Medicare Q&AMay 15, 2026·7 min read·By Jacob Posner, Founder & Editor
Does Medicare Cover Insulin in 2026? ($35 Cap Explained)
Short answer: Yes. Medicare Part D caps insulin at $35/month per drug in 2026.
Full answer: Yes. Medicare covers insulin through Part D (standalone drug plans and Medicare Advantage drug plans), with a $35 per-month per-covered-insulin cap that took effect January 1, 2023 under the Inflation Reduction Act. Original Medicare Part B also covers insulin used with an insulin pump under durable medical equipment rules, not through the pharmacy. Enrollees who qualify for Extra Help (the Low-Income Subsidy) pay $0 to $12.65 per insulin prescription in 2026, well below the $35 cap.
Medicare covers insulin, and the cost rules changed dramatically starting January 1, 2023. The Inflation Reduction Act (signed August 16, 2022) capped what Part D plans can charge beneficiaries for covered insulins at $35 per month per drug, with no deductible applied to insulin. For the roughly 3.3 million Medicare beneficiaries who use insulin, that cap alone saves hundreds of dollars a year compared to pre-2023 cost-sharing.
Coverage works differently depending on how you use insulin. If you inject insulin with a syringe, pen, or wearable patch, you fill it through your Part D drug plan, and the $35 monthly cap applies. If you use an insulin pump, Original Medicare Part B covers the insulin as durable medical equipment supplies, at 80 percent of the Medicare-approved amount after the 2026 Part B deductible of $283. Medicare Part A does not cover insulin directly; inpatient hospital stays under Part A include all medically necessary drugs (including insulin) administered during the stay as part of the bundled facility payment. This guide covers both Part D and Part B pathways, plus how Extra Help (the Low-Income Subsidy) reduces costs even further. For exact pricing, see insulin cost without insurance. For Medicaid beneficiaries, see does Medicaid cover prescription drugs.
Coverage Breakdown
Coverage by type
Coverage Source
Insulin Covered
2026 Cost to You
Key Conditions
Medicare Part D (standalone PDP)
Yes
$35/month per covered insulin (no deductible applies to insulin)
Insulin must be on plan formulary; biosimilars included if formulary-listed
Medicare Advantage (Part C) with drug coverage
Yes
$35/month per covered insulin (IRA cap applies to MA-PD plans)
Some MA plans offer $0 insulin; must verify your plan's 2026 formulary
Medicare Part B (for insulin pump users only)
Yes (pump only)
20% of Medicare-approved amount after $283 Part B deductible (2026)
Pump must be prescribed as DME; insulin must be used in the pump, not injected
Extra Help / Low-Income Subsidy (LIS)
Yes (reduced cost)
$0 to $12.65 per insulin prescription in 2026 (full or partial LIS)
Must qualify for Extra Help based on income and assets; apply through SSA
Medigap (Medicare Supplement)
Partial (Part B only)
Covers Part B coinsurance (20%) for pump insulin after deductible; does NOT cover Part D costs
Medigap does not add drug coverage; Part D plan needed separately for injectable insulin
The $35 insulin cap applies to all covered insulins on a Part D plan formulary, regardless of which cost-sharing phase (deductible, initial coverage, or catastrophic). The cap is per insulin product, so if you use two different insulins you pay up to $35 each per month. The Inflation Reduction Act (P.L. 117-169) established this cap; it does not apply to non-insulin diabetes medications.
Source: CMS Medicare Part D 2026 Plan Finder, Inflation Reduction Act P.L. 117-169, Medicare.gov Drug Coverage
Direct Answer: What Medicare Covers for Insulin in 2026
Yes. Medicare covers insulin for beneficiaries with diabetes. Part D plans cap the monthly cost at $35 per covered insulin starting in 2023, with no deductible applied to insulin. Part B covers insulin only when used in a Medicare-covered insulin pump. Extra Help enrollees pay even less, from $0 to $12.65 per insulin prescription in 2026.
The $35 Insulin Cap: How It Works Under Part D (2026)
The Inflation Reduction Act, signed August 16, 2022, set a $35 per-month cap on the cost-sharing a Medicare Part D plan can charge for a covered insulin product, effective January 1, 2023. The cap applies across all phases of the Part D benefit: deductible, initial coverage, coverage gap, and catastrophic. Before the IRA, beneficiaries in the deductible phase could pay full retail price for insulin, which ran $300 to $500 per vial for branded products.
Three things the $35 cap covers and three things it does not. The cap covers all Part D-enrolled beneficiaries including those in standalone PDPs and Medicare Advantage drug plans, applies to any covered insulin on your plan's formulary regardless of tier, and covers insulin analogs, human insulins, and biosimilar insulins. The cap does not cover non-insulin diabetes medications (such as GLP-1 agonists like semaglutide or SGLT-2 inhibitors), insulin used in a pump (that falls under Part B), or insulins not listed on your specific plan formulary.
