of eligible Medicare beneficiaries. However, enrollment growth slowed to 3% in 2026 (down from 4% in 2025), and the number of available plans decreased by 1.3% as insurers exited unprofitable markets. Special Needs Plans (SNPs) accounted for 83% of all enrollment gains, while general enrollment plans saw minimal growth. 

For a detailed comparison, visit Medicare's official comparison page.

Comparing Medicare Advantage Plans in the Lowcountry for 2026

When choosing a Medicare Advantage plan in the Lowcountry, consider these factors:

  • Network Providers: Ensure your preferred doctors and hospitals are in the plan’s network.
  • Plan Ratings: Medicare rates plans based on quality. Higher-rated plans often provide better services.

Understanding your health needs and financial situation is crucial. Compare plans to find the best value for your coverage.

How to Compare 2026 Medicare Advantage Plans

Choosing the right plan can be daunting, but breaking it down into steps can help:

  1. Identify Your Needs: Consider your most frequent medical services, such as doctor visits or medications.
  2. Evaluate Costs: Look beyond premiums to consider co-pays, deductibles, and out-of-pocket maximums.
  3. Check Coverage Options: Ensure the plan covers necessary services, including vision and dental.
  4. Assess Provider Networks: Confirm your doctors and hospitals are in-network.
  5. Use Online Tools: Medicare’s Plan Finder tool offers detailed comparisons of costs and coverage. Visit Medicare.gov for more information.

Following these steps ensures you select a plan that fits your healthcare needs and budget.

Signing Up for Medicare Advantage

Enrolling in a Medicare Advantage plan is crucial for securing your healthcare coverage. Here’s how to sign up:

Enrollment Period

Dates

Who Can Use It

What You Can Do

Annual Enrollment Period (AEP)

October 15–December 7

All Medicare beneficiaries

Switch from Original Medicare to Medicare Advantage; switch between Medicare Advantage plans; switch between Part D plans; drop coverage

Medicare Advantage Open Enrollment Period (MA OEP)

January 1–March 31

Only people already in a Medicare Advantage plan

Switch to a different Medicare Advantage plan; drop Medicare Advantage and return to Original Medicare; add a Part D plan if returning to Original Medicare

Initial Enrollment Period (IEP)

3 months before through 3 months after turning 65

People newly eligible for Medicare

Enroll in Medicare Parts A and B; join a Medicare Advantage plan; enroll in Part D

Special Enrollment Period (SEP)

Varies by qualifying event

People with qualifying life events (moving, losing coverage, etc.)

Join, switch, or drop plans based on the qualifying event

 

  • Enrollment Periods: The Open Enrollment Period runs from January 1 to March 31 each year.
  • Gather Information: Have your Medicare number and Part A and B start dates ready.
  • Research Plans: Explore different plans to understand benefits and costs. For personalized advice, contact Grey Cardinal Insurance Group.
  • Enroll Online or By Phone: You can enroll through the plan’s website or by calling Medicare.
  • Note Deadlines: Missing the enrollment period may require waiting until the next year unless you qualify for a Special Enrollment Period.

By preparing ahead, you can smoothly sign up for a plan that suits your needs.

Types of Medicare Advantage Health Plans

Medicare Advantage offers several plan types to suit various needs:

Plan Type

Provider Network

Referrals Required

Out-of-Network Coverage

Best For

HMO (Health Maintenance Organization)

Must use in-network providers

Yes, typically required for specialists

No (except emergencies)

People who want lower premiums and have preferred doctors in-network

PPO (Preferred Provider Organization)

Flexibility to use out-of-network providers

No referrals needed

Yes, at higher cost

People who want provider flexibility and don't mind higher premiums

PFFS (Private Fee-for-Service)

Any Medicare-approved provider that accepts plan terms

No referrals needed

Varies by provider acceptance

People who want flexibility but may have limited plan availability

 

For more on these plans, see Understanding Medicare Advantage Plans by the Commonwealth Fund.

Making the Right Choice with Advantage Medicare Insurance

Selecting the best plan involves careful consideration:

  • Assess Your Needs: Consider your health status and regular treatments to determine coverage level.
  • Evaluate Options: Compare plans based on coverage, cost, and flexibility. For insights, visit Medicare Advantage Plan Cost and Coverage.
  • Check Networks: Ensure your preferred providers are in-network.
  • Seek Expert Advice: Contact Grey Cardinal Insurance Group for personalized guidance.

Choosing the right plan can be complex, but with the right support, you can find the best value and peace of mind. For more guidance, check out Navigating Medicare Health Coverage.