Medicare in Idaho runs on the same federal rules as every state, but Idaho adds a Medigap birthday rule and free SHIBA counseling through the Department of Insurance., The birthday rule gives you a 63-day window each year to switch supplement plans with no health screening, and Idaho runs its Medicare Savings Programs through the Department of Health and Welfare using the standard federal income and resource limits.

In This Guide

About these numbers: The premiums and deductibles below come from CMS for calendar year 2026, effective January 1. Medicare costs change every year, so check the figures for the year you are in against the CMS fact sheet or medicare.gov before you rely on them. To talk to a person about Original Medicare, call 1-800-MEDICARE (1-800-633-4227; TTY 1-877-486-2048), staffed 24 hours a day, 7 days a week except some federal holidays. For free one-on-one help in Idaho, call SHIBA at 1-800-247-4422.

What Do Parts A and B Cost in Idaho?

Original Medicare is run directly by the federal government and comes in two parts. The mechanics and costs are identical in Idaho and every other state.

Part A (Hospital Insurance)

Part A covers inpatient hospital stays, limited skilled nursing facility care, hospice, and some home health care.

Cost Amount
Monthly premium $0 for most people (40+ quarters of work history)
Hospital deductible $1,736 per benefit period
Hospital coinsurance, days 61-90 $434 per day
Lifetime reserve days $868 per day
SNF coinsurance, days 21-100 $217 per day

The hospital deductible rose $60 from 2025. A benefit period starts the day you are admitted and ends once you have gone 60 days in a row without inpatient hospital care or skilled care in a skilled nursing facility. Get readmitted after that, and the deductible applies again.

Part B (Medical Insurance)

Part B covers doctor visits, outpatient care, preventive services, durable medical equipment, and mental health care. Part B does not cover routine dental, vision, or hearing. Most Medicare Advantage plans offer routine dental, vision, and hearing benefits instead, so check what a specific plan actually covers before you count on it.

  • Monthly premium: $202.90 (higher if your 2024 income was above $109,000 single or $218,000 married, under the income-related adjustment)
  • Annual deductible: $283
  • After the deductible: you pay 20% of the Medicare-approved amount for most services

Part B is technically optional, but nearly everyone signs up. Delay past your enrollment window without qualifying for a Special Enrollment Period or a Medicare Savings Program and you will owe a late penalty of 10% for every 12 months you could have had it, for as long as you keep Part B. Creditable drug coverage is a Part D term and does not excuse a late Part B enrollment.

Medicare Advantage in Idaho (Part C)

Medicare Advantage plans are an alternative to Original Medicare, sold by private insurers. They cover everything Parts A and B do, except hospice, which Original Medicare keeps covering. Most bundle in Part D drug coverage along with extras like dental, vision, and hearing.

Idaho residents in the Boise metro generally see the widest choice of plans. As you move into rural Idaho and the eastern Snake River Plain, the number of available plans drops, and some rural areas have very limited options. Plan options, networks, and prices change every year and differ by county, so compare what is actually available at your address before you decide.

How These Plans Work

Use the Medicare Plan Finder at medicare.gov to compare plans by ZIP code. Enter your doctors and prescriptions and it shows which plans cover them and your estimated cost. If you want help reading the results, an Idaho SHIBA counselor will go through them with you for free.

How Does Medicare Part D Work in Idaho?

Part D covers outpatient prescription drugs. You can get it as a standalone plan paired with Original Medicare, or built into a Medicare Advantage plan.

The Inflation Reduction Act eliminated the old coverage gap, the donut hole, so that higher-cost middle stage is gone. Part D now moves through three phases:

  1. Deductible: you pay full price until you meet your plan's deductible (up to $615 in 2026).
  2. Initial coverage: you pay copays or coinsurance while your plan and drug makers cover the rest.
  3. Catastrophic: once your out-of-pocket spending reaches $2,100, you pay $0 for covered drugs the rest of the year.

That $2,100 cap is the number that matters most in Part D. It was $2,000 in 2025 and rises with drug-spending growth. Standalone Part D plan premiums are set by each carrier and vary widely; the projected 2026 average is roughly $34.50 a month. Every plan also has to offer the Medicare Prescription Payment Plan, which lets you spread your out-of-pocket drug costs into capped monthly payments across the year instead of paying in full at the pharmacy. People who qualify for Extra Help often pay much less, sometimes nothing.

Not sure which Part D plan fits your prescriptions? Chat with Brevy's care navigator at brevy.com.

Should You Buy Medigap in Idaho?

Medigap policies are sold by private insurers to fill the gaps in Original Medicare: the deductibles, coinsurance, and copays. They work with Original Medicare, and a Medigap policy can't pay a Medicare Advantage plan's copays, coinsurance, deductibles, or premiums.