Per-insulin-product application: if you use both basal insulin (such as insulin glargine, sold under brand names Lantus and Toujeo, or the biosimilars Basaglar, Semglee, and Rezvoglar) and rapid-acting insulin (such as insulin lispro, sold as Humalog and Admelog, or biosimilar Lyumjev), each product carries its own $35 monthly cap. A beneficiary using both a basal and a bolus insulin pays up to $70 per month total, not $35 for both combined.
Part B Coverage of Insulin: The Insulin Pump Rule
Original Medicare Part B covers insulin when it is used in a Medicare-covered insulin pump (continuous subcutaneous insulin infusion device, or CSII). Part B classifies the pump as durable medical equipment (DME) and treats the insulin used in it as a supply necessary for the DME to function, which means Part B pays for the insulin directly rather than routing it through Part D. The practical difference is cost-sharing: Part B pays 80 percent of the Medicare-approved amount after the 2026 Part B deductible of $283, and you pay the remaining 20 percent. A Medigap supplement policy covers that 20 percent coinsurance.
Part B does NOT cover insulin you inject with a syringe, pen, or wearable patch. If you wear an insulin pump but also keep injectable insulin for corrections, the pump insulin goes through Part B and the injectable insulin goes through Part D (subject to the $35 cap). To qualify for Part B DME coverage of the pump itself, your doctor must certify that you have severe diabetes requiring tight glucose control, you have been trained in pump use, and the pump is medically necessary.
Extra Help (Low-Income Subsidy): Insulin at $0 to $12.65 in 2026
Extra Help, formally the Part D Low-Income Subsidy (LIS), is a separate federal program that reduces or eliminates Part D premiums, deductibles, and cost-sharing for Medicare beneficiaries with limited income and resources. Full LIS enrollees pay $0 per prescription for covered insulins in 2026. Partial LIS enrollees pay up to $12.65 per prescription (brand-name) or $5.10 (generic), still well below the $35 IRA cap. Extra Help eligibility in 2026 requires income at or below 150 percent of the federal poverty level (roughly $22,590 for an individual or $30,600 for a couple) and limited assets.
Medicaid-enrolled Medicare beneficiaries (dual-eligibles) automatically qualify for full Extra Help. SSI recipients and people in a Medicare Savings Program also auto-enroll. Everyone else must apply through the Social Security Administration at ssa.gov or call 1-800-772-1213. Medicare estimates that 3 million people eligible for Extra Help are not enrolled. The application takes about 15 minutes and coverage is retroactive to the first day of the month the application is received.
You may qualify for free health insurance.
Our 2-minute screener checks Medicaid, ACA, Medicare, CHIP, and more. Most uninsured Americans qualify for $0/month coverage they didn't know about.
Which Insulins Does Medicare Cover in 2026? Brand-Name and Biosimilar Options
Medicare Part D covers a wide range of insulins when they appear on a plan's formulary. Plans are not required to cover every insulin on the market, but CMS requires formularies to include at least two insulins from at least two different insulin types (basal, rapid-acting, short-acting, etc.). Common brand-name and biosimilar insulins covered by most Part D formularies in 2026 include the following.
Basal insulins (long-acting): insulin glargine (Lantus, Toujeo), insulin detemir (Levemir), insulin degludec (Tresiba), and biosimilars Basaglar, Semglee, and Rezvoglar.
Biosimilar insulins are interchangeable with their reference products and count toward the $35 cap the same as brand-name insulins. Using a biosimilar does not reduce the cap further, but it may reduce what the plan pays and therefore affect your plan's total drug spend.
Part D 2026 Out-of-Pocket Cap and How Insulin Counts
Starting in 2025, the Inflation Reduction Act eliminated the Part D coverage gap (donut hole) and created a true out-of-pocket spending cap. In 2026, the Part D out-of-pocket cap is $2,100. Once a beneficiary has paid $2,100 out of pocket for covered Part D drugs in a calendar year, they pay $0 for the remainder of the year. The $35 monthly insulin payments count toward this $2,100 cap. A beneficiary paying $35 per month for two insulins ($70/month) would hit the annual cap after roughly 30 months of steady use, so the catastrophic phase protection matters most for beneficiaries with multiple expensive medications, not just insulin.
How to Find a Medicare Plan That Covers Your Specific Insulin (2026)
Medicare Part D plan formularies differ, and not every plan covers every insulin brand. The Medicare Plan Finder at medicare.gov/plan-compare lets you enter your specific insulins and see which Part D or Medicare Advantage plans cover them, what tier each insulin falls on, and what your estimated annual cost would be. The Annual Enrollment Period runs October 15 through December 7, 2026, with coverage changes effective January 1, 2027. Outside of AEP, you can switch Part D plans only if you qualify for a Special Enrollment Period, such as moving, losing other coverage, or gaining Extra Help eligibility.
