To enroll in a Memorial Hermann Advantage HMO plan, you must first be eligible for Medicare Part A and enrolled in Medicare Part B and reside in Harris, Fort Bend or Montgomery counties in Texas.

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

Ready to Enroll? Follow These Instructions.

Applying for a Memorial Hermann Advantage HMO Plan Is Easy, Secure and Convenient!

To be eligible to elect a Medicare Advantage plan, like Memorial Hermann Advantage HMO, an individual must be entitled to Medicare Part A and enrolled in Part B, and must be entitled to Medicare Part A and Part B benefits as of the effective date of coverage under the plan. To enroll in a Memorial Hermann Advantage HMO plan, you must also reside in Harris, Fort Bend or Montgomery counties in Texas.

Once you have confirmed you are enrolled in Medicare and are within a valid election period, you can enroll in a Medicare Advantage Plan.

To enroll in one of our Memorial Hermann Medicare Advantage HMO plans, you can:

Please read these additional instructions if helping someone else enroll in a Medicare Advantage plan.

Enroll Online

You can enroll in a Memorial Hermann Advantage HMO plan at your convenience by visiting our secure and easy online enrollment site. Medicare beneficiaries may also enroll in a Memorial Hermann Advantage HMO plan through CMS Medicare Online Enrollment Center located at medicare.gov. (Please note that by clicking on this link, you will be leaving Memorial Hermann Advantage website.)

You will first be asked to enter your ZIP code to confirm you live within the eligible area of our Medicare Advantage plans. Then, our online enrollment tool will allow you to view our Memorial Hermann Advantage HMO plans, cost, coverage, benefits and additional plan details.

Enroll by Phone

Call one of our licensed Medicare agents at (866) 350-2715 (TTY 711) from 8 a.m. to 8 p.m. CT, 7 days a week from Oct. 1 – March 31 and 8 a.m. to 8 p.m. CT, Monday – Friday from April 1 to Sep. 30. We are happy to help answer any questions you may have about Medicare and choosing the Medicare Advantage plan that is best for you.

Our qualified team is prepared to answer all of your Medicare questions and concerns, as well as can guide you through the enrollment process making it simple and fast.

Enroll by Mail

You can enroll via mail by downloading the Memorial Hermann Advantage HMO paper enrollment form and sending it to:

Memorial Hermann Advantage HMO Enrollment
929 Gessner Road
Suite 1500
Houston, TX
77024

Download Memorial Hermann Advantage HMO Enrollment Form
English Spanish

Enrollment Checklist

Use this checklist to make sure you are prepared and ready to enroll in one of our Memorial Hermann Advantage HMO plans.

For a detailed description of benefits and features by plan, click here.

Checklist Item Learn More
Eligible for Medicare Find out if you are eligible
Reside in Harris, Fort Bend or Montgomery counties in Texas Enter ZIP code to see if you qualify based on your county
Enrolled in Original Medicare - Part A and Part B Confirm you are enrolled in Medicare
Meet Required Valid Election Periods Find out if you can enroll now
Enroll in Medicare Advantage Plan Enroll (online, phone, or mail)
Confirm Enrollment Received confirmation (mail, etc.)
Enjoy the benefits of being a Memorial Hermann Advantage HMO member Typically a complete member Welcome Kit will arrive within 10 days of your confirmed enrollment from CMS. Effective date will be noted on the Evidence of Coverage.

What Happens After I Enroll?

Once you have submitted your enrollment information via phone, online or mail, Memorial Hermann Advantage HMO will securely send your application to the Centers for Medicare & Medicaid Services (CMS) for approval. Upon approval, you will receive a Memorial Hermann Advantage HMO Membership Welcome Kit packet, along with your new ID card granting you access to numerous doctors and hospitals, your specific plan benefits, and more. You can typically expect your new ID card and membership packet within 10 business days of your confirmed enrollment from CMS.

Need Help with Enrollment?

We are happy to help answer any questions you may have about Medicare, Medicare eligibility and enrollment periods, as well as assist you with choosing the Memorial Hermann Medicare Advantage plan that is best for you.

Call one of our Memorial Hermann Advantage Advisors at: (866) 350-2715 (TTY 711)

  • 8 a.m. to 8 p.m. CT, 7 days a week from Oct. 1 – March 31
  • 8 a.m. to 8 p.m. CT, Monday – Friday from April 1 to Sep. 30


Learn about additional benefits that Original Medicare does not cover

Get an Information Kit

Learn more about Medicare and our Medicare Advantage plans.


Get a Kit
Find A Seminar Near You

Find a Seminar

Register for a free, no-obligation Medicare webinar or seminar in your area.


Learn More
Talk To An Advisor

Talk with an Advisor

Call one of our licensed Medicare agents from 8 a.m. to 8 p.m. CST Monday - Friday at (866) 350-2715


View Our Plans

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