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Medicare Plan G Complaints and Reviews: What Customers Actually Report
Most Medicare Plan G complaints are about rising premiums, not denied claims. Plan G benefits are standardized by federal law, so every carrier sells the same coverage, and the coverage itself rarely generates complaints. What customers do complain about is the price path after enrollment: annual increases, fading introductory discounts, and the difficulty of switching carriers once health underwriting applies. ValuePenguin reports that AARP and UnitedHealthcare draw about 11 percent fewer Medigap complaints than expected for a company of their size, while MoneyCrashers puts the same group’s NAIC complaint index between 0.54 and 0.73 from 2023 to 2025, where 1.00 is the expected level. The gap every Plan G policy leaves is the 2026 Part B deductible of 283 dollars, set by CMS.
Medicare Plan G is a standardized Medigap policy that fills most of the gaps in Original Medicare except the Part B deductible. It covers the Part A deductible, Part B coinsurance, Part B excess charges, skilled nursing facility coinsurance, and foreign travel emergency care at 80 percent after a 250 dollar deductible, up to a 50,000 dollar lifetime limit. Because the benefits are identical across carriers, a complaint about one carrier’s Plan G is almost always a complaint about that carrier’s price, service, or sales conduct, not about the plan letter itself.
What do Medicare Plan G customers complain about most?
Rate increases dominate Plan G complaints, followed by billing confusion, fading new-customer discounts, and sales pressure. Denied claims barely register because Plan G pays secondary to Medicare automatically once Medicare approves a service, so there is little for a carrier to dispute. The complaint pattern below comes from published carrier reviews and complaint data, not from a single review site.
| Complaint theme | What customers report | How common it is |
|---|---|---|
| Premium increases | Annual increases of 10 percent or more, sometimes two increases in one year | The top theme in nearly every carrier review |
| Fading discounts | A large enrollment discount that shrinks each year, so the premium climbs even without a rate filing | Reported most for AARP and UnitedHealthcare plans |
| Billing and crossover problems | Duplicate bills, payment method errors, and slow crossover claims from Medicare | Regular but usually resolved |
| Sales and marketing pressure | Repeated mail, calls, and agents presenting one carrier as the only option | Common for AARP and Bankers Life in BBB reviews |
| Switching difficulty | Medical underwriting blocks a move to a cheaper carrier after health changes | The complaint behind most other complaints |
One detail explains why rate complaints feel so sharp. A Plan G premium quoted at 65 is a starting price, not a fixed price. Carriers reprice as their whole block of policyholders ages and claims rise, and attained-age rated policies also rise with each birthday. A buyer who compares only the age 65 quote is comparing the cheapest year of the policy.
How bad are Plan G rate increases in 2026?
Early 2026 rate filings for Plan G ranged from just over 12 percent to more than 26 percent across Aetna, Blue Cross Blue Shield, Cigna, Humana, Mutual of Omaha, and UnitedHealthcare, according to Telos Actuarial data reported in 2026. MoneyCrashers reports a 2026 industry average increase above 16.8 percent for AARP plans. These are filed increases for blocks of business, so an individual policyholder’s increase depends on state, age band, and pricing method.
The extreme cases make headlines for a reason. KFF Health News reported in April 2026 that more than 80 customers of one broker, all in the same Chubb supplemental plan, were hit with a 45 percent increase in a single month, effective immediately rather than on their policy anniversaries. A 45 percent jump is unusual, but double-digit increases are now the norm across the market, and that is the single most important fact a new Plan G buyer should absorb before choosing on price alone.
The discount fade deserves its own warning. MoneyCrashers calculates that losing AARP’s 39 percent Texas enrollment discount between ages 68 and 81 raises the premium about 64 percent before any filed rate increase is applied. The discount is real money at 65, and it is also a scheduled increase the buyer agrees to at enrollment. Ask any agent quoting a discounted Plan G premium to show the premium at ages 70, 75, and 80 with the discount fully faded, and compare carriers on those numbers.
Which Plan G carriers draw the most complaints?
No carrier is complaint free, and complaint volume tracks market share, so the biggest carriers generate the most complaints in absolute terms. The fairer comparison is complaints relative to size, which is what the NAIC complaint index measures. A score below 1.00 means fewer complaints than expected for the carrier’s size. The table below uses published review findings, and every figure should be read as a reported figure for a specific company within a group, since large groups sell through several licensed companies with different complaint records.
| Carrier | Complaint picture from published reviews | The recurring theme |
|---|---|---|
| AARP and UnitedHealthcare | About 11 percent fewer Medigap complaints than average for its size, per ValuePenguin; NAIC index 0.54 to 0.73, per MoneyCrashers; BBB rating A+, but low BBB review scores | Discount fade and marketing mail |
| Mutual of Omaha | Generally steady reviews with fewer rate shock reports than the large national carriers | Fewer complaints, higher starting premiums in some states |
| Aetna | Repeated reports of steep increases a few years after enrollment and slow crossover claim handling | Price path after the first years |
| Bankers Life | Numerous BBB complaints over the years, mostly about sales conduct and single-carrier presentations | Agent sales model, no online quoting |
| United American | Reports of above-average premiums and unexpected increases, plus service complaints | Price and reaching a knowledgeable rep |
Treat any carrier ranking built from BBB star ratings with caution. The BBB letter grade measures whether a company responds to complaints, while the star rating reflects self-selected online reviewers, who are usually unhappy customers. A carrier can hold an A+ grade and a one star average at the same time, and AARP is the textbook example. The NAIC complaint index and the state insurance department complaint ratio are better tools because they count complaints against market share.
