Medicare Supplement — what it is, and when it makes sense.

If you remember health insurance before HMOs and PPOs — the days when you went to any doctor, the doctor billed your insurance, and your insurance paid — that's roughly how Medicare Supplement works. You keep Original Medicare (Parts A and B from the federal government), and you add a private "Medigap" policy that pays the deductibles, coinsurance, and copays Original Medicare leaves on you. You also add a stand-alone Part D plan for prescriptions. The combined arrangement gives you the broadest possible doctor choice — any provider in the country that accepts Medicare — with the lowest possible at-claim cost.

The trade-off is up-front. Medicare Supplement premiums are real money — typically $130 to $260 per month in North Carolina for the most-purchased plans (Plan G or Plan N), depending on age, gender, and tobacco use. A stand-alone Part D plan adds another $5 to $80 per month. The total monthly premium is meaningfully higher than a $0-premium Medicare Advantage plan. The trade is straightforward: you pay more every month, and you pay almost nothing when you actually use the system.

For roughly 40% of the clients who walk in our door, that trade is the right trade. The conditions that favor Supplement: you travel or relocate frequently, you have specialists across multiple health systems, you have a chronic condition that requires regular specialist care, you have the cash flow to absorb the higher premium, or you simply value certainty about cost at the time of service over savings on the monthly bill.

What Medicare Supplement includes

Plan G — The Standard

Covers the Part A hospital deductible

Covers the Part A hospital coinsurance and 365 additional days of hospital costs after Medicare benefits are used

Covers the Part B coinsurance (the 20% Original Medicare leaves on you)

Covers the first three pints of blood

Covers Part A hospice care coinsurance

Covers skilled nursing facility coinsurance

Covers Part B excess charges (the difference between what a non-participating Medicare provider bills and what Medicare pays)

Covers 80% of foreign travel emergency care (up to plan limits)

Does NOT cover the annual Part B deductible ($240 in 2026 — you pay this once per year)

Plan N — The Lower-Premium Alternative

Same coverage as Plan G, except:

$20 copay per office visit

$50 copay for ER visits that do not result in admission

Does NOT cover Part B excess charges (rare in NC — most providers accept Medicare assignment)

What Medicare Supplement requires of you

The Trade-offs

You must also have Part B from Medicare ($185/month in 2026, paid to Medicare, not to the Supplement carrier)

You must also enroll in a stand-alone Part D drug plan to avoid the late-enrollment penalty

The monthly Supplement premium is paid to the private carrier

There is no network — any provider that accepts Medicare accepts your Supplement

There is no prior authorization for covered services

Premium increases happen at the rating-class level, not at the individual level

Outside your initial Medigap open-enrollment window (six months from when you first enroll in Part B), carriers can medical-underwrite you in North Carolina

When Medicare Supplement makes sense

If you travel — snowbirds in Florida, RV travelers, frequent visits to family across the country — a Supplement travels with you. Any Medicare-accepting doctor anywhere in the United States is your doctor.

If you have specialists across multiple health systems — a cardiologist at Mission Health, an oncologist at Duke, a primary care doctor at Pardee — no Advantage plan's network can hold all three. A Supplement keeps all three without question.

If you have a chronic condition that involves frequent specialist visits, expensive procedures, or specialty medications, the math frequently favors Supplement. The copays on an Advantage plan in a heavy-utilization year can exceed the premium difference. We model this every fall during AEP for our chronically-ill clients and adjust accordingly.

When Medicare Supplement does NOT make sense

If the monthly premium would meaningfully strain your fixed income, a $0-premium Medicare Advantage plan plus a stand-alone Part D plan may be the right answer despite the copay exposure. We do that math at the table with you using your actual Social Security check and your actual monthly bills.

If you rarely use the system — say one or two doctor visits a year and no chronic conditions — the Supplement premium becomes effectively "insurance against a low-probability event." It's a reasonable bet, but not necessarily the right one for everyone. Some clients prefer the certainty; some prefer the cash in pocket.

If you want supplemental benefits that Supplements never include — dental, vision, hearing, fitness, OTC stipends, transportation — you either need a Medicare Advantage plan that bundles them, or you need to buy them as stand-alone plans (DVH covered on our DVH page). For clients who want all of those benefits and only modest medical use, Advantage can be the cleaner answer.

The trade is real and explicit. With a Supplement you pay more every month and almost nothing when you actually use the system. With an Advantage plan you pay almost nothing every month and pay copays when you use the system. We don't pretend one is universally better. We figure out which one fits you.

Carriers we use for Medicare Supplement

Mutual of Omaha. The most-chosen Medicare Supplement carrier in western North Carolina among Northbrook clients. Strong claims service, predictable rate history, well-priced Plan G across most NC zip codes. Mutual also writes Living Promise Final Expense Life — a frequent companion product.

UnitedHealthcare (AARP-branded). The most-purchased Medicare Supplement in the country. The AARP-branded plans are stable rate-history performers and have a large enough block of business that pricing tends not to surprise. Requires AARP membership ($16/year), which most of our clients already have.

Aetna. Aetna has been writing Medicare Supplements in NC since 1992 and is consistently price-competitive on Plan G and Plan N. Pairs well with Aetna SilverScript Part D.

Cigna. Cigna Healthspring Supplements are well-priced in WNC and increasingly competitive on Plan N specifically. Cigna's claims service has improved meaningfully since 2021.

Anthem BCBS NC. The Blue Cross brand in North Carolina is well-known to clients. NC Blue Plan G and Plan N are price-competitive and the in-state recognition is real — many local providers prefer the Blue Cross processing.

Bankers Fidelity. A smaller carrier with a strong record on Plan G specifically. Premiums are often the lowest of the carriers we represent for a given age/zip code, particularly for clients who can clear the underwriting if outside initial enrollment.

Frequently asked questions