No. Medigap does not cover prescription drugs. Every Medicare Supplement policy sold since 2006 leaves the pharmacy counter entirely to a separate Medicare drug plan, Part D, and the two are bought, priced and renewed independently (Medicare.gov).
That surprises a lot of people, because “supplement” sounds like it should fill every gap. It fills one specific set of gaps: the deductibles, coinsurance and copayments that Original Medicare charges for hospital and medical care under Parts A and B. Drugs you take at home were never part of Parts A and B, so they were never part of what Medigap supplements.
This post explains what Medigap actually pays for, what the Part D half of the pairing looks like in 2026, what it costs to skip it, and the two situations where the “no” has an asterisk.
What a Medigap policy does and does not cover
Original Medicare pays most of the bill for hospital and doctor care, then leaves you a deductible here and a 20% coinsurance there. A Medigap policy is a private insurance contract that pays some or all of those leftovers, depending on the plan letter. Plan G, for example, pays everything Original Medicare leaves behind except the Part B deductible, which is $283 in 2026 (CMS).
What it does not touch, by Medicare.gov’s own list:
| Not covered by any current Medigap plan | Where that coverage comes from |
|---|---|
| Prescription drugs you take at home | A standalone Medicare drug plan (Part D) |
| Long-term care, such as a nursing home stay for custodial care | Long-term care insurance, Medicaid, or your own savings |
| Routine vision and dental care, glasses | Standalone dental or vision plans, or out of pocket |
| Hearing aids | Out of pocket, or a plan that includes a hearing benefit |
| Private-duty nursing | Out of pocket |
Source: Medicare.gov, What Medigap covers.
One nuance worth knowing. Drugs administered in a doctor’s office or hospital outpatient setting, such as an infusion or an injection the nurse gives you, are usually billed under Part B, not Part D. Medigap does help with those, because they are Part B cost-sharing. The oral medication you pick up at the pharmacy afterwards is Part D, and Medigap does not.
Why Medigap plans stopped including drug coverage
Before 2006, three standardized Medigap plans, H, I and J, carried a limited prescription benefit. When Medicare Part D launched on January 1, 2006, the law prohibited selling new Medigap policies with drug coverage, because Part D was now the designated way to insure prescriptions (CMS, Choosing a Medigap Policy, March 2026).
CMS’s guide puts it in one sentence: “Medigap plans sold after 2005 don’t include prescription drug coverage. If you want prescription drug coverage, you can join a separate Medicare drug plan (Part D).”
The result is the pairing almost every Medigap policyholder carries today:
| Layer | What it is | What it pays for |
|---|---|---|
| Original Medicare (Parts A and B) | The federal program | Hospital, skilled nursing, doctors, outpatient care, Part B drugs |
| Medigap (Plan A through Plan N) | Private supplement | The deductibles, coinsurance and copayments Parts A and B leave behind |
| Part D | Private standalone drug plan | Prescription drugs from the pharmacy, under the plan’s formulary |
Three bills, three separate decisions. The Medigap letter you pick has no effect on your drug costs, and the Part D plan you pick has no effect on your hospital costs.
What Part D costs in 2026
Because the drug half of the pairing is where the year-to-year changes land, the current figures matter. All of these are 2026 plan-year numbers from CMS.
| 2026 Part D figure | Amount | Source |
|---|---|---|
| National base beneficiary premium | $38.99/month | CMS Part D bid fact sheet, July 2025 |
| Defined standard deductible | $615 | CMS CY2026 Rate Announcement, Table V-2 |
| Annual out-of-pocket cap on covered drugs | $2,100 | CMS CY2026 Rate Announcement, Table V-2 |
| National average monthly bid amount | $239.27 | CMS Part D bid fact sheet, July 2025 |
A few things the table does not say on its own.
The $38.99 is not your premium. It is the national base figure CMS uses for the penalty calculation and for setting the government’s share. Your actual plan premium is whatever the plan you choose charges, and in Florida that ranges widely between plans. CMS has capped growth in the base beneficiary premium at 6% a year through 2029 under the Inflation Reduction Act’s premium stabilization rule (CMS).
The $2,100 cap is the big one. Once your out-of-pocket spending on covered Part D drugs reaches $2,100 in 2026, you pay $0 for covered drugs for the rest of the calendar year (CMS CY2026 Announcement). For someone on an expensive brand-name drug, that cap is the difference between a manageable year and a ruinous one, and it exists only if you are enrolled in Part D. Medigap gives you no equivalent protection at the pharmacy.
