| Clallam County Public Hospital District No. 1 | Clallam Bay Medical Clinic | Clallam Bay | Rural Health Clinic |
| Clallam County Public Hospital District No. 1 | Bogachiel Clinic | Forks | Rural Health Clinic |
| Clallam County Public Hospital District No.1 | Forks Family Medical Clinic | Forks | Rural Health Clinic |
| David M. Warwick, DC,PLLC | Warwick Chiropractic & Massage | Lacey | DMEPOS, Orthotics & Prosthetics |
| Grays Harbor County Public Hospital District No. 1 | Summit Pacific Health Clinic | Elma | Rural Health Clinic |
| Jefferson County Public Hospital District NO 2 | Jefferson Healthcare Express Clinic | Port Townsend | Rural Health Clinic |
| Kestra Medical Technology Services, Inc. | NA | Kirkland | DMEPOS |
| Kinetic Orthopedics | NA | Tacoma | DMEPOS, Orthotics & Prosthetics |
| Kingston Crossing Wellness | Bremerton Wellness | Bremerton | DMEPOS |
| Klickitat County Public Hospital District No. 2 | Skyline Medical Clinic | White Salmon | Rural Health Clinic |
| Lewis County Hospital District No 1 | Arbor Health Packwood Clinic | Packwood | Rural Health Clinic |
| MaxCare, LLC | NA | Kennewick | DMEPOS |
| MD Medical Supplies, Inc. | NA | Kent | DMEPOS |
| MultiCare Health System | MultiCare Home Infusion | Tacoma | Community Rx, DMEPOS, Infusion Services, Physician Practice Infusion Suites/Ambulatory Infusion Suites, Sterile Compounding |
| Okanogan County Public Hospital Dist No. 4 | Tonasket Family Medical Clinic | Tonasket | Rural Health Clinic |
| Okanogan Douglas County Hospital District 1 | Three Rivers Family Medicine | Brewster | Rural Health Clinic |
| Pacific Healthcare Group | Rainier Surgical Group | Auburn | DMEPOS, Orthotics & Prosthetics |
| Pediatric Associates of Whidbey Island, PS | Pediatric Associates of Whidbey Island | Freeland | Rural Health Clinic |
| Professional Medical Corp. | NA | Seattle | DMEPOS |
| Prosser Public Hospital District of Benton County | Prosser Memorial Health Grandview Clinic | Grandview | Rural Health Clinic |
| Providence Health & Services Washington | Providence Medical Group Southwest Washington | Centralia | Rural Health Clinic |
| Providence Health & Services Washington | Providence Family Medicine Chewelah | Chewelah | Rural Health Clinic |
| Public Hospital District 3 of Pacific County | Ocean Beach Medical Group-Ocean Park | Ocean Park | Rural Health Clinic |
| Public Hospital District 3 of Pacific County | Ocean Beach Medical Clinic | Ilwaco | Rural Health Clinic |
| Public Hospital District 3 of Pacific County | Naselle Clinic | Naselle | Rural Health Clinic |
| Public Hospital District No 4, King County | Snoqualmie Valley Hospital | Snoqualmie | Swing Bed |
| Public Hospital District No.4, King County, Washington | Snoqualmie Valley Hospital Clinic | Snoqualmie | Rural Health Clinic |
| Public Hospital District No.4, King County, Washington | Snoqualmie Ridge Medical Clinic | Snoqualmie | Rural Health Clinic |
| RXLTC PLLC | Rx Pharmacy LTC | Kennewick | Community Rx, DMEPOS, Long Term Care Pharmacy |
| Select Orthopedics, LLC | NA | Lynnwood | DMEPOS, Orthotics & Prosthetics |
| Synergy Medical Systems LLC | NA | Federal Way | DMEPOS, Orthotics & Prosthetics |
| Valuplus Medical Supply LLC | Valuplus Medical Supply | Wenatchee | DMEPOS, Orthotics & Prosthetics |
| Vesiflo, Inc. | Vesiflo | Redmond | DMEPOS |
| Welu Healthcare Inc. | Highland Pharmacy | Federal Way | Community Rx, DMEPOS |
| Whidbey Island Public Hospital District | WhidbeyHealth Primary Care - Goldie St. | Oak Harbor | Rural Health Clinic |
| Whidbey Island Public Hospital District | WhidbeyHealth Primary Care-Clinton | Clinton | Rural Health Clinic |
| Whidbey Island Public Hospital District | WhidbeyHealth Primary Care-Freeland | Freeland | Rural Health Clinic |
| Whidbey Island Public Hospital District | WhidbeyHealth Primary Care-Cabot | Oak Harbor | Rural Health Clinic |
| Whidbey Island Public Hospital District | WhidbeyHealth Primary Care - Coupeville | Coupeville | Rural Health Clinic |