If your health plan uses Express Scripts as its pharmacy benefit manager, chances are you've seen "Express Scripts Pharmacy" or "home delivery" mentioned on your member portal, your Evidence of Coverage, or a card in your mailbox. For people who take a medication every day — blood pressure pills, cholesterol medication, thyroid hormone, insulin, or a maintenance inhaler — mail order can mean fewer trips to the counter and, in many plans, a lower cost per dose.
But the process trips people up in predictable places: not knowing which phone number actually reaches a live person, not understanding how a "90-day supply" interacts with refills and auto-refill, and not knowing what happens when a doctor's office doesn't respond to a fax. This guide walks through each part in plain language, using publicly available Express Scripts program information.
If your prescriber needs to submit paperwork before a drug can be filled at all, see our Express Scripts prior authorization guide for what that process looks like and how long it typically takes.
Table of Contents
- What Express Scripts Mail Order Pharmacy Actually Is
- Phone Numbers: Which One to Call
- Eligibility: Who Can Use Express Scripts Pharmacy
- Mail Order vs Retail Pharmacy vs Specialty Pharmacy (Accredo)
- 90-Day Supply Rules and What's Excluded
- How to Register and Transfer a Prescription, Step by Step
- Delivery Timelines
- Costs: Is Mail Order Actually Cheaper?
- Refills and Automatic Refill
- Renewing an Expired Prescription
- Common Mistakes That Delay Mail Order
- Decision Tree: Should You Switch to Mail Order?
- What to Do If Your Order Is Late or Missing
- Frequently Asked Questions
What Express Scripts Mail Order Pharmacy Actually Is
Express Scripts Pharmacy is the home delivery arm of Express Scripts, one of the largest pharmacy benefit managers (PBMs) in the United States, now operating under its parent company Evernorth. When an employer, union, health plan, or Medicare Part D plan contracts with Express Scripts to manage its pharmacy benefit, members of that plan typically gain access to Express Scripts Pharmacy as a home delivery option for maintenance medications.
This is different from a retail chain like CVS or Walgreens. There's no store to walk into. Prescriptions are filled at a licensed mail-order pharmacy facility and shipped to your home, a P.O. box, or another address you choose.
| Feature | What It Means |
|---|---|
| What It Is | Home delivery pharmacy built into an Express Scripts pharmacy benefit |
| Who Operates It | Express Scripts / Evernorth |
| Best For | Maintenance medications taken long-term (blood pressure, cholesterol, diabetes, thyroid, etc.) |
| Typical Supply Size | 90-day supply (up to 100 days on some plans) |
| Standard Shipping | Included at no extra cost on most plans |
| Support Availability | 24 hours a day, 7 days a week, including pharmacist access |
Phone Numbers: Which One to Call
Express Scripts supports thousands of different plan sponsors, so there isn't one universal number that's correct for every situation. Here's how to figure out which one applies to you.
| Purpose | Number |
|---|---|
| General Express Scripts Pharmacy customer service (24/7) | 1-800-282-2881 |
| Technical support / online account help | 1-800-711-5672 |
| Number on the back of your member ID card | Fastest route to your specific plan's team |
| Doctor's office faxing a new prescription | Ask your plan's member services line for the current fax number for your account, since fax routing can differ by plan |
Tip: If you're on a Medicare Advantage, Medicaid managed care, or TRICARE plan, your Express Scripts mail order phone number is often plan-specific. Look at the back of your member ID card first — that number routes you directly to the team that handles your specific benefit, insurance status, and formulary.
Eligibility: Who Can Use Express Scripts Pharmacy
Not everyone can sign up for Express Scripts Pharmacy. Eligibility depends entirely on whether your specific pharmacy benefit is administered by Express Scripts — it isn't a pharmacy you can walk into or a service you can purchase independently the way you might sign up for a discount card.
- Your health plan lists Express Scripts (or Evernorth) as its pharmacy benefit manager
- Your prescription is for a maintenance medication typically taken on an ongoing basis
- Your medication is not marked "NM" (not mailed) on your plan's drug list
- You have a valid, active prescription or a doctor willing to send one electronically
- Your plan uses a different pharmacy benefit manager entirely
- Your medication is a short-term prescription (like a 5-day antibiotic course)
- Your drug is restricted from mail delivery under your state's controlled substance rules
- You need a same-day or urgent fill, which mail order isn't built for
If you're not sure whether your plan includes an Express Scripts pharmacy benefit, registering online at express-scripts.com takes only a couple of minutes and will confirm eligibility either way.
