How do I choose the best Medigap company?

Since all companies offer identical benefits for a given plan letter, choose based on price, rate stability, and financial strength - not coverage. Don't just pick the lowest starting price; look at each carrier's rate-increase history, because a cheap rate that spikes yearly can cost more over time than a stable one. Also check AM Best and S&P financial ratings.

Is the cheapest Medigap plan the best?

Not necessarily. Some carriers offer low teaser rates then raise them aggressively. A slightly higher starting rate with a history of small, stable increases can cost far less over several years. The rate trajectory matters as much as today's price. That's why we evaluate each carrier's actual rate-increase history, not just the current quote.

What financial ratings should a Medigap company have?

Look for solid AM Best and S&P ratings, which measure an insurer's financial stability - important for a company you'll rely on for decades. Also consider how long the carrier has been in the California market and its reputation for claims handling and customer service. A financially strong, established carrier with good service is worth a small premium difference.

Does it matter which company I pick if benefits are the same?

The benefits are identical, but the company still matters for price, how much they raise rates over time, financial strength, and service quality. Two carriers selling the same Plan G can have very different rate-increase histories - meaning very different costs to you over the years. Picking a stable, well-run carrier at a good price is the goal.

What if my Medigap company raises rates too much?

In California, you're protected by the Birthday Rule - each year around your birthday you can switch to an equal or lesser plan with another carrier without medical underwriting. So if your company raises rates too aggressively, you can move to a better-priced carrier for the same coverage, no health questions asked. We monitor this for our clients every year.

California Medigap Guide · part of our Medicare Hub →

Medigap Overview Plan G Plan N Plan G vs N Plan F vs G Comparison Chart Pricing & DiscountsChoose a Company

How to Choose a Medigap Company (2026)

Key Takeaways

Since benefits are identical within a plan letter, you're choosing a company on price, rate stability, and service, not coverage.
The lowest starting price isn't always best, a cheap rate that jumps 20%/year can cost more than a stable one.
Look at a carrier's rate-increase history, not just today's premium, and beware misleading 'averages'.
Financial strength ratings (AM Best, S&P) matter for a company you'll rely on for decades.
In California, the Birthday Rule is your safety net, you can always switch carriers next year.

Once you've picked your plan letter, choosing the company is the other half of the decision, and it's where people often go wrong by chasing the lowest price alone. Here's the practical framework we use to help California clients pick a carrier they'll be happy with for years.

Remember: You're Buying Identical Coverage

Let's start with the foundation: because Medigap plans are federally standardized, every company's Plan G (or Plan N) is exactly the same coverage. So you're not choosing a company for better benefits, there are no better benefits. You're choosing based on three things: price, rate stability, and service.

The Trap: Lowest Price Isn't Always Best

The "teaser rate" problem

Some carriers offer a low starting price to win your business, then raise rates aggressively once you're in. A plan that's cheapest today can become one of the most expensive in a few years. Meanwhile, a carrier with a slightly higher starting rate but a history of small, stable increases can cost you far less over time.

This is why we look at rate-increase history, not just the current premium. The lowest quote today is not automatically the best deal, the trajectory matters just as much as the starting point.

Look at the Actual Rate-Increase History

Here's the kind of behind-the-curtain data that should drive the decision, how much each major carrier has actually raised Plan G rates:

Plan G Rate Increases by Company (2022-2026)

Annual rate increases, notice how they've accelerated, and vary widely by carrier

Source: CSG Actuarial. Increases vary dramatically by carrier, which is exactly why shopping (and the Birthday Rule) matters.

Notice how much they vary. Some carriers have consistently smaller increases; others have spiked hard recently. This history, which most consumers never see, is a far better predictor of your future costs than today's quote alone. And here's the same view for Plan N:

Plan N Rate Increases by Company (2022-2026)

Plan N annual rate increases by carrier

Source: CSG Actuarial. Plan N increases have generally run lower than Plan G in recent years.

Also Check Financial Strength

AM Best rating

Measures an insurer's financial stability. You want a solid rating from a company you'll rely on for decades.

S&P rating

Another independent measure of financial strength, higher is more secure.

Years in market

A long track record in California suggests stability and commitment to the market.

Service reputation

How the carrier handles claims and customer service, it matters when you actually need them.

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Your California Safety Net: The Birthday Rule

You're never permanently stuck

Here's what takes the pressure off the whole decision: in California, if you pick a carrier and they later raise rates too much, you can switch, every year, around your birthday, to an equal or lesser plan, without medical underwriting. The Birthday Rule means no choice is permanent. Pick well, but know you have an annual escape hatch that most states don't offer.

Let Us Do the Homework

Evaluating carriers on price, rate history, financial strength, and service, across every California company, is exactly what we do, every day, for free. We know which carriers have been stable and which have spiked. We know which offer the best discounts. And we watch your rate year over year so you're always in a good spot. That ongoing, behind-the-curtain expertise is the real value of working with a specialist. Ready to find your carrier? Get a free Medigap comparison or explore pricing & discounts.