Does Medicare cover Lantus in Florida?

What Lantus is used for

Lantus is a long-acting insulin injected once a day. Its FDA label covers improving blood sugar control in adults and children with type 1 diabetes and in adults with type 2 diabetes.

This page explains Medicare coverage only. Questions about whether Lantus is right for you belong with your prescriber.

Which part of Medicare covers Lantus

Lantus comes in vials and SoloStar pens that you inject yourself, so it's a Part D drug. Part B covers insulin only when it's used in an insulin pump covered as durable medical equipment, and the same monthly cap applies there, with no Part B deductible. Long-acting insulin like Lantus isn't used in a pump.

Is Lantus on Medicare's negotiated-price list?

No. Lantus is not among the drugs CMS has selected for the Medicare Drug Price Negotiation Program so far: the 10 drugs with negotiated prices since January 1, 2026, the 15 with negotiated prices starting January 1, 2027, and the 15 CMS selected on January 27, 2026, for prices that take effect in 2028. The insulin on the 2026 list is insulin aspart (NovoLog and Fiasp), a mealtime insulin, not Lantus.

Biosimilars and substitution in Florida

FDA has licensed biosimilars to Lantus, including Semglee (insulin glargine-yfgn), the first interchangeable biosimilar insulin, approved in July 2021, and Rezvoglar (insulin glargine-aglr). A plan may cover a biosimilar or unbranded insulin glargine instead of Lantus; the monthly cap applies to whichever covered insulin you get.

In Florida, s. 465.0252 lets a pharmacist dispense an interchangeable biosimilar in place of the prescribed biologic only if FDA has rated it interchangeable and your prescriber hasn't expressed a preference against substitution, in writing, verbally or electronically. The pharmacist must tell you about the substitution and keep a record of it for at least two years. If you'd rather stay on the product you know, say so at the counter and ask your prescriber to note it.

How the insulin cap works

• The cap is $35 for each one-month supply of each covered insulin, and the Part D deductible doesn't apply.
• If you fill a two- or three-month supply, the cap applies to each month in the fill.
• The cap applies to insulins on your plan's formulary. If your plan doesn't cover Lantus, ask whether it covers another insulin glargine, or request an exception.
• Extra Help can make your insulin copay even lower.

More in the Medicare insulin cap in Florida.

What you pay for Lantus in 2027: the out-of-pocket cap

Your cost for Lantus depends on your plan: its deductible, the tier it puts the drug on, and whether you use a preferred pharmacy. This site doesn't list plan costs; your plan's formulary and Evidence of Coverage do. What Medicare sets for everyone with Part D is the limit:

• 2027 out-of-pocket cap: $2,400 (it was $2,100 in 2026). Once what you pay for covered Part D drugs (deductible, copays and coinsurance) reaches the cap, you pay nothing more for covered Part D drugs for the rest of 2027.
• The maximum Part D deductible for 2027 is $700. No plan can set a higher deductible.
• Only covered drugs count. If your plan doesn't cover Lantus and you pay cash, or you use a discount card instead of your plan, that spending doesn't count toward the cap.

Spreading the cost: the Medicare Prescription Payment Plan

The Medicare Prescription Payment Plan lets you pay your Part D drug costs in monthly bills from your plan across the calendar year instead of all at once at the pharmacy. Medicare.gov says there's no cost to participate, but it doesn't lower your drug costs; it only changes when you pay. It helps most when your costs are high early in the year. To join, call your plan or use its website. More in What is the Medicare Prescription Payment Plan?

Extra Help with Lantus

Extra Help (the Low-Income Subsidy) is a federal program that lowers Part D premiums, deductibles and copays. For 2027, CMS caps Extra Help copays for covered drugs at $5.80 for a generic and $14.40 for a brand-name drug, and some people with full Medicaid pay less. You get Extra Help automatically if you have full Florida Medicaid, SSI or a Medicare Savings Program (QMB, SLMB or QI-1, which you apply for through ACCESS Florida, run by the Department of Children and Families). Otherwise, apply through Social Security at ssa.gov/extrahelp or 1-800-772-1213 (TTY 1-800-325-0778). Florida has no state drug-assistance program for seniors, so Extra Help is the main public help with Part D costs. See Extra Help in Florida and does Florida have a state drug program for seniors?

Getting Lantus covered in Florida

Florida is its own Part D region (PDP Region 11), so each standalone Part D plan sold here is offered in all 67 counties. For 2027, CMS lists 11 standalone Part D plans from 6 companies in Florida. Every county also has Medicare Advantage plans open to everyone, from 7 in Monroe County to 52 in Hillsborough County. Each plan has its own formulary, so one plan's coverage of Lantus tells you nothing about another's. Your county's numbers are on Florida counties.

