Medicare covers Mycostatin, but the coverage depends on which part of Medicare you have and how the medication is prescribed
Mycostatin (nystatin) is an antifungal medication used to treat yeast infections in the mouth, throat, and digestive tract. Medicare Part B covers Mycostatin when a doctor prescribes it as an injection or intravenous infusion in a hospital or outpatient setting. Medicare Part D, the prescription drug plan, covers Mycostatin tablets and oral suspension when filled at a pharmacy, though your out-of-pocket cost depends on which plan you chose and which tier the drug is on.
The key difference is where you receive the medication. If your doctor gives it to you during an office visit or in a hospital, Part B typically pays. If you pick it up at a pharmacy, Part D pays. Some people have both parts; others have only one. Knowing which part covers your situation helps you understand what you will owe.
Key Takeaways
- Medicare Part B covers Mycostatin injections and infusions given in a hospital or doctor's office.
- Medicare Part D covers Mycostatin tablets and liquid suspension picked up at a pharmacy, with your cost depending on your specific plan.
- Your out-of-pocket cost for pharmacy Mycostatin includes your deductible, copay, or coinsurance, which varies by plan.
- If Mycostatin is not on your Part D plan's formulary, you can ask your doctor to request a coverage exception or switch to a different plan during open enrollment.
How Medicare Part B covers Mycostatin in medical settings
Part B covers Mycostatin when a doctor or nurse administers it to you in a hospital, outpatient clinic, or doctor's office. This includes injections and intravenous infusions. You pay 20 percent of the Medicare-approved amount after you meet your Part B deductible (which is $240 in 2024, though this amount changes yearly).
If you receive Mycostatin as an inpatient in a hospital, your Part A coverage applies instead, and you pay a hospital deductible plus daily copays depending on how long you stay. Ask the hospital billing office which part will cover your medication before you receive it, so you know what to expect on your bill.
How Medicare Part D covers Mycostatin at the pharmacy
Part D covers Mycostatin tablets and oral suspension when you fill a prescription at a pharmacy. Your cost depends on your specific plan and which tier Mycostatin is placed on. Most plans put Mycostatin on a lower tier because it is an older, generic medication, which usually means a lower copay—often $5 to $15 per prescription.
You will pay your plan's deductible first (if your plan has one), then your copay or coinsurance for each prescription. After you and your plan spend a combined amount on covered drugs, you enter the coverage gap, where you pay a higher percentage. Once your out-of-pocket costs reach a certain limit, catastrophic coverage begins and your costs drop again.
Not all Part D plans cover Mycostatin on their formulary, which is the list of drugs the plan pays for. If your plan does not cover it, you have options: ask your doctor to request a coverage exception, switch to a different Part D plan during the annual open enrollment period (October 15 to December 7), or pay out of pocket and ask if the pharmacy offers a discount.
What to do if your plan does not cover Mycostatin
If you receive a notice that Mycostatin is not covered, or if your pharmacy tells you it is not on your plan, contact your Part D plan directly. Many plans will cover a medication not on the formulary if your doctor submits a prior authorization or coverage exception request. This is a formal request explaining why you need this specific medication instead of an alternative.
Your doctor's office usually handles this request, but you can call your plan and ask them to send the form to your doctor. The process typically takes 24 to 72 hours. If the plan denies the request, you can file an appeal, though this takes longer.
If you cannot get coverage through your current plan, you can switch to a different Part D plan during open enrollment. Use the Medicare Plan Finder tool on Medicare.gov to see which plans in your area cover Mycostatin and compare their costs. You can also call 1-800-MEDICARE to speak with someone who can help you search.
Generic nystatin versus brand-name Mycostatin
Mycostatin is the brand name, but the medication is also sold as generic nystatin. Medicare Part D plans almost always cover generic nystatin because it costs less. If your plan does not cover brand-name Mycostatin, generic nystatin will likely be covered at a lower cost.
Generic and brand-name nystatin work the same way. Ask your doctor or pharmacist whether generic nystatin would work for you. If you have a reason to use the brand name—for example, an allergy to an ingredient in the generic version—your doctor can request a coverage exception for the brand-name product.
Out-of-pocket costs and how to estimate yours
Your actual cost for Mycostatin depends on your specific plan. To find your cost before you fill the prescription, call your Part D plan or use their website to look up the drug. You will need your plan name and member ID, which are on your Medicare card.
When you call or search online, you will see the copay or coinsurance amount for that tier. If Mycostatin is on tier 1 or 2 (generic or preferred brand), your copay is usually $5 to $15. If it is on a higher tier, the copay may be $30 to $100 or more. Some plans use coinsurance instead of a copay, meaning you pay a percentage of the cost—for example, 20 percent—rather than a flat amount.
If cost is a concern, ask your pharmacist about discount programs. GoodRx, SingleCare, and other discount cards sometimes offer lower prices than your insurance copay, especially for generic nystatin. You can use these cards even if you have Medicare, though you cannot submit the claim to Medicare afterward.
When to contact Medicare or your plan
Contact your Part D plan if Mycostatin is not covered, if the copay seems unusually high, or if you want to know whether a coverage exception is possible. You can reach your plan through the phone number on your insurance card or through Medicare.gov.
Contact Medicare directly at 1-800-MEDICARE if you have questions about whether Part B or Part D should cover your medication, if you want to switch plans, or if you need help understanding your coverage. Medicare representatives can also help you file an appeal if your plan denies coverage.
If you are having trouble affording Mycostatin even with insurance, ask your doctor about patient information programs run by the manufacturer or nonprofit organizations. Some programs offer free or reduced-cost medication to people who meet income requirements.
Frequently Asked Questions
Does Medicare cover Mycostatin for oral thrush?
Yes. If your doctor prescribes Mycostatin tablets or suspension for oral thrush (a yeast infection in the mouth), Part D covers it at a pharmacy. If the medication is given to you in a hospital or doctor's office, Part B covers it. Your cost depends on your plan and which tier the drug is on.
Will Medicare pay for Mycostatin if I have a Medigap or Medicare Advantage plan?
Yes, but the cost structure is different. Medigap plans work alongside Original Medicare and Part D, so coverage is similar to what is described here. Medicare Advantage plans include drug coverage built in, and Mycostatin coverage varies by plan. Check your plan documents or call the plan to see what tier Mycostatin is on and what your copay will be.
What if my doctor prescribes a brand-name Mycostatin but my plan only covers generic nystatin?
Ask your doctor to request a coverage exception if there is a medical reason you need the brand name. If the plan denies it, you can pay out of pocket for the brand name or ask your pharmacist about switching to generic nystatin. Many people use generic nystatin with no problems.
Can I use a GoodRx coupon instead of my Medicare Part D?
Yes, you can choose to use a discount card like GoodRx instead of your insurance. Compare the GoodRx price to your Part D copay and use whichever is lower. You cannot submit both to Medicare, so pick one payment method before the pharmacist rings up the prescription.
How long does a prior authorization for Mycostatin take?
Most prior authorization requests are decided within 24 to 72 hours. Ask your doctor's office for an expedited review if you need the medication urgently. If the plan denies the request, you have the right to appeal, though the appeal process takes longer—usually one to two weeks.