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Trillium Medicare Advantage

Mailing Address:

Trillium Medicare Advantage
555 International Way, Building B
Springfield, OR 97477

Member Services:

  • 1-844-867-1156; (TTY: 711)  
  • From October 1 – March 31, you can call us 7 days a week from 8 a.m. to 8 p.m. From April 1 – September 30, you can call us Monday – Friday from 8 a.m. to 8 p.m. A messaging system is used after hours, weekends, and on federal holidays.

Not yet a member?

  • 1-877-826-5519; (TTY: 711)
  • From October 1 – March 31, you can call us 7 days a week from 8 a.m. to 8 p.m. From April 1 – September 30, you can call us Monday – Friday from 8 a.m. to 8 p.m. A messaging system is used after hours, weekends, and on federal holidays.

Provider Services:

  • 1-844-867-1156; (TTY: 711)
  • From October 1 to March 31, you can call us 7 days a week from 8 a.m. to 8 p.m. From April 1 to September 30, you can call us Monday through Friday from 8 a.m. to 8 p.m. A messaging system is used after hours, weekends, and on federal holidays.

Hello. Please fill out the form below to request more information about Trillium Medicare Advantage.


Directory Request

Best time to contact you:

Disclaimer: This form will send your message to Trillium as an email. The email is not encrypted and is not transmitted in a secured format. By communicating with Trillium through email, you accept associated risks. Trillium does not accept responsibility or liability for any loss or damage arising from the use of email. To ensure the safety of your PHI, please send us a message through the Secure Member or Provider portal.

Best time to contact you:

Disclaimer: This form will send your message to Trillium as an email. The email is not encrypted and is not transmitted in a secured format. By communicating with Trillium through email, you accept associated risks. Trillium does not accept responsibility or liability for any loss or damage arising from the use of email. To ensure the safety of your PHI, please send us a message through the Secure Member or Provider portal.