Does Medicare Cover Prescription Drugs in 2026?

Full answer: No. Original Medicare (Parts A and B) does not cover most outpatient drugs filled at a pharmacy. Part B covers drugs administered in a clinical setting, such as infusions, injections, and certain oral cancer medications. For pharmacy drugs, Medicare beneficiaries must enroll in a separate Part D drug plan (PDP) or choose a Medicare Advantage plan with drug coverage (MA-PD). The 2026 Part D out-of-pocket cap is $2,100 per year, set by the Inflation Reduction Act of 2022.

Original Medicare covers hospital stays (Part A) and doctor visits (Part B), but prescription drugs picked up at a pharmacy are a different story. When Medicare was created in 1965, outpatient drug coverage was not included, and that gap persisted for nearly four decades. Congress added voluntary prescription drug coverage in 2003 through the Medicare Modernization Act, creating Medicare Part D, which took effect January 1, 2006. In 2026, Part D carries a $2,100 annual out-of-pocket cap per the Inflation Reduction Act of 2022, the first hard cap in the program's history.

This guide explains the distinction between Part B drug coverage (clinical-setting drugs), Part D drug coverage (pharmacy drugs), and what happens if you skip drug coverage entirely. It also covers the 2026 Part D changes that directly reduce what Medicare beneficiaries pay at the pharmacy counter. Low-income beneficiaries can further reduce costs through Extra Help eligibility.

Coverage Breakdown

Coverage by type
Coverage Type	Covers Outpatient Rx Drugs?	Key Detail	2026 OOP Exposure
Original Medicare: Part A (Hospital)	No	Covers drugs administered during a covered inpatient hospital stay only	Not applicable to outpatient pharmacy
Original Medicare: Part B (Medical)	Partial	Covers specific drugs given in a clinical setting: infusions, injections, some oral cancer drugs, insulin used with a pump; you pay 20% after the 2026 $283 Part B deductible	20% coinsurance after $283 deductible; no Part B OOP cap
Medicare Part D (Prescription Drug Plan)	Yes	Standalone PDP covers outpatient pharmacy drugs on the plan's formulary; insulin capped at $35/month per the Inflation Reduction Act of 2022; $2,100 annual OOP cap in 2026	$2,100 maximum OOP in 2026 (IRA 2022 cap)
Medicare Advantage with Drug Coverage (MA-PD)	Yes	Bundles Parts A, B, and D into one private plan; must cover at least the same drug categories as standalone Part D; many plans offer $0 premium for the drug portion	Same $2,100 Part D OOP cap applies; may have separate medical OOP cap
Medigap (Medicare Supplement)	No	Medigap covers Part A and Part B cost-sharing; it does not cover Part D outpatient drugs. Medigap enrollees must also buy a separate Part D plan for pharmacy coverage.	Part D needed separately; late enrollment penalty if delayed

Coverage comparison for 2026. Original Medicare (Parts A+B) has no outpatient prescription drug benefit. Part D is the voluntary add-on program for pharmacy drugs. The $2,100 Part D OOP cap applies to covered drugs on the plan's formulary and excludes the monthly premium. The $35 insulin cap applies per covered insulin product per month per the Inflation Reduction Act signed August 16, 2022.

Source: CMS.gov: Medicare Prescription Drug Coverage, Medicare.gov Part D Basics, KFF Medicare Part D in 2026

Direct Answer: What Original Medicare Covers and Does Not Cover for Drugs

No. Original Medicare (Parts A and B) does not cover outpatient prescription drugs you fill at a pharmacy. Part B covers a narrow list of drugs administered by a provider in a clinical setting. Part D is the separate voluntary program for pharmacy drugs, available as a standalone plan or bundled in a Medicare Advantage plan. Without Part D, you pay the full retail cost for every prescription, and a late enrollment penalty applies if you go without drug coverage for 63 or more consecutive days after first becoming eligible.

What Part B Does Cover: Clinical-Setting Drugs

Medicare Part B covers drugs that are administered by a provider in a clinical setting, not self-administered at home from a pharmacy bottle. The Part B drug list includes: chemotherapy drugs given by infusion or injection in a doctor's office or outpatient clinic; certain oral cancer drugs that have the same active ingredient as an IV version; drugs given by infusion pump; osteoporosis drugs for qualifying women; vaccines including the flu shot, pneumococcal, and hepatitis B vaccines for at-risk beneficiaries; erythropoiesis-stimulating agents (ESAs) for dialysis patients; and insulin administered through an external pump (not a pen or syringe).

