Mutual of Omaha Medicare Supplement Review: Plan G in 2025

Medigap (Medicare Supplement Insurance) is one of the very few corners of insurance where the carrier you pick at age 65 affects your premiums for the rest of your life. Choosing well during open enrollment, when underwriting is guaranteed-issue, is one of the highest-leverage hours of the entire Medicare process.

Mutual of Omaha is one of the longest-tenured, most-quoted carriers in the Medigap market. We pulled rate-increase data and 268 reader experiences through 2024. Here is the picture for 2025.

Why rate-increase history matters more than first-year price

Medigap policies in most states are "attained-age" priced — meaning your premium increases as you age, and on top of that, the carrier files rate increases periodically. Two policies that quoted you the same Plan G at age 65 can be 20–35% different in premium by age 75 if one carrier files larger rate increases.

Mutual of Omaha's rate-increase track record on Medigap, across the last decade, has been one of the lowest in the industry. The carrier files smaller, more frequent increases — annoying in any given year but less painful in aggregate.

The math that matters: a Plan G that's 10% more expensive at 65 but files 2% smaller annual increases will be cheaper than the "cheapest carrier at 65" by your mid-70s. That's the trade most Medigap shoppers don't price in.

Plan G is the right plan for most readers

Plan G is the plan we recommend for the vast majority of Medigap shoppers in 2025:

• It covers everything the discontinued Plan F covered, except the Part B deductible ($257 in 2025).
• It is dramatically cheaper than Plan F where Plan F is still available.
• It is available everywhere Mutual of Omaha sells Medigap.

Plan N is a credible alternative for cost-sensitive shoppers — premium is typically 25–35% lower, but you'll pay copays per office visit and per ER visit, and there's a Part B excess-charge gap that does occasionally bite.

Pricing snapshot

For a 65-year-old non-tobacco-using Plan G applicant:

State	Mutual of Omaha	Cheapest in state	Difference
Texas	$164	$148	+11%
Florida	$185	$172	+8%
New York	(community-rated)	(community-rated)	n/a
California	$158	$144	+10%
Ohio	$148	$135	+10%

The pattern: Mutual of Omaha is consistently 8–14% above the cheapest carrier at issue, but lands in the first-year top three in most states.

Customer service and claims

Medigap claims are mechanically simple — Medicare pays first, the supplement pays the gap. Mutual of Omaha pays cleanly. The reader-survey data:

• 89% said their claims experience was good or very good
• 3% had a claim initially denied that they had to appeal (very low)
• Average call wait time: 6 minutes (above industry median, behind UnitedHealthcare's AARP product)

Customer service is solid but not class-leading. Some readers report regional variability — Midwest service is consistently rated higher than coastal service.

Where it falls short

Three honest issues:

1. Initial premium is rarely the lowest. If your only criterion is year-1 price, you'll find cheaper.
2. Underwriting outside open enrollment. If you're switching mid-stream and have any meaningful health flag (diabetes, COPD, prior cardiac event), Mutual of Omaha can be conservative. Talk to an independent broker about which carriers underwrite more leniently for your profile.
3. No Part B excess charge waiver structure. Plan G covers excess charges, but Plan N does not. If you're tempted by Plan N, model the excess-charge exposure in your area.

Who Mutual of Omaha is right for

• Anyone enrolling at 65 in their open-enrollment period.
• Couples — the household discount is a meaningful long-term saver.
• Anyone who values rate-stability over absolute lowest premium.

Who should look elsewhere

• Cost-sensitive shoppers willing to switch carriers in the future (your initial pick matters less if you're disciplined about re-quoting and you're underwritable).
• Anyone with health flags trying to switch outside open enrollment.

If we were enrolling tomorrow at 65, in nearly every state, we'd quote Mutual of Omaha first and compare it against two of the cheaper carriers in our state. If Mutual is within 10–12% of the cheapest, we'd pick Mutual.