Pharmacy Directory and Network Information

Memorial Hermann Advantage HMO plans cover thousands of prescription drugs. Search the list of drugs covered under your Medicare plan by using our search tool or printing the full list below for pricing and coverage information on prescriptions you or your patient might need.

Questions? Contact Customer Service at (855) 645-8448

Where Can I Fill My Prescription Drugs?

In most cases, your prescription drugs are filled at Memorial Hermann Advantage's network of pharmacies. A network pharmacy is a pharmacy that has a contract with the plan to provide your covered Medicare Part D prescription drugs. To verify if a pharmacy is part of our network, please contact Customer Service at (844) 860-6750 (TTY 711). You can also download a copy of our Pharmacy Directory or visit our website's online pharmacy search tool.

2021 Pharmacy Directory

How Do I Fill a Prescription Through Costco Mail Order?

There are two options available to you through Costco Mail Order Pharmacy: traditional mail order or online enrollment. For more information on the Costco Mail Order Pharmacy and for ordering instructions, please click here.

To obtain prescription drugs by mail, use the following mail-order form or call Costco Mail Order Pharmacy Member Services at (800) 607-6861 (TTY 711), 7 a.m. to 9 p.m. CT, Monday - Friday, 11:30 a.m. to 4 p.m. CT, Saturday – Sunday. Prescription drugs that you get through any other mail order service are not covered.

You can use the mail order service to fill prescriptions for many drugs that are on the formulary list. When you order prescription drugs by mail, you may order up to a 90-day supply of the drug.

Mail-Order Form (English) Mail-Order Form (Spanish)

For more information on home delivery (mail order) information, please also visit the Costco Mail Order Information section on our Pharmacy FAQ page.

For instructions on how to enroll for prescriptions online with Costco Mail Order, click here.

Filling Prescriptions Outside the Network

Generally, we cover drugs filled at an out-of-network pharmacy only when you are not able to use a network pharmacy. To ensure that Memorial Hermann Advantage will allow an out-of-network pharmacy before you fill your prescription, call Member Services to see if there is a network pharmacy in your area where you can fill your prescription.

If you go to an out-of-network pharmacy due to a health emergency, you may have to pay the full cost (rather than paying just your co-pay) when you fill your prescription. In the event of using an out-of-network pharmacy for an emergency, you can ask us to reimburse you for our share of the cost by submitting a paper claim form called a Direct Member Reimbursement (DMR).

However, even after we reimburse you for our share of the cost, you may pay more for a drug purchased at an out-of-network pharmacy because the out-of-network pharmacy’s price may be higher than a network pharmacy’s. Regardless of the amount, we can only reimburse you the amount that we would have paid if you had the prescription filled at a network pharmacy. Even though you may not receive the full amount you paid in reimbursement, the amount that you paid may still be counted toward your required out-of-pocket costs in reaching the catastrophic stage.

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