How do you check a carrier’s complaint record before you buy?
Check three sources before signing, and use the exact licensed company named on the quote, since complaint records differ by company within a group. First, look up the carrier’s NAIC complaint index, where 1.00 is the expected complaint level for its size and anything below that is better than expected. Second, check your state insurance department’s complaint ratio, which shows complaints per unit of premium in your state. Third, read BBB complaints for the pattern, not the star average, and look for whether the company resolved the issue.
Ask the agent two questions that cut through marketing. Ask for the carrier’s Plan G rate increase history in your state for the last five years, which is public in state rate filings. Ask whether the quote uses community rating, issue-age rating, or attained-age rating, because attained-age policies rise with birthdays on top of filed increases. An agent who cannot answer either question is a reason to get a second quote, not a reason to buy.
Can you switch Plan G carriers if the complaints pile up?
Switching is easy during the six month Medigap Open Enrollment Period that starts when you turn 65 and enroll in Part B, and during guaranteed-issue windows such as losing employer coverage. Outside those windows, carriers in most states can require medical underwriting, and a health change can mean denial or a higher premium. That underwriting lock is why a cheap age 65 premium can become a trap: the years when increases hurt most are the years when switching gets hardest.
Some states soften the lock with birthday rules or anniversary rules that allow a switch to an equal or lesser plan without underwriting. California, Oregon, and a handful of other states have versions of these rules, and the details differ by state. Check your state insurance department’s Medigap switching rules before assuming you can move, and do not drop an existing policy until the new one is approved and in force.
Worked example: what to do when your Plan G premium jumps 20 percent
Take a 68-year-old in Texas whose AARP Plan G premium rises 20 percent at renewal, from 190 dollars a month to 228 dollars. Step one is to quote the identical Plan G letter from at least three other carriers in the same ZIP code, since the benefits are the same and only the premium and service differ. Step two is to check each quoting carrier’s NAIC complaint index and five year rate history, and to ask for the premium at ages 70 and 75 with discounts faded. Step three is to apply while the current policy stays in force, and only then cancel the old policy. If underwriting blocks the switch, the fallback is to check whether the state allows a birthday rule switch, and to price Plan N for comparison: Plan N usually costs less per month but adds copays of up to 20 dollars per office visit and 50 dollars per emergency room visit, plus no excess charge coverage, so the math depends on how often you see doctors.
Key takeaways
- Plan G complaints center on premium increases and fading discounts, not on denied claims, because the benefits are standardized.
- Early 2026 Plan G filings ranged from just over 12 percent to more than 26 percent, with a reported industry average above 16.8 percent.
- AARP and UnitedHealthcare draw fewer complaints than expected for their size, but their enrollment discount fades with age and raises the premium sharply.
- Check the NAIC complaint index and your state complaint ratio for the exact licensed company before buying.
- Switching carriers outside open enrollment usually means medical underwriting, so compare the premium at ages 70 and 75 before choosing on the age 65 price.
Related reading on this site: our Medicare Plan G pros and cons, Medigap Plan G costs by age, top 10 Medicare Supplement companies, Medicare Plan F vs Plan G, and Medigap Plan N vs Plan G costs. Complaint and rate figures in this article come from published reviews by ValuePenguin and MoneyCrashers, and the 2026 Part B deductible of 283 dollars comes from CMS; confirm current rates with the carrier before purchase.
Frequently asked questions
What is the most common Medicare Plan G complaint?
Premium increases are the most common Plan G complaint by a wide margin. Early 2026 filings ranged from just over 12 percent to more than 26 percent, and customers also report enrollment discounts that fade with age, which raises the premium even without a filed increase.
Does Plan G deny a lot of claims?
Plan G denies very few claims because it pays secondary to Medicare automatically once Medicare approves a service. Most claim problems are billing or crossover delays, not coverage denials, and those usually resolve once Medicare and the carrier reconcile the claim.
Which Medicare Supplement company has the fewest complaints?
By complaints relative to size, AARP and UnitedHealthcare score well, with about 11 percent fewer Medigap complaints than average per ValuePenguin and an NAIC complaint index of 0.54 to 0.73 per MoneyCrashers. Check the index for the exact licensed company in your state, since results vary by company within a group.
Why did my Plan G premium go up so much?
Plan G premiums rise for three reasons that can stack: filed rate increases across the carrier’s block, attained-age pricing that rises with birthdays, and a fading enrollment discount. A 20 percent renewal increase usually reflects at least two of the three, and the discount fade alone can raise an AARP premium about 64 percent between ages 68 and 81.
Can I switch Plan G carriers if my premium jumps?
You can switch during open enrollment or a guaranteed-issue window without underwriting, but outside those windows most states allow carriers to require medical underwriting. Some states have birthday or anniversary switching rules, so check your state insurance department before dropping your current policy.