Plans can charge less than the standard deductible. $615 is the defined standard benefit; many plans set a lower deductible or waive it on generic tiers. That is a plan-by-plan feature to compare, not something to assume.
You can spread the cost across the year. Every Part D plan must offer the Medicare Prescription Payment Plan, a voluntary option that bills you monthly for your out-of-pocket drug costs instead of charging you at the pharmacy. It does not lower what you owe; it changes when you pay it (Medicare.gov).
What happens if you skip Part D with a Medigap policy
This is where people with Medigap get hurt, because nothing forces the decision. There is no Part D enrollment on the Medigap application and no penalty on the Medigap side for going without it. The penalty lives entirely on the Part D side, and it is permanent.
Medicare.gov’s rule: the late enrollment penalty is “1% times the national base beneficiary premium ($38.99 in 2026) times the number of full, uncovered months you were eligible to join Medicare drug coverage but didn’t,” rounded to the nearest $0.10 and “added to your premium for as long as you have Medicare drug coverage, even if you switch plans” (Medicare.gov). The clock starts after any gap of 63 days or more without Part D or other creditable coverage.
What that looks like at 2026 rates:
| Months without creditable drug coverage | Penalty percentage | Monthly penalty (2026) | Added per year |
|---|---|---|---|
| 14 (Medicare.gov’s own example) | 14% | about $5.50 | about $66 |
| 36 (three years) | 36% | about $14.00 | about $168 |
| 60 (five years) | 60% | about $23.40 | about $281 |
Two features make this worse than the table suggests. The penalty is recalculated every year against the new base beneficiary premium, so it generally rises over time. And it never expires: a 68-year-old who enrolls after three years without coverage pays the 36% surcharge at 78 and at 88.
The Part D penalty calculator runs the exact Medicare.gov formula against the months you enter and the current base premium, so you can see your own figure before it becomes a line on a bill.
What counts as creditable coverage. Drug coverage from a current employer or union plan, TRICARE or the VA generally counts as creditable, and the months you held it do not count against you. The plan or employer is required to tell you in writing each year whether its drug coverage is creditable. Keep those notices. When you later enroll in Part D, they are how you prove there was no gap.
The pre-2006 exception: Medigap plans H, I and J
A small number of Floridians, mostly people who enrolled in Medicare in the 1990s or early 2000s, still hold a Medigap plan H, I or J with its original drug benefit. CMS’s guide confirms that “Plans E, H, I, and J are no longer sold, but if you already have one, you can generally keep it” (CMS, Choosing a Medigap Policy).
If that is you, three rules apply:
- You cannot run both. The guide is explicit: if your Medigap policy covers prescription drugs and you join a Medicare drug plan, you must tell the Medigap carrier, and it will remove the drug coverage and adjust your premium.
- Your carrier must tell you each year whether the Medigap drug benefit is creditable. If it is, you can move to Part D during Open Enrollment, October 15 to December 7, without a penalty, as long as you do not let the old coverage lapse before the new plan starts on January 1.
- If it is not creditable, you probably already owe a penalty, and it grows for every additional month you wait.
CMS’s own guidance is that a Medigap drug benefit that fit you in 2006 may no longer fit if your premium has risen or you take more medications than you did then. The $2,100 cap alone is a reason to compare, since the legacy plans never had anything like it.
Timing: when a Medigap holder can join or change Part D
Because Medigap and Part D are separate, their enrollment windows are separate too, and the one that trips people up is the Part D window.
| Situation | Part D window | What to do about the Medigap side |
|---|---|---|
| Turning 65, enrolling in Original Medicare for the first time | 7-month Initial Enrollment Period around your 65th birthday month | Buy Medigap in your 6-month Medigap Open Enrollment Period, which starts the month you are 65 and enrolled in Part B |
| Already have Medigap, want to change Part D plans | October 15 to December 7, new plan starts January 1 | Nothing. Your Medigap policy is unaffected by a Part D switch |
| Leaving Medicare Advantage for Original Medicare plus Medigap | Join a standalone Part D plan in the same window you leave Advantage; do not let a 63-day gap open | Apply for Medigap first and confirm acceptance, since Florida carriers can underwrite outside a protected window |
| Losing employer drug coverage after 65 | 63 days from the loss to join Part D without penalty | Florida gives a 2-month Medigap window after group coverage ends |
That third row deserves a sentence of its own. A Medicare Advantage plan almost always bundles drug coverage, so the day you leave it for Original Medicare, your drug coverage ends with it. If the standalone Part D plan is an afterthought, the 63-day clock starts without you noticing. We walk through the full sequence in switching from Medicare Advantage to Medigap in Florida.