Idaho offers the federally standardized plans, labeled A-D, F, G, and K-N, including high-deductible Plan F and Plan G. Plans C and F are closed to anyone who became Medicare-eligible on or after January 1, 2020. Plan G is the popular choice for people newly eligible: it covers the Part A deductible, Part A and Part B coinsurance, and skilled nursing coinsurance, leaving only the $283 Part B deductible on you.,

Your first opening is the federal Medigap Open Enrollment Period, the six months that begin when you are 65 and enrolled in Part B. During that window an insurer must sell you any plan at the standard rate regardless of your health. Outside it, Idaho insurers may use medical underwriting for some purchases.

Idaho's Medigap Birthday Rule

Idaho is one of a handful of states with a Medigap birthday rule. Each year, a current Medigap policyholder gets a 63-day window beginning on their birthday to switch to a similar-or-lesser plan from their own or any Idaho company, guaranteed issue, with no underwriting. Under the same 2022 changes, new Idaho Medicare Supplement premiums are no longer based on the applicant's age. Idaho does not have a state-law guarantee of Medigap access for beneficiaries under 65 who reach Medicare through disability; if you are under 65 and on Medicare, contact an Idaho SHIBA counselor about your options.

Medigap or Medicare Advantage?

While you're in a Medicare Advantage plan it's illegal for anyone to sell you a Medigap policy unless you're switching back to Original Medicare. Choose Medigap and you stay on Original Medicare with the freedom to see any provider who takes Medicare nationwide, at a higher monthly premium. Choose Medicare Advantage and you trade some of that freedom for a network and a lower upfront cost. For a side-by-side look at the trade-off, see our guide to Original Medicare vs. Medicare Advantage.

Help Paying for Medicare in Idaho

If you are on a fixed income, two programs can cut your Medicare costs sharply.

Medicare Savings Programs

Idaho runs its Medicare Savings Programs through Idaho Department of Health and Welfare (DHW), Idaho's Medicaid agency. Idaho uses the standard federal income tiers and resource limits. These programs pay some or all of your Medicare premiums and cost-sharing based on income.

Program DHW income range Individual Couple What it pays
QMB (Qualified Medicare Beneficiary) 0-100% FPL $1,350 $1,824 Part A and B premiums, deductibles, coinsurance
SLMB I (Specified Low-Income Medicare Beneficiary) 100-120% FPL $1,616 $2,184 Part B premium
QI (Qualifying Individual) 120-135% FPL $1,816 $2,455 Part B premium

Those dollar figures are not the poverty line itself. Social Security states each one as the FPL percentage plus the $20 monthly SSI general income exclusion: "100% FPL+ $20" for QMB, "120% FPL+ $20" for SLMB, "135% FPL+ $20" for QI. For all three programs the 2026 resource limit is $9,950 for one person and $14,910 for a couple, and both sets of numbers are limits on income and resources as the program counts them, after the exclusions its rules apply. QMB is the most generous, providing Medicare coverage of Part A and Part B premiums and cost sharing, and federal law bars providers and suppliers, pharmacies included, from billing a QMB enrollee for that cost sharing. Enrolling in QMB, SLMB, or QI automatically qualifies you for Extra Help.

So do not screen yourself out on a number. Neither DHW nor Social Security publishes which specific income or resources are left out of the count, states may raise the limits further by disregarding amounts or certain types of income and resources, and Social Security's own instruction reads: "Even if the individual's income or resources appear somewhat higher than the state limits, encourage them to apply for the MSPs." DHW puts it more plainly still: "Income is only one piece of the eligibility criteria." QI is also the one tier you must reapply for every year; qualifying once does not carry you into the next year.

How to Apply for Idaho's Medicare Savings Programs

You apply through the Idaho Department of Health and Welfare, and free help is one phone call away if you would rather not do it alone.

1
Step 1

Gather your paperwork

Have your Medicare card and recent proof of income and resources ready, such as a Social Security award letter, pension or wage statements, and current bank balances.

2
Step 2

Apply through Idaho DHW

File your Medicare Savings Program application with the Idaho Department of Health and Welfare, Idaho's Medicaid agency, online at healthandwelfare.idaho.gov.

3
Step 3

Or let a counselor do it with you

Call Idaho SHIBA at 1-800-247-4422 and a counselor will help you complete the application and weigh your income against the current limits, at no cost.

4
Step 4

Confirm this year's limits first

The limits are set as percentages of the Federal Poverty Level and published by year; the figures above are the 2026 tables, effective January 2026 in Idaho. Check the current ones with DHW before you file.

Extra Help for Part D

Extra Help, also called the Low-Income Subsidy, pays Part D premiums, deductibles, and copays for people with limited income and resources. Since 2024 the partial-subsidy tier is gone, so everyone who qualifies now gets the full subsidy.

