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HomeMedicare SupplementCaliforniaMoreno ValleyShopping Medigap in Moreno Valley: how the same plan letter can be priced very differently

Medicare Supplement

Shopping Medigap in Moreno Valley: how the same plan letter can be priced very differently

If you live in Moreno Valley and you're weighing a Medicare Supplement (Medigap) policy, the most useful thing to know up front is this: a Plan G is a Plan G, and a Plan N is a Plan N, no matter whose name is on the envelope. The federal government standardized these letters, so the coverage inside each letter is the same at every insurer that sells it. What changes from company to company is how they set the price, how often those prices go up, whether a spouse or roommate can get a discount, and whether they'll ask health questions before saying yes.

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Key takeaways

  • The same Medigap plan letter offers identical benefits at every insurer, so any real difference between two "Plan G" policies comes down to price, rate history, discounts and underwriting.
  • California insurers can use attained-age, issue-age or community rating, and that choice affects how your premium changes as you get older.
  • If you apply outside your six-month Medigap Open Enrollment Period, most insurers can use medical underwriting and may charge more or decline you.
  • Use the Medicare.gov Medigap policy search and the California Department of Insurance rate guide to compare insurers side by side before you buy.

Moreno Valley is in Riverside County, and California residents can shop from a long list of insurers licensed to sell Medigap statewide. The table below lists every insurer in the state's Medigap market and the plan letters each one offers. This article walks through how to compare them fairly.

The plan letter is standardized — the insurer is not

Medigap plans sold to people newly eligible for Medicare today come in these standardized letters: A, B, D, G, G-HD, K, L, M and N. (Plans C and F are only available to people who became eligible for Medicare before January 1, 2020.) Every insurer that sells "Plan G" must cover the exact same set of gaps in Original Medicare. So when you compare two Plan G policies, you are not comparing benefits — you are comparing companies.

That's why the questions worth asking are about the company itself: how it prices, how much it has raised rates in the past, what discounts it offers, and how it decides who to accept.

Three ways insurers price the same plan

California allows Medigap insurers to use one of three pricing methods, and this is often the single biggest reason two policies for the same plan letter look so different at age 65 versus age 80.

None of these methods is automatically "better." An attained-age policy that looks appealing in your 60s can climb sharply in your late 70s, while a community-rated policy might start higher and stay steadier. Ask the insurer, in writing, which method they use.

Rate history matters as much as today's price

Because premiums can (and do) change every year, a policy's rate history tells you something a single quote can't. The California Department of Insurance publishes a Medicare Supplement rate guide that shows historic rate increases by company. Two insurers selling the identical plan letter can have very different track records for how often, and how much, they raise premiums. That history is worth pulling up before you commit.

Household and other discounts

Some insurers on the California list offer a household discount — a percentage off the premium if you live with another adult, or if a spouse or partner also has a policy with the same company. The rules vary: some require both people to be enrolled, others just require you to share a household. It's not offered by every insurer and the size of the discount differs, so it's a fair question to ask each company you're considering.

Underwriting: when the insurer can ask health questions

This is the part that trips up many shoppers. During your one-time Medigap Open Enrollment Period — the six months that begin the month you're 65 or older and enrolled in Part B — insurers must sell you any Medigap policy they offer, at the best available rate, regardless of your health. That's called guaranteed issue.

Outside of that window (and outside a handful of other guaranteed-issue situations, like losing certain coverage), most insurers can use medical underwriting. That means they can ask about your health, charge more, or turn you down. Some insurers underwrite more strictly than others, so if you're switching Medigap plans later in life, it's worth applying to a company with underwriting rules you're likely to pass.

How to compare Moreno Valley options without getting overwhelmed

A practical approach:

1. Start on Medicare.gov's Medigap policy search. Enter your ZIP code and you'll see which insurers sell each plan letter in Riverside County, with sample premiums by age. 2. Pull the California Department of Insurance Medicare Supplement rate guide for insurer-by-insurer rate history. 3. Pick two or three insurers offering the plan letter you want (many people compare Plan G and Plan N, for example), and call each one to confirm the pricing method, any household discount, and their underwriting questions if you're outside open enrollment. 4. For free, unbiased help, contact HICAP — California's State Health Insurance Assistance Program (SHIP). Counselors don't sell insurance and can walk you through the comparison.

By the numbers

Medicare Part B premium, 2006–2026

The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.

$0$50$100$150$200200820122016202020242026

Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.

By the numbers

How people get Medicare in Riverside County

63% are on Medicare Advantage
(MA penetration in Riverside County)
63%
37%
Medicare Advantage Medicare Supplement (Medigap) Original Medicare only
U.S. average

MA penetration from CMS enrollment data; Medigap share is an estimate. U.S. average is about 54% Medicare Advantage. These are area-level figures, not plan-specific.

Who sells Medigap here

Medigap insurers in California

Insurers offering Medigap policies in California, listed alphabetically. Prices vary by insurer for the same letter and are not shown here.