For a visual of all the windows side by side, the enrollment timeline tool lays them out against your own dates.
The income surcharge applies to Part D too
Most people know the Part B premium rises with income. Fewer know that Part D carries its own income-related monthly adjustment, and it is billed by Medicare, not by the plan, so it shows up even on a plan with a low premium.
For 2026, based on 2024 tax returns (CMS):
| 2024 income, single filer | 2024 income, joint filer | Added to Part D each month in 2026 |
|---|---|---|
| $109,000 or less | $218,000 or less | $0.00 |
| $109,001 to $137,000 | $218,001 to $274,000 | $14.50 |
| $137,001 to $171,000 | $274,001 to $342,000 | $37.50 |
| $171,001 to $205,000 | $342,001 to $410,000 | $60.40 |
| $205,001 to under $500,000 | $410,001 to under $750,000 | $83.30 |
| $500,000 and above | $750,000 and above | $91.00 |
The two-year lookback is the trap. A property sale, a Roth conversion or a large retirement account withdrawal in 2024 lands on your 2026 Part B and Part D bills together. The IRMAA calculator shows both surcharges for an income you enter, and the Social Security Administration has a form, SSA-44, for appealing when a life-changing event such as retirement has since dropped your income.
Putting the three bills together
A Medigap holder’s monthly Medicare cost in 2026 is the sum of three things, two of which are set by CMS and one by the market:
| Line | 2026 amount | Set by |
|---|---|---|
| Part B premium | $202.90 standard, more above $109,000 income | CMS |
| Medigap premium | Varies by plan letter, carrier, age at purchase and county | The carrier, under Florida rating rules |
| Part D premium | Varies by plan, plus the income adjustment above | The plan, with the surcharge set by CMS |
Then the cost-sharing that sits under those premiums: the $283 Part B deductible if your Medigap plan does not cover it, and the Part D deductible and copays up to the $2,100 cap. The annual Medicare cost estimator adds all of that up for a set of inputs you choose.
What this looks like in Florida
Two Florida specifics change how the pairing is priced here.
Medigap is priced by issue age. The Florida Department of Financial Services states that all Florida Medicare Supplement policies must be sold on an issue-age basis, so the premium is tied to how old you were when you bought the policy rather than rising each birthday (Florida DFS). Part D has no such rule; its premium is whatever the plan files for the year, and it can change every January. Actual Medigap quotes by age, plan letter and county are published in the state’s CHOICES rate comparison tool, and you can see how the plan letters differ in our Plan G versus Plan N comparison.
The Part D menu is long. CMS’s 2026 landscape lists 133 Medicare Advantage and Part D plan options available in Hillsborough County alone (CMS CY2026 Landscape). A Medigap holder only shops the standalone drug plans within that list, but the point stands: the right Part D plan is the one whose formulary carries your specific drugs at a tier you can afford, and that changes from year to year as formularies are re-filed. The Annual Notice of Change your plan mails in September is where the next year’s changes are disclosed; our guide to reading the Annual Notice of Change shows what to look for.
Neither of these changes the headline answer. A Tampa retiree with Plan G and a Sarasota retiree with Plan N have the same drug coverage from their Medigap policy, which is none, and both need a Part D plan matched to their own prescription list.
A note on Plans C and F
People sometimes ask whether the “fuller” Medigap plans, C and F, covered drugs. They did not. What made them different was that they paid the Part B deductible, and federal law stopped that for anyone new to Medicare on or after January 1, 2020. Plans D and G took their place with the same benefits minus the Part B deductible (CMS, Choosing a Medigap Policy). Whichever letter you hold, old or new, the drug answer is unchanged. We cover the current letter choice in how the parts of Medicare fit together.
Where to start
If you already have a Medigap policy, check three things this month:
- Confirm you have a Part D plan or creditable coverage in force. If there has been a gap of 63 days or more, the penalty is already accruing, and enrolling now stops it from growing.
- Compare your drug list against your plan’s 2027 formulary during Open Enrollment, October 15 to December 7. A Part D switch does not touch your Medigap policy.
- Check whether your 2024 income puts you over $109,000 single or $218,000 joint. If it does and your income has since fallen because of retirement, an SSA-44 request may reduce both surcharges.
If you are choosing a Medigap policy for the first time, treat the Part D decision as part of the same conversation rather than something to handle later. Virginia Barausky walks through the plan letters, the Florida rate tables and the Part D formulary for your prescriptions in a single sitting. There is no cost for the first conversation and nothing to buy. Schedule a call when you are ready.