At Medical Mutual, we make enrolling in a Medical Mutual Medicare Plan easy. Just choose a method below. Remember, if you want to enroll in a Medicare Advantage or a Medicare Supplement Insurance plan, you must first be enrolled in Medicare Part A and Part B (Original Medicare).

Apply Online

Enrolling in a Medical Mutual plan is easy with our online applications, which also let you compare plans so you can find the right plan for you. You can also print a copy of your completed application for your records.

Enroll in a Medicare Advantage Plan

Enroll in a Medicare Supplement Insurance Plan

Medicare beneficiaries may also enroll in a Medical Mutual Medicare Advantage plan through the CMS Medicare Online Enrollment Center at

Apply by Phone

To enroll in a Medical Mutual plan, call our sales center and our team of licensed agents will help you enroll in a plan over the phone.

Call: 1-866-406-8777
(TTY 711 for hearing impaired)

7 days a week, 8 a.m. - 8 p.m.

Send Your Application by Mail

To enroll in a Medical Mutual Medicare Advantage plan, download, print and complete our enrollment application using the links below.

Region 1 with MedMutual Advantage Application PDF
Region 1 includes the following counties in Ohio: Ashland, Carroll, Columbiana, Cuyahoga, Geauga, Holmes, Lake, Lorain, Mahoning, Medina, Portage, Stark, Summit, Trumbull, Tuscarawas and Wayne.

Region 2 with MedMutual Advantage Application PDF
Region 2 includes the following counties in Ohio: Adams, Allen, Auglaize, Champaign, Clinton, Coshocton, Crawford, Darke, Defiance, Erie, Fayette, Gallia, Guernsey, Hardin, Harrison, Henry, Highland, Huron, Jackson, Knox, Lawrence, Logan, Mercer, Monroe, Noble, Ottawa, Paulding, Pike, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Shelby, Van Wert, Vinton, Washington, Williams.

Region 3 with MedMutual Advantage Application PDF
Region 3 includes the following counties in Ohio: Brown, Butler, Clark, Clermont, Delaware, Fairfield, Franklin, Fulton, Greene, Hamilton, Hancock, Hocking, Licking, Lucas, Madison, Marion, Miami, Montgomery, Morgan, Morrow, Muskingum, Perry, Pickaway, Seneca, Union, Warren, Wood and Wyandot.  

When you've completed your application, return it by mail to:

Medical Mutual Medicare
P.O. Box 94563
Cleveland, OH 44101

Once we receive your enrollment information, you will get a confirmation letter in the mail.

Please note: We do not offer a mailing option for our Medicare Supplement Insurance plans. Please enroll in a Medicare Supplement Insurance plan online or by phone.

After You Enroll

Once Medical Mutual starts processing your enrollment form, here is what you can expect based on the plan you selected.

Medicare Advantage Plans with Prescription Drug (MAPD)

We will review your information and confirm with the Centers for Medicare & Medicaid Services that you qualify for Medicare.

If everything is in order, we will send you a letter within 10 days to confirm you are a member. Call us at 1-800-982-3117 (TTY 711 for hearing impaired) if you do not receive your letter before your coverage is scheduled to begin.

Shortly after this, we will send you the following:

  • Member ID card
  • Welcome Kit
  • Mail-order prescription form
  • Instructions for requesting directories or a formulary

Medicare Supplement Insurance Plans

After we process and issue your policy, we will send your ID card and enrollment materials to you. You should receive these within 10 business days of your application’s approval. Your ID card is similar to other insurance cards you may have had and you will need to bring it with you to use any of the plan’s benefits.

To view a PDF file, you will need Adobe Acrobat Reader™. If you do not already have this reader on your computer, you can download a free copy from Adobe®.

Have Questions? We Can Help.

Speak with a Medical Mutual licensed insurance agent or call your insurance agent.

Call 1-866-406-8777 (TTY 711 for hearing impaired)

Mon. - Fri. 8 a.m. to 8 p.m.

Page last updated on 6/3/2021
C4264-MCS R5/21