Health plans and insurers

Eastern Oregon Coordinated Care Organization

Phone, published email, fax, addresses and the next step for your office.

5 contact routesNo directory research calls placed

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.

pharmacy help desk

Pharmacy customer service

Official page read

Phone888-474-8539Fax

800-207-8235

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.

Mailing address

Not researched for this route

Pharmacy customer-service route; not asserted as a pharmacy prior-authorization channel.

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.

claims

Medical and behavioral-health claims mailing

Official page read

Phone

No phone listed for this route

Published hours

Not published in this record

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.

Mailing address

EOCCO Medical / Behavioral Health Claims, PO Box 40384, Portland, OR 97240

Medical and behavioral-health claims submission.

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

Report an update

claims

Pharmacy claims mailing

Official page read

Phone

No phone listed for this route

Published hours

Not published in this record

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.

Mailing address

EOCCO Pharmacy Claims, PO Box 999, Appleton, WI 54912-0999

Pharmacy claims submission.

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

Report an update

appeals grievances

Complaints and appeals mailing

Official page read

Phone

No phone listed for this route

Published hours

Not published in this record

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.

Mailing address

Eastern Oregon Coordinated Care Organization, Attn: Appeal Unit, 601 SW Second Ave., Portland, OR 97204

Member complaints and appeals.

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

Report an update

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Eastern Oregon Coordinated Care Organization

Medical and behavioral-health customer service

Pharmacy customer service

Medical and behavioral-health claims mailing

Pharmacy claims mailing

Complaints and appeals mailing

How did your call go?

Share a call experience

Suggest a correction

Found the contact. Still need to make the call?

Put payer follow-up
on your office’s worklist.

See how it could work for your practice

Eastern Oregon Coordinated Care Organization

How did your call go?

Share a call experience

Suggest a correction

Found the contact. Still need to make the call?

Put payer follow-upon your office’s worklist.

See how it could work for your practice

Put payer follow-up
on your office’s worklist.