  • Income limit (2026): up to about $1,995 a month for an individual, $2,705 for a couple, in the 48 contiguous states and DC (Alaska and Hawaii run higher)
  • Resource limits: $16,590 for an individual, $33,100 for a married couple, or $18,090 and $36,100 if you tell Social Security you expect to use some of your resources for burial expenses
  • If you qualify for QMB, SLMB, or QI, you are enrolled in Extra Help automatically
  • QDWI, the Medicare Savings Program for people who lost premium-free Part A after returning to work, pays the Part A premium but does not carry Extra Help with it, so a QDWI enrollee has to apply to Social Security for Extra Help separately,

Apply through Social Security at ssa.gov or call 1-800-772-1213 (TTY 1-800-325-0778).,

Medicare Enrollment Periods

Miss a deadline and you can face coverage gaps or permanent penalties. These dates are federal and the same in Idaho as everywhere else.

Period Dates What you can do
Initial Enrollment 7 months around your 65th birthday Sign up for Parts A, B, and D; pick MA or Medigap
Annual Open Enrollment Oct 15 - Dec 7 Switch MA plans, move between MA and Original Medicare, change Part D
MA Open Enrollment Jan 1 - Mar 31 Switch MA plans or drop MA for Original Medicare (if already in MA)
General Enrollment Jan 1 - Mar 31 Sign up for Part B if you missed your initial window
Medigap Open Enrollment 6 months from age 65 + Part B Buy any Medigap plan at the standard rate, no health screening

Changes you make during Annual Open Enrollment take effect the following January 1. If you are already getting Social Security before 65, you are enrolled in Parts A and B automatically; if not, you sign up yourself through Social Security. If you work past 65 with group health coverage based on that current employment, you can delay Part B without penalty and have an 8-month Special Enrollment Period counted from the month that job or coverage ends, whichever comes first. COBRA and retiree coverage do not count as coverage based on current employment, and if you are self-employed or your plan is not available to everyone at the company, ask your insurer whether it qualifies before you delay; if it does not, sign up at 65. This Special Enrollment Period does not apply if you are eligible for Medicare based on End-Stage Renal Disease (ESRD).

Free Medicare Help: Idaho SHIBA

You do not have to figure this out alone, and you do not have to pay a broker. Idaho runs SHIBA (Senior Health Insurance Benefits Advisors), the state's version of the federal State Health Insurance Assistance Program (SHIP). It is housed inside the Idaho Department of Insurance. Counselors are trained, give free and unbiased help, and do not sell insurance.

An Idaho SHIBA counselor can help you:

  • Understand your Medicare options and what each part covers
  • Compare Medicare Advantage, Part D, and Medigap plans side by side
  • Apply for Medicare Savings Programs and Extra Help
  • Sort out claims, denials, and appeals

Call the national SHIP routing line at 1-800-247-4422 to reach Idaho SHIBA contacts, or visit doi.idaho.gov/shiba to find local help.

Frequently Asked Questions

What does Medicare cost in Idaho in 2026?

Most people pay $0 for Part A. The standard Part B premium is $202.90 a month with a $283 annual deductible. Part D adds a plan premium (with a deductible up to $615 and out-of-pocket capped at $2,100 for the year), and many Medicare Advantage plans charge no extra premium., Your total depends on the plan you pick and the care you use.

Does Idaho have a birthday rule for Medigap?

Yes. Since 2022, Idaho has a Medigap birthday rule: each year a current Medicare Supplement policyholder gets a 63-day window, beginning on their birthday, to switch to a similar-or-lesser plan from their own or any Idaho company on a guaranteed-issue basis, with no medical underwriting. New Idaho Medicare Supplement premiums are also no longer based on the applicant's age. See our Idaho Medigap birthday rule guide for how to use it.

What are Idaho's Medicare Savings Programs?

Idaho administers QMB, SLMB I, and QI through Idaho DHW Medicaid, using the standard federal income and resource limits: $1,350 a month for an individual at QMB, and a resource limit of $9,950 individual and $14,910 couple. QMB provides Medicare coverage of Part A and Part B premiums and cost sharing; SLMB and QI pay the Part B premium. Those are limits on income and resources as the program counts them, and DHW notes that "income is only one piece of the eligibility criteria," so apply rather than rule yourself out. You apply at healthandwelfare.idaho.gov.

Who runs Medicare counseling in Idaho?

The Idaho Department of Insurance runs SHIBA (Senior Health Insurance Benefits Advisors), Idaho's free Medicare counseling program. Counselors are trained and do not sell insurance. Reach Idaho SHIBA by calling 1-800-247-4422 or by visiting doi.idaho.gov/shiba.

Are Medicare Advantage plans available across Idaho?

Plan availability varies significantly by location. The Boise metro area offers the widest selection. Rural parts of Idaho, including much of the eastern Snake River Plain, have fewer options. Use the Medicare Plan Finder at medicare.gov to see what is available at your specific address.

Learn More

Find personalized help with Medicare in Idaho at brevy.com.


The information on Brevy.com is for educational purposes only and is not a substitute for professional legal, financial, or medical advice. Rules vary by state and program and change frequently. Always verify with the relevant agency or a qualified professional. Brevy is not a law firm, financial advisor, or healthcare provider.

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