Do You Need Part D With Plan G or Plan N in 2026–2027?
Bottom Line
Plan G and N exclude Part D; a standalone drug plan usually helps unless other insurance pays at least as much for drugs, on average. Neither Medigap plan pays Part D copays; compare prescription and pharmacy costs.
Usually, yes: if you have Plan G or Plan N and no other creditable prescription coverage, a standalone Part D plan fills the drug-coverage gap. These Medicare Supplement Insurance policies, also called Medigap, do not include Part D. Other creditable drug coverage may let you delay Part D without a late enrollment penalty.
If you also own a business and are considering SBA financing, life insurance for an SBA loan is a separate topic to discuss with your lender, unrelated to Medicare coverage.
How the three pieces work together
As you explore Medicare prescription drug coverage, distinguish the jobs of each policy:
- Original Medicare: Part A provides hospital insurance; Part B provides medical insurance.
- Plan G or Plan N: Supplements Original Medicare by paying specified deductibles, copayments and coinsurance.
- Standalone Part D: Adds prescription coverage, with its own covered-drug list and costs.
Medicare Advantage with drug coverage combines medical and drug benefits through a different coverage arrangement. Medigap cannot pay Medicare Advantage cost sharing. For someone keeping Original Medicare and Medigap, the complementary drug product is standalone Part D.
There is one important distinction: Part B covers some outpatient drugs, including many provider-administered injections and infusions. Medigap can help with the associated Part B coinsurance, according to the policy’s benefits. That limited protection does not replace Part D for other prescriptions.
Plan G versus Plan N: compare medical costs first
Understanding what Medicare Plan G covers helps you separate its benefits from the insurer’s quoted premium. Regular Plan G covers the Part A deductible and Part B coinsurance and excess charges, but leaves the Part B deductible to you.
When reviewing what Medicare Plan N covers, weigh its visit copays and lack of Part B excess-charge coverage before comparing monthly premiums. It also covers the Part A deductible.
| Medical expense | Regular Plan G | Plan N |
|---|---|---|
| Part B deductible | You pay | You pay |
| Part B coinsurance after the deductible | Covered | Covered, except specified visit copays |
| Some office visits | Covered after Part B deductible | Up to $20 |
| Emergency room visit without inpatient admission | Covered after Part B deductible | Up to $50 |
| Part B excess charges | Covered | Not covered |
The table excludes high-deductible Plan G. Massachusetts, Minnesota and Wisconsin standardize Medigap differently.
Neither plan pays your Part D deductible or prescription copays. If your Plan N quote is lower, compare the annual premium difference with the medical costs you would retain.
For Plan N, ask whether your doctors accept assignment—Medicare’s approved amount as full payment. Providers who do not may charge more.
Request written Medigap quotes for the same effective date; premiums vary by insurer and location even for the same standardized benefits.
When existing drug coverage may be enough
An existing drug benefit is creditable when its expected average payments meet or exceed those under Medicare drug coverage. Confirm its status before deciding to postpone Part D.
- Employer, union or retiree coverage: Ask for the current creditable-coverage notice and keep it. Check with the benefits administrator before adding Part D: enrollment could affect health and drug coverage for you, your spouse or dependents.
- VA benefits: VA drug coverage can support delaying Part D. A separate Part D plan may still be useful for prescriptions from non-VA doctors filled through participating local pharmacies. Compare that access with the added premium.
- TRICARE For Life: It includes prescription coverage through the TRICARE Pharmacy Program, which is creditable. Part D is not required to have that drug coverage. Compare the formularies and costs before adding another plan.
A pharmacy discount card or discount website is not creditable drug insurance, even if it lowers a particular prescription’s cash price.
What if you rarely take medication?
Part D options when you rarely take medication still deserve comparison. Without other creditable coverage, look at low-premium plans available where you live, their pharmacy access and the cost of any prescriptions you do take. Low current spending does not remove the enrollment decision.
After your Initial Enrollment Period, going 63 consecutive days or longer without Part D or other creditable drug coverage can trigger a late enrollment penalty if you enroll later. It generally continues for as long as you have Part D; people receiving Extra Help do not pay it. You may also have to wait for an enrollment period to join.
Build a complete 2026 coverage budget
Add together your Part B premium, Medigap premium, Part D premium and expected medical and prescription spending. Include any Part A premium and income-related Medicare surcharges that apply.
For 2026, the standard Part B premium is $202.90 per month, and its annual deductible is $283. Higher-income beneficiaries may pay more for Part B and Part D.
Part D plans can have a deductible of up to $615 in 2026. Qualifying out-of-pocket spending on covered Part D drugs is capped at $2,100 for the year, including certain payments made on your behalf. Premiums and noncovered drugs remain separate expenses; the cap is not a limit on your entire Medicare budget.
If income and resources are limited, check eligibility for Extra Help before choosing coverage. It can help pay Part D premiums and other drug expenses.
Shop by prescriptions, pharmacies and annual cost
Use the official Medicare plan comparison tool to identify standalone drug plans for your ZIP code. Medicare’s tools estimate monthly and yearly costs using your prescriptions.
Review each finalist on four points:
- Exact drugs: Match each medicine’s name, strength, dosage form and quantity to the formulary. Check its tier and cost sharing; coverage differs among plans.
- Coverage restrictions: Check whether a drug requires advance approval, trying another drug first, or limits on the amount covered. These are prior authorization, step therapy and quantity limits. Discuss missing or restricted drugs with the prescriber and plan before enrolling; an exception request is not guaranteed approval.
- Pharmacy access: Compare your usual pharmacy with preferred network pharmacies and any suitable mail-order option. A pharmacy can be in network without offering the plan’s lowest cost sharing.
- Total spending: Compare premiums plus estimated prescription costs over the same period: a full year for January starts or remaining months for midyear starts. Check first-fill costs as well as the total. Avoid adding a deductible twice if it is already included in the estimate.
A lower premium is useful only alongside affordable access to the drugs and pharmacies you need. Confirm the finalists’ details in their current plan documents.
Coordinate enrollment and the coverage year
For most people first qualifying at 65, the Part D Initial Enrollment Period includes the three months before the birthday month, that month and the three months after. Annual enrollment runs October 15–December 7; elections during fall 2026 generally take effect January 1, 2027.
If you involuntarily lose creditable drug coverage, or it stops being creditable, a Special Enrollment Period generally lasts two full months after the month of loss or notification, whichever is later. Arrange the new start date promptly to avoid a coverage gap.
Annual Medicare open enrollment does not generally guarantee the right to buy or switch Medigap without health underwriting. Federal Medigap open enrollment is a separate, one-time six-month period starting the first month you have Part B and are 65 or older. Other guaranteed-issue protections and state rules may apply.
For 2027 coverage, use 2027 plan documents and costs. The dollar amounts above describe 2026 coverage.
Your next step is to compare Part D plans using your prescriptions: gather your complete drug list, dosages, refill quantities, preferred pharmacies and any creditable-coverage notice. Save your leading full-year comparisons alongside your current Medigap premium or written Plan G or Plan N quotes, then confirm coverage start dates before enrolling.