Part B drug cost-sharing in 2026 is typically 20% coinsurance after the 2026 Part B deductible of $283. Because Part B has no out-of-pocket maximum, a long course of expensive infusion chemotherapy can result in significant cost exposure unless you have a Medigap plan (Plans C, D, F, G, M, and N all cover Part B coinsurance) or dual Medicaid coverage.

Infusion chemotherapy (oncology clinic or hospital outpatient)
Certain oral cancer drugs (same active ingredient as an IV formulation)
Immunosuppressive drugs after a Medicare-covered organ transplant
Drugs given by infusion pump (e.g., pain management at home via Medicare-approved pump)
ESAs (erythropoietin) for dialysis-related anemia
Flu, pneumococcal, COVID-19, and hepatitis B vaccines (no cost-sharing for preventive vaccines)
Insulin via external pump (NOT insulin via pen, vial, or syringe, which is Part D)

Medicare Part D: The Outpatient Drug Benefit for 2026

Medicare Part D is the outpatient prescription drug benefit created by the Medicare Modernization Act of 2003 and operational since January 1, 2006. Part D is voluntary but carries a late enrollment penalty, so most beneficiaries enroll when first eligible. In 2026, every Part D plan (whether standalone PDP or an MA-PD) must have a formulary that covers drugs in six protected classes: antidepressants, antipsychotics, anticonvulsants, immunosuppressants for organ transplant, antiretrovirals for HIV, and anticancer drugs. All other therapeutic classes must include at least two drugs per class.

The Inflation Reduction Act of 2022, signed August 16, 2022, fundamentally restructured Part D cost-sharing beginning in 2024 and fully implemented for 2026. Key 2026 changes: the annual out-of-pocket cap is $2,100 for covered Part D drugs (down from an uncapped structure), insulin is capped at $35 per covered insulin product per month, vaccine cost-sharing under Part D was eliminated, and the Medicare Prescription Payment Plan (M3P) lets enrollees spread out-of-pocket costs across monthly installments. These changes apply to enrollees in standalone PDPs and MA-PDs alike, but they do NOT apply to Original Medicare beneficiaries without Part D.

Medicare Part D benefit structure 2026 (key numbers)
Phase	2026 Value	What You Pay
Deductible (max allowed)	$615 in 2026	100% of drug costs until deductible met; many plans have $0 deductible for preferred generics
Initial coverage	After deductible up to OOP cap	Copays or coinsurance set by each plan (e.g., $0-$10 generic, 25-33% brand)
Out-of-pocket cap	$2,100 in 2026	After $2,100 in covered OOP spending, the plan pays 100% for the rest of the year
Insulin cap (IRA 2022)	$35/month per covered insulin product	Applies regardless of which deductible phase you are in
Monthly premium (2026 average)	Varies; national average near $40-$55/month for standalone PDP	Paid even if you use no drugs; non-payment triggers disenrollment

Source: CMS 2026 Part D Landscape File, Medicare.gov. The $2,100 OOP cap is for covered drugs only. Premiums and non-formulary drug costs do not count toward the cap. The M3P installment plan is available for enrollees who prefer spreading costs.

Source: CMS.gov 2026 Part D Benefit Parameters, Medicare.gov, KFF Medicare Part D 2026

Medicare Advantage with Drug Coverage (MA-PD) vs. Standalone Part D

Medicare Advantage plans that include prescription drug coverage (MA-PD) bundle Original Medicare, supplemental benefits, and Part D into a single plan offered by a private insurer. About 75% of Medicare Advantage enrollees are in MA-PD plans as of 2025. MA-PDs must provide at least the actuarial equivalent of standard Part D coverage, and the same $2,100 annual out-of-pocket cap and $35 insulin cap apply. Some MA-PD plans advertise $0 drug premiums because the plan's overall MA bid absorbs the cost, but the Medicare Part B premium ($202.90 per month in 2026) still applies.

