Medicare Supplement

Shopping Medigap in Chattanooga: how the same Plan G can price very differently

Chattanooga shoppers who sit down to price a Medicare Supplement policy often run into the same puzzle: two insurers are selling what looks like the exact same plan, but the quotes don't match. That's not a mistake, and it isn't because one company's coverage is "better." In Tennessee, roughly 30 insurers are licensed to sell Medigap, and the way each one prices, discounts and underwrites a policy is where the real differences show up.

Medicare SupplementChattanooga, TN

This guide walks through how to compare the same plan letter across those insurers — what to look at beyond the sticker — using Medicare.gov's Medigap policy search and the Tennessee Department of Commerce and Insurance rate guide.

Which insurers sell Medigap in Tennessee

Chattanooga is in Hamilton County, and Medigap in Tennessee is regulated at the state level, so the same roster of insurers is available to Chattanooga residents as to anyone else in the state. The table below lists every insurer and the plan letters each one files in Tennessee.

The list is long — around 30 companies — and includes national names like AARP – UnitedHealthcare Insurance Company, Mutual of Omaha (Omaha Supplemental Insurance Company), Humana (Humana Benefit Plan of Illinois, Inc.), Aetna's Continental Life Insurance Company of Brentwood, Tennessee, State Farm Mutual Automobile Insurance Company, USAA Life Insurance Company and BlueCross BlueShield of Tennessee, along with regional carriers like Farm Bureau Health Plans and specialty issuers like Bankers Fidelity Assurance Company and Medico Insurance Company.

Not every insurer offers every plan letter. For example, Farm Bureau Health Plans files Plans A, D, G and N in Tennessee, while United American Insurance Company files a broader set including A, B, C, D, F, F-HD, G, G-HD, K, L and N. That matters when you've decided on a specific letter — your first filter is "who even sells it."

The most important rule: a plan letter is a plan letter

Federal law standardizes Medigap. A Plan G at one insurer covers the same things a Plan G at another insurer covers. A Plan N is a Plan N. The benefits do not change from company to company.

That's why premium is the biggest thing that varies — along with a few service-side details like billing options and household discounts. If a salesperson tells you their Plan G "covers more," that's a red flag worth checking against Medicare.gov.

How insurers price the same plan differently

Three pricing methods are allowed, and Tennessee insurers use all three:

• Attained-age rated. The premium is based on your current age and goes up as you get older. It often starts lower at 65 and climbs over time.
• Issue-age rated. The premium is based on how old you were when you bought the policy. It doesn't go up just because you have a birthday, though it can still increase for other reasons.
• Community-rated (no-age-rated). Everyone in the state who has that plan pays roughly the same premium regardless of age.

All three methods can also rise due to inflation, medical cost trend and the insurer's overall claims experience. That's why rate history — how much a carrier has raised premiums over the last several years — matters as much as today's quote. The Tennessee Department of Commerce and Insurance publishes rate filings you can review before you commit.

Household discounts and underwriting

Two other things separate the quotes:

• Household or spousal discounts. Many insurers knock a percentage off the premium when two adults in the same household both hold a policy (sometimes even when just one other adult lives with you). The discount percentage and the rules — do you have to be married, do you both have to buy from the same company — vary a lot.
• Medical underwriting. During your Medigap Open Enrollment (the six months starting the month you're 65 and enrolled in Part B), insurers must sell you any plan they offer at their standard rate, regardless of health. Outside that window, or if you're switching plans later, most insurers can ask health questions and can decline you or charge more. A few limited "guaranteed issue" rights exist — for example, if you lose other coverage — but they're the exception.

If you're outside your open enrollment window, ask each insurer up front whether they'll underwrite your application and what conditions are automatic declines. The answers differ by carrier.

How to actually compare quotes

A practical routine that keeps the comparison apples-to-apples:

1. Pick your plan letter first (many Chattanooga shoppers new to Medicare are choosing between G, G-HD and N). 2. On Medicare.gov, open the Medigap policy search and enter your Hamilton County ZIP code. You'll see every insurer offering that letter, along with each company's pricing method. 3. Ask each insurer for their rate-increase history for the last five years in Tennessee — or find it in the state rate guide. 4. Ask about household discounts and whether you'd qualify. 5. If you're outside open enrollment, ask about underwriting before you apply. 6. Call your local State Health Insurance Assistance Program (SHIP) counselor. The service is free and unbiased.