If you are 64 or older in South Carolina, Medicare Advantage can look simple on the surface and complicated once the details show up. Many plans advertise a $0 premium, dental or vision extras, and local doctor access. Those benefits can be real and helpful. The trouble is that the wrong plan can also mean surprise bills, a pharmacy that is not preferred, or a specialist who is suddenly out of network.

With Medicare’s Annual Enrollment Period running from October 15 through December 7, now is a smart time to slow down and review your options before the rush. Changes made during that window generally take effect January 1. In South Carolina, Medicare Advantage remains widely available, with dozens of plans offered across the state and many counties having $0-premium options. Still, “available” does not automatically mean “best for you.”

Below are five common mistakes people make when choosing a Medicare Advantage plan, plus practical ways to avoid them.


Mistake 1: Choosing a Plan Only Because the Premium Is $0

A low or $0 monthly plan premium is attractive, and many South Carolina residents start there for good reason. Premium is only one part of your total cost.

What often matters more is:

  1. Doctor visit copays
  2. Specialist and hospital costs
  3. The plan’s annual out-of-pocket maximum
  4. Prescription drug copays and tiers
  5. Whether your pharmacy is preferred

A $0 premium plan can still cost more over the year if you use care often or take several medications. Before you enroll, estimate what you actually spend: regular doctor visits, known procedures, and monthly prescriptions. Compare total expected costs, not just the premium line on the brochure.


Mistake 2: Assuming Your Doctors and Hospitals Are Automatically Covered

Medicare Advantage plans usually work through networks. That is one of the biggest differences from Original Medicare paired with a Medigap policy.

Before you sign up, confirm:

  1. Your primary care doctor
  2. Specialists you see regularly
  3. Preferred hospitals and outpatient centers
  4. Whether the plan is HMO, PPO, or another type
  5. If referrals or prior authorization are required

This matters across South Carolina, whether you get care in Myrtle Beach, Charleston, Columbia, Greenville, Fort Mill, or smaller communities nearby. Networks can differ by county and by plan. A friend in one ZIP code may have great access on a plan that does not work as well in yours. Call the provider’s office and ask them to verify the exact plan name and year, not just the insurance company brand.


Mistake 3: Skipping a Full Prescription and Pharmacy Check

Many Medicare Advantage plans include Part D drug coverage, but not every drug is covered the same way.

Common problems include:

  1. A medication is not on the formulary
  2. The drug is covered, but on a higher cost tier
  3. Prior authorization or step therapy is required
  4. Your local pharmacy is in network, but not preferred
  5. Mail-order rules change your copay

Make a current medication list with dosages. Check each drug against the plan’s formulary. Then check your pharmacy. Preferred pharmacies can lower what you pay. Also keep an eye on broader drug-cost protections that continue under federal law, including insulin cost limits and an annual cap on out-of-pocket Part D spending. Those protections help, but they do not replace checking your own prescriptions plan by plan.


Mistake 4: Getting Distracted by Extra Benefits Without Reading the Limits

Dental, vision, hearing, over-the-counter cards, fitness memberships, and transportation benefits can add real value. They are also one of the easiest ways people get sold on a plan that does not fit their medical needs.

Ask practical questions:

  1. What is the annual dollar limit for dental?
  2. Are major services like crowns or dentures included, or only cleanings?
  3. How often can I get new glasses or hearing aids?
  4. Is the OTC allowance monthly or quarterly, and where can it be used?
  5. Do I actually need transportation or a gym benefit?

Extras should support a solid core plan, not replace it. If the network, drug list, and medical costs are weak, a larger dental allowance usually will not make up for it.


Mistake 5: Staying on “Last Year’s Plan” Without Reviewing Changes

One of the most expensive habits in Medicare is autopilot.

Every year, plans can change:

  1. Premiums and copays
  2. Provider networks
  3. Drug formularies
  4. Extra benefits
  5. Service areas and plan availability
  6. Star ratings and service performance

Even if you liked your plan this year, review the Annual Notice of Change when it arrives. In South Carolina, plan lineups and benefits can shift from one year to the next. A plan that worked well in 2026 may look different for 2027. Open enrollment is your main chance to compare and adjust before those changes take effect in January.

Also remember: if you leave Medicare Advantage for Original Medicare later, buying a Medigap policy may involve medical underwriting outside guaranteed-issue situations. That is another reason to choose carefully up front.


A Simple Way to Compare Plans Before Open Enrollment

Use this checklist:

  1. List your doctors, hospitals, and pharmacies.
  2. List your prescriptions and doses.
  3. Estimate how often you use care each year.
  4. Compare premium, copays, and out-of-pocket maximum.
  5. Verify drug coverage and preferred pharmacy status.
  6. Review extra benefits only after the basics check out.
  7. Read the plan’s rules on referrals and prior authorization.
  8. Confirm the plan is offered in your South Carolina county.

If you want help, work with a licensed local agent who will compare options based on your doctors, medications, and budget, not just a TV ad or a single mailer.


Final Thoughts for South Carolina Residents

Medicare Advantage can be a strong fit for many people, especially those who want bundled medical and drug coverage and value extra benefits. It is not automatically the right fit for everyone. The best plan is the one that works with your real doctors, real prescriptions, and real budget.

Open enrollment will be here before long. Give yourself time. Ask plain questions. Get answers in writing when you can. And do not let a low premium or a flashy extra benefit decide the whole choice.


If you already have an agent you love and trust, that is wonderful. Stay with them. Good guidance is worth keeping.


If you do not have someone like that, or you simply want a second set of eyes before open enrollment, Wayne Heuman at Palmetto Retirement and Health is glad to help. Wayne takes the time to look at your full situation, answer your questions clearly, and walk through your options with professionalism and no pressure. The goal is not a quick sale. The goal is helping you choose what truly fits your needs and circumstances.


Wayne serves clients across South Carolina, including Myrtle Beach, Charleston, Columbia, Fort Mill, and Greenville. If you would like a clear, respectful review of your Medicare Advantage options, reach out to Wayne at Palmetto Retirement and Health. He is ready to look after your situation the same way he would want someone to look after his own family’s.


Disclaimer note you may want on the page:

This article is for educational purposes and is not personalized insurance advice. Plan availability and benefits vary by county and can change. Review official plan documents and Medicare.gov, or speak with a licensed agent, before enrolling.