Mail Order vs Retail Pharmacy vs Specialty Pharmacy (Accredo)
People often assume "mail order" covers everything, but Express Scripts actually splits prescriptions into three separate paths depending on the medication.
| Pharmacy Type | Best For | Typical Supply | Delivery Method |
|---|---|---|---|
| Retail Pharmacy (in-network) | Short-term prescriptions, urgent fills, medications you need same-day | 30 days (typical) | Pick up in person |
| Express Scripts Pharmacy (Home Delivery) | Non-specialty maintenance medications taken long-term | 90 days (up to 100 on some plans) | Mailed to your home or chosen address |
| Accredo (Specialty Pharmacy) | Complex, high-cost specialty medications (biologics, injectables, some oncology drugs) | Varies, often 30 days | Mailed, often with clinical support included |
Important: If your medication is a specialty drug, it will usually be routed to Accredo rather than standard Express Scripts Pharmacy home delivery. Accredo handles additional clinical coordination, including injection training and cold-chain shipping for medications that require refrigeration.
90-Day Supply Rules and What's Excluded
The core value proposition of mail order is consolidating three months of pills into a single order instead of three separate retail pickups. Most non-specialty maintenance medications qualify.
| Category | Mail Order Status |
|---|---|
| Maintenance medications (blood pressure, cholesterol, thyroid) | Eligible for 90-day supply |
| Long-term diabetes medications (metformin, some insulins) | Eligible for 90-day supply |
| Specialty Tier 5 medications | Excluded — routed to Accredo instead |
| Drugs marked "NM" (not mailed) on your formulary | Not available through mail order |
| Certain controlled substances | Case-by-case, subject to state and federal shipping rules |
| Compounded medications | Often excluded or requires a new, non-compounded prescription |
Your plan's specific formulary — the official "List of Drugs" — is the definitive source for what's excluded on your account. It's worth checking this before you ask your doctor to send a 90-day prescription, since an "NM" flag will bounce the order back.
How to Register and Transfer a Prescription, Step by Step
Confirm you're eligible
Register or log in at express-scripts.com or through the Express Scripts mobile app. This step alone confirms whether your plan includes a home delivery benefit.
Choose how to send your prescription
You have three practical options: ask your doctor to e-prescribe directly to Express Scripts Pharmacy (the fastest method), log in and request a transfer of an existing eligible prescription from "My Medications," or call the number on your member ID card and have a patient care advocate contact your doctor for you.
Have your information ready
If you're calling in, have your member ID, the medication name and strength, your doctor's contact information, and your preferred payment method on hand. This avoids a callback.
Confirm payment and delivery details
Before finalizing an order, confirm your delivery address, doctor's information, and payment method. Overnight or expedited shipping can typically be requested for an added cost after standard processing.
Track your order
Once submitted, you can track fill and shipping status through your online account, the mobile app, or optional text alerts.
Set up refills or auto-refill
After your first order arrives, log back in to request refills or enroll eligible medications in automatic refill so future orders ship without you having to request them manually.
Delivery Timelines
| Situation | Typical Timeframe |
|---|---|
| Standard order, complete prescription on file | 10–14 days from receipt of the prescription |
| Doctor's office unresponsive to fax/e-prescribe request | Delayed until the prescriber responds |
| Recommended reorder window | 21 days before your current supply runs out |
| Expedited/overnight shipping (where available) | Added on top of standard pharmacy processing time, for a fee |
Tip: The 10–14 day window starts once Express Scripts Pharmacy actually has your prescription — not the day you submit a request. If your doctor's office is slow to respond to an e-prescribe or fax request, build in extra time, especially the first time you switch a medication to mail order.
Costs: Is Mail Order Actually Cheaper?