Hurricane season: The Lantus label says an opened vial or SoloStar pen can be used at room temperature, up to 86°F, for 28 days, and an in-use pen shouldn't go back in the refrigerator. Unopened insulin needs refrigeration, must be thrown away if it freezes, and must be protected from direct heat, so in a long outage your backup supply is what's at risk. Medicare.gov says that if you live in a declared disaster area, your drug plan can help you find another in-network pharmacy, replace drugs that were lost, damaged or left behind when you evacuated, and fill prescriptions at an out-of-network pharmacy when you can't reasonably reach a network one (keep your receipts). CMS guidance also expects Medicare drug plans to lift "refill-too-soon" limits after a federal disaster declaration. Florida's emergency-refill law (s. 252.358) makes insurers and HMOs licensed by the Office of Insurance Regulation allow early refills when your county is under a hurricane warning or a state of emergency, but it doesn't mention Medicare, so ask your Medicare plan directly. See early refills before a hurricane.

State Group Insurance retirees: if you keep State of Florida retiree coverage once you have Medicare, the State's secondary PPO or HMO plan includes prescription drug coverage the State says is creditable (as good as Part D), so you don't need a separate Part D plan, and the State's group Medicare Advantage (MA-PD) plans include Part D. Either way, Lantus follows the State plan's drug rules. The State says a retiree who cancels State coverage can't re-enroll later, so call People First (866-663-4735) before joining any outside Medicare plan. See Florida state retirees and Medicare.

Medicare and Florida Medicaid: if you have full Medicaid and Medicare, your Medicare drug coverage, not Medicaid, pays for Part D drugs like Lantus, and you get Extra Help automatically. In Florida, people with Medicare usually get full Medicaid through SSI, Medically Needy (share of cost) or long-term-care Medicaid: MEDS-AD, the program for aged and disabled adults, leaves out people on Medicare unless they're getting nursing-home, hospice or home and community-based care. See Florida Medicaid and Medicare.

Plans ending in 2027: at least 302,773 Floridians in regular Medicare Advantage plans that are leaving or ending must choose new coverage for 2027. If yours is one, your plan sends a non-renewal letter and you have a special enrollment period through February 28, 2027; to keep Lantus covered without a gap, choose new drug coverage by December 31, 2026. See plans ending in 2027.

Snowbirds: a Florida Part D plan's service area is Florida, and you can belong to only one Part D plan, tied to your permanent home. If you spend part of the year in another state, ask the plan whether its pharmacy network includes pharmacies where you'll be, or whether it offers mail order, before you leave with your Lantus. A Part D plan disenrolls you only after more than 12 months away. See snowbird prescriptions.

How to check whether a plan covers Lantus

1. Write down the exact drug. Name, strength and how often you take it. Vials and SoloStar pens are separate formulary entries, and a plan may prefer a biosimilar insulin glargine.
2. Look it up in each plan's formulary. Enter your drugs and ZIP code on PlanMatch or Medicare.gov's Plan Finder to see which plans list Lantus and any rules.
3. Read the rules next to the drug. Prior authorization, step therapy or quantity limits mean your prescriber may need to send the plan information before it pays.
4. Check your 2027 notice. Your plan's Annual Notice of Change says whether Lantus stays on the formulary next year. Open Enrollment runs October 15 to December 7, 2026, for coverage starting January 1, 2027.
5. Get help if you want it. You can request a call from a licensed insurance agent, who can compare plans from the companies they work with, or call 1-800-MEDICARE (1-800-633-4227, TTY 1-877-486-2048) for information on all of your options.

If your plan doesn't cover Lantus, you or your prescriber can ask for a coverage determination or a formulary exception. Once the plan has your prescriber's supporting statement, it generally must decide within 72 hours, or 24 hours if your prescriber says waiting could seriously harm your health. New members can usually get a one-time transition supply of a drug they were already taking while they ask for an exception or switch. See How do I appeal a Medicare denial in Florida?

Sources

• National Library of Medicine — DailyMed: Lantus prescribing information (FDA label, including storage)
• Medicare.gov — Insulin (Part D and Part B insulin cost limit)
• FDA — Purple Book: licensed biological products, including interchangeable insulin glargine biosimilars
• Florida Statutes — s. 465.0252, substitution of interchangeable biosimilar products
• Florida Division of State Group Insurance — Frequently asked questions: retirees (Medicare, Part D, re-enrollment)
• Florida DCF — ESS Program Policy Manual, chapter 2000 (MEDS-AD, QMB, SLMB, QI-1)
• Medicare.gov — Drug coverage (Part D)
• CMS — Selected drugs and negotiated prices (Medicare Drug Price Negotiation Program; data file of November 2, 2026)
• CMS — CY 2027 Rate Announcement (2027 Part D out-of-pocket threshold, deductible and Extra Help copays)
• Medicare.gov — Medicare Prescription Payment Plan
• Social Security — Extra Help with Medicare prescription drug plan costs
• eCFR — 42 CFR 423.120 (formularies and transition fills)
• CMS — Medicare Advantage and Part D Landscape files, 2027 (PDP Region 11: Florida)
• Medicare.gov — Getting drugs in a disaster or emergency
• CMS — Pharmacy access during a federal disaster declaration: Q&As for Part D plan sponsors (2017)
• Florida Statutes — s. 252.358, emergency prescription refills

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