You have the following options for easy enrollment.

To be eligible for an ATRIO Medicare Advantage plan, you must have Medicare Part A and Part B, live in one of our service areas, and have a valid enrollment period. Learn more about enrollment periods.



If you’re ready to become an ATRIO member, you can start the online application right now!


By Phone

Call us at 888-201-8818 and one of our Licensed Medicare Agents can assist you with any questions or help you complete your enrollment.


In Person

Come into one of our office locations and work with one of our agents to find the best plan for you.


Enroll by Mail or Fax

Simply print and complete the paper Enrollment Form found below and mail or fax the form to us at:

ATRIO Health Plans
338 Jericho Turnpike #135
Syosset, NY 11791

Fax: (602) 975-4071

You can also bring your completed Enrollment Form to any of our offices locations.

Please print the Enrollment Form that matches the county in which you reside. You must also complete and submit the Attestation of Eligibility Form along with your Enrollment Form. To view plan information including Summary of Benefits and Star Ratings, go to Plan Options.

Medicare Advantage Plans

Douglas County Plans

2024 Election Form

Klamath County Plans

2024 Election Form

Marion & Polk County Plans

2024 Election Form

Jackson & Josephine Counties Plans

2024 Election Form

Clackamas, Lane, Multnomah, Washington & Yamhill Counties Plans

2024 Election Form

SNP plans

These plans are available to anyone who has both Medicare and full medical assistance from the Oregon Health Plan (Medicaid).

SNP Plan

2024 Election Form