  • AARP - UnitedHealthcare Insurance Company Plans A, B, C, F, G, K, L, N
  • AFLAC Plans A, F, G, N
  • American Retirement Life Insurance Company (CIGNA) Plans A, F, G, G-HD, N
  • Anthem BlueCross - California Plans A, F, G, N
  • Bankers Life (Underwritten by Washington National Insurance Company) Plans A, F, G, G-HD, N
  • Blue Shield of California Life & Health Insurance Company Plans A, F, G, N
  • Continental Life Insurance Company of Brentwood, Tennessee (Aetna) Plans A, B, F, F-HD, G, N
  • Everence Association Inc. Plans A, F, G, N
  • Humana (Humana Insurance Company) Plans A, B, C, F, F-HD, G, G-HD, K, L, N
  • Insurance Company of North America Plans A, F, G, G-HD, N
  • Lumos Insurance Plans A, F, G, N
  • Mutual of Omaha (United World Life Insurance Company) Plans A, F, G, G-HD, N
  • State Farm Mutual Automobile Insurance Company Plans A, C, D, F, G, N
  • United American Insurance Company Plans A, B, C, D, F, F-HD, G, G-HD, K, L, N
  • USAA Life Insurance Company Plans A, F, G, N

Source: Medicare.gov Medigap policy search. No insurer is ranked or recommended.

Medicare Supplement (Medigap)

The Medigap plans you can buy in California

Medigap plans are standardized by federal law: a Plan G from one insurer covers the same things as a Plan G from any other. Insurers set their own prices, which are not shown here.

PlanWhat it coversOpen to new enrollees
Plan AThe basic benefits every Medigap plan includes: Part A hospital coinsurance and up to 365 extra hospital days, Part B coinsurance, the first three pints of blood, Part A hospice coinsurance.Yes
Plan BPlan A plus the Part A hospital deductible.Yes
Plan CPlan B plus skilled-nursing coinsurance, the Part B deductible and foreign-travel emergency care. Closed to people newly eligible for Medicare on or after January 1, 2020.Only if you were eligible before 2020
Plan DPlan B plus skilled-nursing coinsurance and foreign-travel emergency care (not the Part B deductible).Yes
Plan FEvery standardized benefit, including the Part B deductible and Part B excess charges. Closed to people newly eligible on or after January 1, 2020. A high-deductible version exists.Only if you were eligible before 2020
Plan GEvery standardized benefit except the Part B deductible (which you pay yourself each year). A high-deductible version (G-HD) pays after you meet a yearly deductible.Yes
Plan KPays a share of most cost-sharing (50 percent for several benefits) with a yearly out-of-pocket limit set by federal rules.Yes
Plan LLike Plan K with a larger share (75 percent) and a lower yearly out-of-pocket limit.Yes
Plan MLike Plan D but covers half of the Part A hospital deductible.Yes
Plan NLike Plan G, except a small copayment for some office and emergency-room visits, and it does not cover Part B excess charges.Yes

Source: CMS, Medicare Supplement Insurance (Medigap) rules; medicare.gov.

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Explore

The parts of Medicare

Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people pay no premium for Part A.

Explore

When can you enroll? An interactive year

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October 15 – December 7 — anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.

Good to know

Frequently asked questions

Are Medigap benefits really the same at every insurer?
Yes. Federal law standardizes the plan letters, so a Plan G at one insurer covers the same Medicare gaps as a Plan G at another. Differences come from price, rate history, discounts, customer service and underwriting — not benefits.
When can I buy a Medigap policy without answering health questions?
Your best window is your six-month Medigap Open Enrollment Period, which starts the month you're both 65 or older and enrolled in Medicare Part B. During that period, insurers must sell you any policy they offer at the best available rate. A few other situations, called guaranteed-issue rights, also protect you.
Can I switch Medigap insurers later if I find a better price?
You can apply anytime, but outside of a guaranteed-issue situation, the new insurer can usually require medical underwriting and may charge more or decline you. It's worth calling the insurer to ask about their underwriting questions before you apply.
Does Medigap work with Medicare Advantage?
No. Medigap policies only work with Original Medicare (Parts A and B). If you're enrolled in a Medicare Advantage plan, a Medigap policy can't be used to pay your Advantage plan's costs. ## Where to go next For personalized answers, call **1-800-MEDICARE** (1-800-633-4227), visit **Medicare.gov** to use the official Medigap policy search, or reach out to **California's HICAP** for free one-on-one counseling. The California Department of Insurance also publishes the Medicare Supplement rate guide, which is one of the most useful comparison tools available to Moreno Valley residents.
Sources & further reading
  • Medicare.gov Medigap policy search and state insurance-department rate guides
  • CMS — Medicare Supplement Insurance (Medigap) rules (medicare.gov)

For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.

Also for Moreno Valley

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This page was last updated: September 2026.

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