State Health Insurance Assistance Programs (SHIPs) provide free, unbiased counseling to help Medicare beneficiaries compare plans. Call 1-800-MEDICARE (1-800-633-4227) to reach your state SHIP, or find local SHIP counselors at shiphelp.org. SHIP counselors can run the Plan Finder side-by-side with your medication list and explain the formulary tier differences in plain language.
What If You Cannot Afford Insulin Before Your Medicare Starts?
Three programs help with insulin costs outside of Medicare coverage. Manufacturer patient assistance programs (PAPs) provide free or reduced-cost insulin to uninsured or underinsured patients: Eli Lilly's Insulin Value Program caps insulin at $35 per month out of pocket for uninsured patients, Novo Nordisk's Patient Assistance Program provides free NovoLog, Levemir, and Tresiba to qualifying low-income patients, and Sanofi's Insulins Valyou Savings Program provides discounts on Lantus, Toujeo, and Apidra. State pharmaceutical assistance programs (SPAPs) in many states supplement Medicare Part D costs for low-income beneficiaries. Community health centers (Federally Qualified Health Centers) provide insulin at sliding-scale cost based on income for uninsured and underinsured patients.
Frequently Asked Questions
Does Original Medicare cover insulin in 2026?
Original Medicare covers insulin only when used in a Medicare-covered insulin pump (under Part B). Injectable insulin filled at a pharmacy is NOT covered by Part A or Part B. For injectable insulin, you need a Part D standalone plan. The $35 monthly insulin cap applies to Part D and Medicare Advantage drug plans, not to Part B.
Does Medicare Part D cover insulin with no deductible?
Yes. The Inflation Reduction Act eliminated the Part D deductible for covered insulins effective January 1, 2023. Part D plans cannot charge a deductible for insulin, and cost-sharing is capped at $35 per covered insulin per month regardless of which coverage phase you are in.
What is the Medicare insulin cap in 2026?
The Medicare Part D insulin cap is $35 per covered insulin per month in 2026. This cap applies to all Part D-enrolled beneficiaries including those in Medicare Advantage drug plans. The cap is per insulin product: if you use two different insulins, you pay up to $35 for each, or $70 total per month. Extra Help enrollees pay even less ($0 to $12.65 per prescription in 2026).
Does Medicare cover Ozempic or other GLP-1 drugs for diabetes?
Yes, but only under Part D, not under the $35 insulin cap. GLP-1 agonists like semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro, Zepbound) are not insulins, so the IRA's $35 insulin cap does not apply to them. Coverage and cost-sharing depend on your plan's formulary tier. Ozempic is typically on a non-preferred tier with substantial cost-sharing unless you have Extra Help.
Does Medicare Advantage cover insulin at $35/month?
Yes. Medicare Advantage plans that include Part D drug coverage (MA-PD plans) must apply the same $35 per-month insulin cap as standalone Part D plans. Some MA-PD plans go further and offer $0 insulin cost-sharing as an enhanced benefit. Check your specific plan's Evidence of Coverage for 2026 to confirm the cap for your insulins.
How does Medicare cover insulin pump supplies?
Medicare Part B covers insulin pump supplies (including the insulin itself) as durable medical equipment. You pay 20 percent of the Medicare-approved amount after the 2026 Part B deductible of $283. The pump must be prescribed by a physician as medically necessary DME. Medigap policies cover the 20 percent Part B coinsurance. The $35 Part D cap does not apply to pump insulin covered under Part B.
Can I get insulin for free with Extra Help (Low-Income Subsidy)?
Full Extra Help enrollees pay $0 per insulin prescription at a Part D-covered pharmacy in 2026. Partial Extra Help enrollees pay up to $12.65 per prescription (brand-name) or $5.10 (generic) in 2026. To qualify, income must be at or below 150 percent of the federal poverty level (about $22,590/year for an individual in 2026) with limited assets. Apply at ssa.gov or call 1-800-772-1213.
What happens if my Medicare plan does not cover my insulin?
You have two options. First, during the Annual Enrollment Period (October 15 to December 7, 2026) you can switch to a plan that covers your insulin. Second, outside of AEP you can request a formulary exception from your plan, requiring your doctor to document that the covered alternative insulin is not clinically appropriate. If the exception is denied, you have the right to appeal. Manufacturer patient assistance programs (Eli Lilly, Novo Nordisk, Sanofi) also provide free or reduced-cost insulin outside of Medicare for qualifying patients.
You may qualify for free health insurance.
Our 2-minute screener checks Medicaid, ACA, Medicare, CHIP, and more. Most uninsured Americans qualify for $0/month coverage they didn't know about.
