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Request Participation Within Our Network

As a Trillium Community Health Plan provider, you can rely on:

  • A comprehensive approach to care for your patients through disease management programs, healthy behavior incentives and 24-hour toll-free access to bilingual registered nurses
  • Initial and ongoing provider education through orientations, office visits, training and updates
  • A dedicated claims team to ensure prompt payment
  • Minimal referral requirements and limited prior authorizations
  • A dedicated provider engagement team to keep you informed and maintain support in person, by email or by phone
  • The ability to check member eligibility, authorization and claims status online;
    healthcare collateral for your patients (e.g., information about our benefits and services), and educational displays for your office

Important note regarding Trillium's Provider Network:

We are committed to maintaining a behavioral health provider network that ensures our members have timely access to culturally responsive, high-quality care in the most appropriate clinical settings. At this time, our routine outpatient behavioral health network is generally meeting member needs across our lines of business. As a result, we are not routinely extending new contracts for outpatient behavioral health services and are unable to move forward with new applications at this time unless the request addresses a clearly identified unmet need.

Applications from providers certified by the Oregon Health Authority (OHA) in Culturally and Linguistically Specific Services (CLSS) continue to be reviewed on an individual basis.

Please note that Laboratory and Durable Medical Equipment (DME) providers are contracted at the Centene National Contracting level. Providers seeking participation for these services must be contracted through the national program in order to be considered. To initiate this process, providers may contact the National Contracting team directly at NationalContracting_RosterSubmission@CENTENE.COM.

We regularly monitor access, utilization, and network capacity and may revisit contracting as specific needs are identified.

Credentialing Requirements/Forms for Contracted Practitioners

Medical Practitioners & Licensed Behavioral Health Providers

Please complete the New Practitioner Enrollment Packet (PDF) and submit along with all other required documents listed below to ORProviderExperience@trilliumchp.com

  • Oregon Licensure
  • DEA (if applicable)*
  • Certificate of Professional Liability Insurance* 
  • Hospital Admit Plan

* Action Required: If your practitioners are registered with CAQH, documents noted above are required to be uploaded in CAQH and current. Please authorize Centene Corp to access application in CAQH.

Pre-Licensed Behavioral Health Practitioners

Please complete the Trillium BH Pre-Licensed Enrollment Packet (PDF) and submit to: ORProviderExperience@trilliumchp.com

Facilities

Credentialing Requirements/Forms, for new facility enrollment:

* Please send all documents and/or roster to ORProviderExperience@trilliumchp.com

Roster

To ensure that our system pays claims and is loaded with the correct practitioner information, please submit your roster every quarter:

  • Download a copy of the Centene Roster (Excel)
  • Fill out the required fields and email the roster to ORProviderExperience@trilliumchp.com
  • If your office has its own roster with the same required fields, you can send it to our Provider Operations team instead of the Centene Roster.  

Network Participation Steps

  • Please complete one of the following participation forms: Trillium Provider Interest Form or Trillium Facility and Ancillary Provider Interest Form. Please note: You will be required to fill out the form and attach all relevant credentialing documents upon form submission. The list of required documents is at the bottom of each form. 
  • PLEASE NOTE: IF POSSIBLE CREATE A ZIPPED FILE OF ALL REQUIRED INFORMATION FOR EASE OF SUBMISSION. Your submission will be reviewed and a response will be provided within 60 days of receipt. 
  • While we evaluate, you may still care for Trillium Community Health Plan members by obtaining a prior authorization (PA). PA APPROVAL IS REQUIRED FOR ALL NON-PARTICIPATING PROVIDERS SERVICES. You may submit a request using our PA Form.
  • You may also fax the completed form to: 866-703-0958 (Standard Medicaid Requests).
  • Once our Utilization Management (UM) team has reviewed your request, a decision letter will be faxed to the number you provide on the form.
  • If you need assistance with the PA process prior to providing services to a Trillium member as a non-participating provider or have other questions, please contact Trillium Provider Services at 1-877-600-5472. 
  • We appreciate your commitment to serving our members and thank you again for your interest in Trillium Community Health Plan.
  • Please Note: If you are a Routine Vision Services provider, please send those inquiries to Envolve Network Management at EBONM@EnvolveHealth.com.

All Medical and Behavioral Health Network Participation Requests

Trillium Provider Interest Form

  • All Medical Specialties
  • Solo Practitioners
  • Advanced Practice Practitioners
  • Medical Groups 
  • Multi-Specialty Medical Groups
  • Behavioral Heatlh Providers

Facility and Ancillary Network Participation Requests

Trillium Facility and Ancillary Provider Interest Form

  • Ambulatory surgery centers (ASCs)
  • Dialysis facilities
  • Durable medical equipment (DME)
  • Home health
  • Home Infusion
  • Hospice
  • Hospital
  • Laboratory
  • Long term acute care (LCTA)
  • Orthotics and prosthetics (O&P)
  • Ostomy and medical supplies
  • Radiology/MRI/PET
  • Skilled nursing facilities (SNF)
  • Sleep study centers