DialClerk Directory

Eastern Oregon Coordinated Care Organization

Member services

Find member support without confusing it with a provider-only line. Offices may need the member present or an authorized representative form.

member services

Medical and behavioral-health customer service

Official page read
Phone888-788-9821Fax

503-948-5577

Published email

EOCCOmedical@eocco.com

EOCCO member customer-service inquiries.

Published hours

Monday–Friday, 7:30 a.m.–5:30 p.m. Pacific

Product, plan and location

medicaid
Oregon

Published service area

EOCCO Oregon Health Plan members in the 12 Eastern Oregon counties listed by the CCO; benefit and network assignment still apply.

Baker County, OR · Gilliam County, OR · Grant County, OR · Harney County, OR · Lake County, OR · Malheur County, OR · Morrow County, OR · Sherman County, OR · Umatilla County, OR · Union County, OR · Wallowa County, OR · Wheeler County, OR · Area source ↗

Mailing address

Not researched for this route

Have the member ID available. Customer-service fax is not presented as a claims-submission fax.

View source ↗ · Source checked 2026-10-22 · Explicit 12-county CCO service area ↗

Report an update
Wait time: not establishedBest time from caller reports: not established. Published hours are not a wait forecast.

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Make the call count.

Find member support without confusing it with a provider-only line. Offices may need the member present or an authorized representative form.

Have ready in your secure workspace

  • Exact plan name and member contact instructions
  • Consent and representation requirements
  • A clear request with no unnecessary medical detail

Questions to resolve

  • Can you discuss this request with the authorized office representative?
  • Which team can resolve the member question?
  • What is the next step and reference number?

This is a general administrative checklist, not payer policy or advice about a particular patient. Confirm the current plan instructions.

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