Cost depends heavily on your specific plan design, but the math usually favors mail order for people on regular maintenance medications, for two reasons: standard shipping is typically included at no charge, and a 90-day copay is frequently lower than the total of three separate 30-day retail copays.
| Factor | Retail (30-Day) | Express Scripts Home Delivery (90-Day) |
|---|---|---|
| Number of pickups/orders per quarter | 3 | 1 |
| Shipping cost | Not applicable | Usually included free with standard shipping |
| Copay structure | Per 30-day fill | Often discounted per 90-day fill vs. 3x retail copay |
| Convenience for chronic conditions | Lower — more frequent errands | Higher — fewer orders to manage |
To check exact pricing for your specific medication and plan, log in and use "Price a Medication" under the Prescriptions menu — this shows real cost and coverage information rather than a general estimate. You can also compare against a broader drug price checker if you want to see how your copay stacks up against cash-pay discount options.
Refills and Automatic Refill
Once your first order has shipped, ongoing refills are usually the simplest part of the process — assuming your prescription has refills remaining.
- Log in to your account or the mobile app and select the medication from "My Medications" to request a refill.
- Eligible maintenance medications can typically be enrolled in automatic refill, so future orders ship without a manual request each time.
- Not all medications qualify for automatic refill, and some states or plans require ongoing consent before each auto-refill ships.
- You can update your delivery address, payment method, or refill preferences at any time before an order processes.
Heads up: Automatic refill does not override state or federal rules on controlled substances, and some plans pause auto-refill temporarily if a prior authorization or formulary review is triggered.
Renewing an Expired Prescription
If your prescription is out of refills, expired, or your medication is a controlled or compounded drug, Express Scripts Pharmacy will typically need a new prescription from your doctor before it can renew your order.
Check refill status online
Your account will show whether refills remain or whether your prescription has expired.
Ask your doctor to send a new prescription electronically
E-prescribing is the fastest route; Express Scripts will contact your doctor directly if you request this through your account or by phone.
Confirm the new prescription matches your current dose
If your dosage has changed since your last fill, make sure the new prescription reflects that before the order processes, to avoid a rejected or reduced fill.
Common Mistakes That Delay Mail Order
- Waiting until your supply is nearly gone before reordering, instead of the recommended 21-day window.
- Assuming a medication is mail-order eligible without checking the "NM" flag on your plan's formulary.
- Providing an outdated doctor's fax or phone number when requesting a transfer.
- Not confirming payment method before an order processes, causing a hold.
- Expecting a specialty medication to ship through standard home delivery instead of Accredo.
- Not updating your delivery address after moving, resulting in a returned or misdelivered package.
- Assuming automatic refill is active without confirming enrollment in your account.
Most of these issues are avoidable with a five-minute account check before you place or transfer an order. If you're new to mail order, it's worth reviewing your first order carefully rather than assuming everything defaulted correctly.
Decision Tree: Should You Switch to Mail Order?
Step 1: Is your medication a long-term maintenance drug you take regularly?
✔ Yes → Continue to Step 2.
✖ No (short-term or as-needed) → Retail pickup is usually the better fit.
Step 2: Does your plan's formulary list your drug as eligible for mail order (not marked "NM")?
✔ Yes → Continue to Step 3.
✖ No → Your medication may need to stay at retail, or route through Accredo if it's specialty.
Step 3: Would a 90-day supply reduce your total copay compared with three retail fills?
✔ Yes → Mail order is likely worth setting up — register and transfer your prescription.
✖ Uncertain → Use "Price a Medication" in your account to compare exact costs before switching.
What to Do If Your Order Is Late or Missing
If your delivery hasn't arrived within the expected window, contact Express Scripts Pharmacy directly rather than waiting it out — a patient care advocate can check the order status in real time.
| Situation | What to Do |
|---|---|
| Order hasn't shipped after 14 days | Call the number on your member ID card to check for a missing prescriber response or hold |
| Package tracking shows delivered, but nothing arrived | Contact Express Scripts Pharmacy immediately to report a lost package |
| Medication needs refrigeration and arrived warm | Contact the pharmacy before using the medication to confirm whether it's still safe |
| You need medication faster than standard shipping allows | Ask about expedited or overnight shipping options, or fill a short-term supply at retail in the meantime |
Bottom Line
Express Scripts mail order pharmacy works well for people on stable, long-term medications — the process just requires a bit of upfront setup: confirming your drug is mail-order eligible, getting your doctor's prescription sent electronically, and reordering with enough lead time. Once your first order is through, refills and automatic refill make ongoing management largely hands-off.