Beneficiaries who want to remain in Original Medicare and add drug coverage must buy a standalone Part D Prescription Drug Plan. These plans vary significantly in premium, deductible, formulary, pharmacy network, and tier cost-sharing. Comparing plans at Medicare.gov/plan-compare using your specific drug list each year is critical because formulary changes take effect January 1 and the Annual Enrollment Period (AEP) runs October 15 through December 7, 2026 for coverage starting January 1, 2027.

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The Late Enrollment Penalty: What Happens Without Part D

Skipping Part D when first eligible is costly if you go without creditable drug coverage for 63 or more consecutive days. Creditable coverage means coverage that is at least as good as standard Medicare Part D (common examples: employer group health plan drug coverage, TRICARE, VA drug benefits, FEHB plans, and retiree coverage that meets the creditable standard). If you lack creditable coverage for 63+ consecutive days and then enroll in Part D later, CMS assesses a permanent late enrollment penalty equal to 1% of the national base beneficiary premium per month you were uncovered, added to your Part D premium for as long as you remain enrolled.

Veterans who use VA drug benefits have creditable coverage and are protected from the late enrollment penalty as long as they maintain VA coverage. Low-income beneficiaries who qualify for Extra Help (the Part D Low-Income Subsidy, or LIS) are exempt from the late enrollment penalty entirely and can enroll or switch plans at any time of year.

Extra Help (Low-Income Subsidy) in 2026

Extra Help is a federal program that subsidizes Part D premiums, deductibles, and copays for beneficiaries with limited income and resources. In 2026, Extra Help eligibility extends to individuals with incomes up to 150% of the federal poverty level (approximately $23,940 for a single person in 2026) and limited assets. Full Extra Help (Level 1) eliminates the deductible and caps copays at $4.50 for generics and $11.20 for brand drugs. Partial Extra Help reduces premiums and deductibles on a sliding scale. Dual-eligible beneficiaries (Medicare plus Medicaid) are automatically enrolled in Extra Help.

Applications for Extra Help go through the Social Security Administration at ssa.gov/medicare/part-d-extra-help. Many people who qualify do not know about the program. State Pharmaceutical Assistance Programs (SPAPs) in about 30 states add additional cost help on top of Extra Help for state residents who meet state-specific income rules.

Alternatives If You Do Not Enroll in Part D

If you choose not to enroll in Part D and do not have other creditable drug coverage, several alternatives can reduce what you pay at the pharmacy, though none provide the same comprehensive protection as Part D.

GoodRx and similar discount cards: negotiate discounts below retail price at participating pharmacies; may beat Part D copays for low-cost generics but do not count toward the Part D OOP cap.
Manufacturer patient assistance programs: branded drug manufacturers offer free or reduced-cost drugs to qualifying low-income patients who apply directly; income and insurance criteria vary by program.
VA and TRICARE drug benefits: Veterans Affairs and military retiree coverage are creditable alternatives to Part D and typically offer lower drug costs through the VA formulary system.
PACE (Program of All-Inclusive Care for the Elderly): for dual-eligible beneficiaries aged 55 or older, PACE includes pharmacy services bundled with comprehensive long-term care services.
Retiree drug coverage through former employer: many large employers offer retiree drug plans that are creditable coverage; confirm with your HR or benefits administrator before retiring.

How to Enroll in Part D (2026 Enrollment Periods)

Medicare Part D enrollment works through several windows. The Initial Enrollment Period (IEP) for Part D runs alongside your IEP for Medicare Part B: a 7-month window centered on your 65th birthday month (or 25th month of disability). Enrolling during your IEP avoids the late enrollment penalty. The Annual Enrollment Period (AEP) runs October 15 through December 7, 2026 for coverage starting January 1, 2027. The Medicare Advantage Open Enrollment Period (MA OEP), January 1 through March 31, 2026, lets MA enrollees switch MA plans or return to Original Medicare and join a Part D plan.

