Definition
What Is a Mail-Order Pharmacy?
Last updated
A mail-order pharmacy is a licensed pharmacy that fills prescriptions and ships them directly to your home, typically for maintenance medications taken regularly for chronic conditions, rather than requiring an in-person pickup at a retail location. Many insurance plans, including Medicare Part D plans, offer access to a designated mail-order pharmacy, sometimes with different cost-sharing than a retail pharmacy for the same drug.
How it affects what you pay
Mail-order pharmacies often provide extended supplies, commonly a 90-day supply, of maintenance medications, and some insurance plans price that larger mail-order supply at a lower total cost-sharing amount than the equivalent quantity purchased through multiple retail fills (Medicare.gov, Drug plan rules). Whether mail order is actually cheaper depends entirely on your specific plan's benefit design, so it's worth comparing your plan's mail-order copay against its retail copay for the same drug and quantity before assuming one is better. Medicare notes that Part D plans generally must give you access to a mail-order pharmacy option (Medicare.gov, What pharmacies can I use?).
Example
Consider a hypothetical maintenance medication a person takes daily for a chronic condition. Filling a 90-day supply through mail order might carry a different total copay than filling three separate 30-day supplies at a retail pharmacy, depending on the specific plan's cost-sharing structure for each channel. This is a general illustration, not real plan pricing.
Trade-offs beyond price
Mail order requires planning ahead, since shipping takes time and you won't be able to walk in and pick up a forgotten refill the same day. It generally works best for stable, ongoing prescriptions rather than new or short-term medications, where a local pharmacy visit and same-day pickup may be more practical. Our guide on local pharmacy vs mail order: which is cheaper? compares both options in more depth, including how a 90-day supply factors into the comparison.
Checking your plan's mail-order option
Ask your insurer or Part D plan which mail-order pharmacy is designated for your plan, and compare its pricing against your preferred retail pharmacy for your specific medications. Compare prescription prices on BetterBuyRx to check retail pricing alongside your mail-order option before deciding.
Setting up mail order
If you decide mail order makes sense for a maintenance medication, ask your doctor to write a prescription for the appropriate supply length, and confirm with your plan how refills and automatic renewal work. Search your medication on BetterBuyRx periodically to make sure mail order still remains the better-priced option as your plan or pricing changes over time.
Frequently asked questions
Is mail-order pharmacy cheaper than a local pharmacy?
It can be, especially for a 90-day supply of a maintenance medication, since some plans offer lower cost-sharing for mail order. It's not automatic, though, so it's worth comparing your specific plan's mail-order and retail pricing.
How long does mail-order delivery usually take?
It varies by pharmacy and plan, but allow enough lead time before you run out of your current supply, since mail order isn't as immediate as picking up a prescription in person.
Can I use mail order for any prescription?
Typically it works best for maintenance medications you take regularly. Short-term prescriptions, like antibiotics for an infection, are usually better suited to a local retail pharmacy where you can pick them up the same day.
Sources
Compare prices & find savings
This page is for cost and savings education only. It is not medical advice. Talk to your doctor or pharmacist about your specific medications and coverage. Prices vary by pharmacy, location, quantity, and eligibility.
Related terms & guides
- Local Pharmacy vs Mail Order: Which Is Cheaper?
Mail order and local pharmacy prices both vary by drug and plan. See how they compare, plus when each option tends to make more sense.
- What Is a 90-Day Supply?
90-day supply definition: what it means for a prescription, how it can lower cost-sharing per dose, and when it may not be the cheaper option.
- What Is a Specialty Pharmacy?
Specialty pharmacy definition: what makes a drug 'specialty,' why these medications need extra handling, and how it affects your cost.