2025 Employees Retirement System (ERS) - EGWP

A prescriber receives their medication in the mail while a family member walks the dog.
HealthSelect of Texas Medicare Rx logo

Welcome to your 2025 HealthSelect
Medicare Rx Prescription Drug Program

Effective Jan. 1, 2025


Don’t have an account? Register.

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Benefit Overview

Get a better understanding of how you and your plan work together to cover your medications.

Review Benefit

Retail Pharmacy

Retail Pharmacies

We have a large pharmacy network, including Extended Day Supply (EDS) pharmacies. We’ll help you find a nearby retail pharmacy.

Find a Pharmacy

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Price a Medication

We’ll make it easy to check medication coverage options so you can compare prices and find savings.

Price a Medication

If you are receiving "Extra Help," otherwise known as "Low Income Subsidy Rider" or "LIS Rider," your copayment may be less than what is shown. Please contact us toll-free at (866) 264-4676 (TTY: 711) for more information.

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Home Delivery

Choose Express Scripts® Pharmacy and get a 90-day supply of your maintenance medication delivered with free standard shipping.

View Home Delivery brochure (PDF)

Medicare Home Delivery Order Form

Contact Us

Current members and prospective members should call (866) 264-4676 (TTY: 711).

Customer Service Hours:
24 hours a day, seven days a week.

For plan questions you can write to us at:
Express Scripts Medicare P.O. Box 66535 St. Louis, MO 63166-6535

How do I contact Medicare?
For general information about Medicare Part D prescription drug coverage, call (800) MEDICARE or (800) 633-4227. TTY users should call (877) 486-2048, 24 hours a day, seven days a week. You can also visit the official Medicare website at www.medicare.gov. By selecting this link, you will be opening a new browser window to another site. We assume no responsibility for any material or information you may encounter on this or any other non-Express Scripts site.

Have questions about your eligibility or enrollment? Contact ERS or call toll-free (877) 275-4377 (TTY: 711), 8 a.m. – 5 p.m. CT, Monday – Friday.

Express Scripts and the "E" logo are trademarks of Express Scripts Strategic Development, Inc. The ERS logo is a trademark of Employees Retirement System of Texas. The HealthSelect℠ of Texas logo is a trademark of Employees Retirement System of Texas. All other trademarks are the property of their respective owners.