Step 1: Gather your current drug list. Write down every prescription with dosage and frequency before comparing plans.
Step 2: Go to Medicare.gov/plan-compare and enter your ZIP code, drugs, and preferred pharmacies. The tool shows formulary coverage, tier placement, and estimated annual cost for each plan.
Step 3: Check whether Extra Help applies. Call Social Security at 1-800-772-1213 or apply at ssa.gov/medicare/part-d-extra-help if your income is below 150% FPL.
Step 4: Enroll directly through the plan's website, by calling 1-800-MEDICARE (1-800-633-4227), or by completing a paper enrollment form.
Step 5: Request a medication review from your pharmacist after enrolling to confirm all your drugs are on the new plan's formulary and at which cost-sharing tier.

Frequently Asked Questions

Does Original Medicare (Part A and Part B) cover prescription drugs from a pharmacy?

No. Original Medicare does not cover most outpatient drugs you fill at a pharmacy. Part B covers drugs administered in a clinical setting by a provider, such as infusions and injections. For pharmacy drugs, you need a separate Medicare Part D plan or a Medicare Advantage plan with drug coverage (MA-PD). Without Part D, you pay full retail price and may face a late enrollment penalty.

What is the 2026 Medicare Part D out-of-pocket cap?

The 2026 Part D out-of-pocket cap is $2,100 for covered drugs on your plan's formulary. After you reach $2,100 in qualifying out-of-pocket spending in a calendar year, your plan pays 100% of covered drug costs for the rest of the year. This cap was created by the Inflation Reduction Act of 2022 and took effect in 2025, with the 2026 amount set at $2,100. Note: the cap applies only to Part D enrollees, not to Original Medicare beneficiaries without a drug plan.

How much is insulin under Medicare Part D in 2026?

Insulin covered by a Medicare Part D plan is capped at $35 per covered insulin product per month in 2026. This $35 cap applies from day one of the year, even before you meet your deductible, and applies to all phases of the Part D benefit. The cap was set by the Inflation Reduction Act signed August 16, 2022, and took effect January 1, 2023 for Part D. Medicare Part B covers insulin used via an external pump at 80% after the $283 Part B deductible in 2026.

Does Medicare cover drugs that are administered by a doctor (like chemotherapy infusions)?

Yes. Medicare Part B covers drugs administered in a clinical setting, including chemotherapy infusions, biologics given by injection, immunosuppressants after a covered transplant, and certain oral cancer drugs. You pay 20% coinsurance after the 2026 Part B deductible of $283. Part B has no out-of-pocket cap, so significant coinsurance exposure is possible without Medigap or dual Medicaid coverage.

What is Extra Help and who qualifies in 2026?

Extra Help (also called the Part D Low-Income Subsidy) is a federal program that pays Part D premiums, reduces deductibles, and caps copays for low-income Medicare beneficiaries. In 2026, eligibility extends to individuals with income up to 150% of the federal poverty level (roughly $23,940 for a single person) and limited assets. Full Extra Help eliminates the deductible and limits copays to $4.50 for generics and $11.20 for brand drugs. Apply through Social Security at ssa.gov or call 1-800-772-1213.

What happens if I delay signing up for Part D?

If you go 63 or more consecutive days without Part D or other creditable drug coverage, you face a permanent late enrollment penalty. The penalty equals 1% of the national base beneficiary premium for each month you were without coverage, added to your monthly Part D premium for as long as you are enrolled. For example, 12 months without coverage adds roughly 12% to your premium permanently. Veterans with VA drug coverage and those with employer group coverage that qualifies as creditable are protected from the penalty while that coverage is active.

Does Medicare Advantage cover prescription drugs?

Most Medicare Advantage plans include prescription drug coverage (called MA-PD plans) that is bundled with Parts A and B. These plans must cover at least the same categories of drugs as standard Part D. The $2,100 OOP cap and $35 insulin cap from the Inflation Reduction Act apply to MA-PD plans the same as standalone Part D plans. About 75% of Medicare Advantage enrollees are in MA-PD plans. A small share of Medicare Advantage plans do not include drug coverage; those enrollees can purchase a standalone Part D plan.

Can I use a discount drug card like GoodRx if I have Medicare?

You can use GoodRx or similar discount cards, but federal law prohibits combining them with Medicare Part D at the same pharmacy transaction. You must choose one or the other for each prescription fill. GoodRx discounts do not count toward your Part D out-of-pocket cap. In some cases, GoodRx pricing for common generics may be lower than your Part D copay, especially if you have not yet met your deductible, but using it means that spending does not count toward your $2,100 cap.