Integrated Managed Care (IMC)

IMC is a state initiative that brings together the payment and delivery of physical health, behavioral health (mental health and substance use disorder treatment) and crisis services for people enrolled in Apple Health (Medicaid), through managed care.

As part of the IMC services, there is a Behavioral Health Services Only (BHSO) program which provides behavioral health (mental health and substance use disorder treatment) to fee-for-service Apple Health Medicaid clients. Medical services are administered through the Health Care Authority (HCA).

Molina was selected to be one of only two MCOs to provide Integrated Managed Care (IMC) to Medicaid members in all 10 Washington regions. As of January 1, 2020 IMC will be implement statewide. New regions include Salish (Clallam, Jefferson & Kitsap counties), Great Rivers (Cowlitz, Grays Harbor, Lewis, Pacific, Wahkiakum counties) and Thurston-Mason (Mason and Thurston counties)  See our service area map here

IMC and BHSO coverage include crisis services which are covered through the local Behavioral Health Administrative Services Only (BH-ASO). Below is a list of the BH-ASOs by region.

Region BH-ASO Counties Crisis Number
Great Rivers Great Rivers Behavioral Health Administrative Services Org (GRBHASO) Cowlitz, Grays Harbor, Lewis, Pacific, Wahkiakum (800) 803-8833
Greater Columbia Greater Columbia Behavioral Health, LLC Asotin, Benton, Columbia, Franklin, Garfield, Kittitas, Walla Walla, Whitman, Yakima (888) 544-9986
King King County BH-ASO King (866) 427-4747/
(206) 461-3222
North Central Beacon Health Chelan, Douglas, Grant, Okanogan (800) 852-2923
North Sound Volunteers of America Island, San Juan, Skagit, Snohomish, Whatcom (800) 584-3578
Pierce Beacon Health Pierce (800) 576-7764
Salish Salish BH-ASO Clallam, Jefferson, Kitsap (888) 910-0416
Southwest Beacon Health Clark, Klickitat, Skamania (800) 626-8137
Spokane Spokane County Regional Behavioral Health (Administrative Service Organization) Adams, Ferry, Lincoln, Pend Oreille, Spokane, Stevens (877) 266-1818
Thurston-Mason Thurston-Mason BH-ASO Mason, Thurston (800) 270-0041/
(360) 754-1338
Medicaid Children:
(360) 480-5721


Involuntary Treatment Act Services - Medicare/Medicaid Dual Eligibles
IMC Provider Testing Claims and Encounters Guide
Instructions for testing with Molina's clearinghouse
Molina Test Members for Claims and Encounters
MHW Introduction to Claims and Encounters
MHW Invoicing Guide
Behavioral Health Prior Auth Request Form
Medicaid Behavioral Health Provider Prior Authorization Reference Guide
Working with Interpreters
Interpreter Services FAQ for FIMC Providers