If your medication requires a prior authorization before it can be filled at all — through retail or mail order — that step needs to be resolved first, since a mail order request can't move forward without an approved prescription on file.
Ready to set up mail order?
Call 1-800-282-2881 (24/7) or use the number on the back of your member ID card, or register directly at the official Express Scripts Pharmacy site.
Go to Express Scripts → See Prior Authorization GuideFrequently Asked Questions
The general Express Scripts Pharmacy customer service line is 1-800-282-2881, available 24 hours a day, 7 days a week. Because Express Scripts serves many different employer, union and Medicare plans, the fastest way to reach the specific team handling your account is to call the toll-free number printed on the back of your member ID card.
Most home delivery orders arrive within 10 to 14 days from the time Express Scripts Pharmacy receives a complete, ready-to-fill prescription. Express Scripts recommends contacting the pharmacy about 21 days before your current supply runs out so a new prescription and refill can be processed in time.
Yes. Most maintenance medications can be filled in a 90-day supply through Express Scripts Pharmacy home delivery, and some plans allow up to a 100-day supply. Specialty medications, controlled substances and certain compounded drugs may be limited to shorter supply amounts depending on the plan and state rules.
It depends on the plan design, but many members pay less per pill because a 90-day supply often costs less than three separate 30-day retail copays. Express Scripts reports that patients save on average compared with retail pricing, though actual savings vary by drug, tier and benefit design.
There are three common ways: ask your doctor to send an electronic prescription directly to Express Scripts Pharmacy, log in to your Express Scripts account or mobile app and request a transfer of an eligible prescription, or call the number on your member ID card and have your prescription bottle and doctor's contact information ready.
No. Express Scripts Pharmacy is only available to members whose pharmacy benefit is administered by Express Scripts or a participating pharmacy benefit manager. Not everyone with a health plan has an Express Scripts pharmacy benefit, so registering online is the quickest way to confirm eligibility.
Drugs marked "NM" (not mailed) on a plan's formulary cannot be filled through home delivery, and some controlled substances face additional state or federal restrictions on mail delivery. Specialty medications are typically routed to Accredo, Express Scripts' specialty pharmacy, rather than standard home delivery.
Eligible maintenance medications can usually be enrolled in automatic refill through your online account or the mobile app under "My Medications." Some states and some plans require ongoing consent before each auto-refill ships, and not every medication qualifies for automatic refill.
Contact Express Scripts Pharmacy directly using the number on your member ID card as soon as you notice a delay. A patient care advocate can check the order status, confirm whether anything is missing from your doctor's office, and in some cases arrange expedited shipping.
Yes. If you request a transfer online, through the app, or by phone, Express Scripts Pharmacy will typically contact your doctor's office directly to obtain or confirm the prescription, so you don't have to coordinate the fax or e-prescribe yourself.
If you change jobs, switch health plans, or move to a plan with a different pharmacy benefit manager, your Express Scripts mail order service typically ends with that transition. You'll need to transfer any remaining prescriptions to your new plan's designated pharmacy or PBM.
How We Researched This Guide
References
- Express Scripts Pharmacy. Home Delivery Program Overview.
- Express Scripts. Member Frequently Asked Questions & Contact Information.
- Medicare.gov. Prescription Drug Coverage (Part D) Guidance.
- Centers for Medicare & Medicaid Services. Medicare Part D Coverage Guidance.
- U.S. Food & Drug Administration. Buying Medicine Safely Online.
Related Resources
Related Pharmacy & Prescription Guides
- Express Scripts Prior Authorization Requirements
- Patient Assistance Programs: Full Directory
- Drug Price Checker: Compare Costs Instantly
- Medicare Part D: Complete Coverage Guide
- Extra Help (LIS): Medicare Part D Low-Income Subsidy
- GoodRx vs Inside Rx: Which Saves You More?
- Insulin Savings Programs Compared
- Manufacturer Savings Cards: How They Work
Editorial Policy: Refill Relay content is researched using publicly available pharmacy benefit manager materials, federal guidance, and standard industry practices. Every article is reviewed for clarity, accuracy and usefulness before publication.