Medicare Supplement Plans

THP Insurance Co., Inc.

Our Medicare Supplement plans give you the freedom to choose your own doctors and hospitals.* Your plan cannot be canceled if you pay your premiums on time. Coverage for most Medicare Parts A and B deductibles, copayments and coinsurance is available.

Medicare Supplement insurance is also called “Medigap”. It is private health insurance that is designed to supplement Original Medicare. It helps to pay some of the health care costs or "gaps" that Original Medicare does not cover.

If you have Original Medicare and Medicare Supplement Insurance, Medicare will pay its share of the Medicare-approved amounts for covered health care costs first **. Your Medicare Supplement plan will pay second**, and will pay amounts according to your specific plan benefits. 

THP Insurance Co., Inc. offers Medicare Supplement plans A, C, D, F, High-Deductible F, G, High-Deductible G and N. Please note: Only applicants' first eligible for Medicare before 2020 may purchase Plans C, F, and high deductible F.

To be eligible for a THP Insurance Co., Inc. Medicare Supplement plan, you must:

  • Have Medicare A and B
  • Reside in the plan service area. Our plan service area is the state(s) of Ohio and West Virginia. 


*Provider must accept Medicare.

** Employer Group Medicare Supplement policies have specific rules which may affect which coverage pays first and second.

Benefits Summary

We have designed our Medicare Supplement/Medigap Plans with a focus on service that is responsive and personal. We are giving you the health coverage you need, and the peace of mind you want. Below you will find links to documents that include more information about your coverage. Click on one of the links below to learn more.

2024 Policy Documents


2024 Medicare Supplement Enroll Guide

2024 Outline of Coverage

2024 Medicare Supplement Application

2024 Notice of Replacement 


Choosing a Medigap Policy: A Guide to Health Insurance for People with Medicare 

Sign-Up Today! 

If you would like to talk to someone regarding your possible plan options, or you need help getting started, please call 1.877.847.7915 (TTY: 711). Hours of operation are October 1 through March 31, 8 am to 8 pm, seven days a week and April 1 through September 30, 8 am to 8 pm, Monday through Friday.