Updated October 2026

Largest radiology and imaging groups in Washington

Medical group directory
Washington
Radiology and imaging

Groups: 57
Radiology groups: 56
Radiology specialists: 660
Physicians: 1,520
More than one site: 53

There are 57 radiology and imaging groups in Washington with a Medicare PAC ID. Confluence Health is the largest, with 489 physicians.

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Confluence Health is the largest radiology and imaging group in Washington, with 489 physicians

Ranked by physicians with a Washington address linked to each group. Wenatchee Valley Hospital & Clinics is second with 388, and Radia third with 208. 21 Washington groups have 100 or more physicians.

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Radiology and imaging groups in Washington, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	Confluence HealthWenatchee · 81 sites	Parent on file	489	783	Decision makers
2	Wenatchee Valley Hospital & ClinicsWenatchee · 26 sites	Parent on file	388	594	Decision makers
3	RadiaLynnwood · 191 sites	-	208	239	Decision makers
4	Swedish Radia EdmondsLynnwood · 59 sites	-	173	192	Decision makers
5	RadiaLynnwood · 64 sites	-	172	195	Decision makers
6	RadiaLynnwood · 24 sites	-	167	191	Decision makers
7	South Sound RadiologyLynnwood · 28 sites	-	154	170	Decision makers
8	TRA Medical ImagingTacoma · 136 sites	-	142	157	Decision makers
9	Diagnostic Imaging NorthwestTacoma · 72 sites	Parent on file	139	157	Decision makers
10	Swedish Imaging ClinicsEverett · 5 sites	Parent on file	138	140	Decision makers
11	Union Avenue Open MRITacoma · 30 sites	-	136	152	Decision makers
12	Three Rivers HospitalBrewster · 2 sites	Parent on file	132	155	Decision makers
13	TRA Medical ImagingTacoma · 9 sites	-	126	141	Decision makers
14	Columbia County Health SystemDayton · 3 sites	Parent on file	121	141	Decision makers
15	North Valley HospitalTonasket · 3 sites	Parent on file	110	144	Decision makers
16	Inland ImagingSpokane · 32 sites	-	110	122	Decision makers
17	Inland ImagingSpokane · 76 sites	-	110	121	Decision makers
18	Mid-Valley Hospital & ClinicOmak · 3 sites	Parent on file	108	141	Decision makers
19	Inland ImagingSpokane · 45 sites	-	107	118	Decision makers
20	Quincy Valley Medical CenterQuincy · 2 sites	Parent on file	107	112	Decision makers
21	Snoqualmie Valley HealthSnoqualmie · 2 sites	Parent on file	104	134	Decision makers
22	Prosser Memorial HealthProsser · 9 sites	Parent on file	99	193	Decision makers
23	Columbia Basin Hospital Family MedicineEphrata · 2 sites	Parent on file	94	124	Decision makers
24	Moses Lake Community Health CenterMoses Lake · 13 sites	Parent on file	93	137	Decision makers
25	Harbor Regional Health (HRH) Medical GroupAberdeen · 9 sites	Parent on file	84	154	Decision makers
26	RadiaLynnwood · 126 sites	-	74	74	Decision makers
27	Lake Chelan HealthChelan · 5 sites	Parent on file	58	83	Decision makers
28	Willapa Harbor HospitalSouth Bend · 3 sites	Parent on file	54	80	Decision makers
29	Vantage Radiology & Diagnostic ServicesRenton · 32 sites	Parent on file	39	45	Decision makers
30	Bellingham Advanced Medical ImagingMount Vernon · 23 sites	-	31	31	Decision makers
31	Skagit Radiology, Inc. P.S.Mount Vernon · 25 sites	-	31	31	Decision makers
32	Columbia Basin Health AssociationOthello · 9 sites	Parent on file	30	94	Decision makers
33	Mt. Baker ImagingBellingham · 6 sites	Parent on file	30	35	Decision makers
34	Skagit RadiologyMount Vernon · 15 sites	-	30	30	Decision makers
35	North Star Medical ImagingMount Vernon · 29 sites	-	29	29	Decision makers
36	Skagit RadiologyMount Vernon · 46 sites	-	29	29	Decision makers
37	KVH Family MedicineGoldendale · 3 sites	Parent on file	27	50	Decision makers
38	Northwest RadiologistsBellingham · 7 sites	Parent on file	23	28	Decision makers
39	Tumor Institute Radiation Oncology Group (TIROG)Seattle · 4 sites	-	19	21	Decision makers
40	RAYUS RadiologyKirkland · 9 sites	Parent on file	18	18	Decision makers
41	PET/CT Imaging at Swedish Cancer InstituteSeattle · 4 sites	Parent on file	15	15	Decision makers
42	Olympic Medical Imaging ConsultantsSilverdale · 8 sites	-	14	16	Decision makers
43	PeaceHealthVancouver · 7 sites	Parent on file	13	20	Decision makers
44	Medical Oncology AssociatesSpokane · 3 sites	Parent on file	12	17	Decision makers
45	Carol Milgard Breast CenterTacoma · 3 sites	Parent on file	12	15	Decision makers
46	Tacoma Valley Radiation Oncology CentersTacoma · 5 sites	-	9	9	Decision makers
47	Northwest Washington Radiation OncologyEverett · 2 sites	-	6	6	Decision makers
48	RadiantCare Physicians PLLCLacey · 1 site	-	6	6	Decision makers
49	Skagit Regional Health Cancer Care Center - Mount VernonMount Vernon · 2 sites	Parent on file	5	5	Decision makers
50	DermaHealth Dermatology & DermasurgeryRichland · 2 sites	-	4	9	Decision makers

Showing 1 to 10 of 57 radiology and imaging groups in Washington

Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data

Confluence Health has the most physicians in Washington radiology and imaging groups, with 529 across 2 groups

Dmand AI maps every medical group to its parent organization, up to the health system or platform at the top. 4 parent organizations have two or more Washington radiology and imaging groups. Each clinician counts once per parent organization.

Parent organizations with the most Washington radiology and imaging groups
#	Parent organization	Washington groups	Physicians	HCPs
1	Confluence HealthHealth system	2	529	857
2	Providence Health & ServicesHealth system	2	142	144
3	MultiCare Health SystemHealth system	2	141	159
4	Mt. Baker ImagingTreatment center company	2	30	35

Parent organizations with two or more Washington groups

Confluence HealthHealth system · 2 Washington radiology and imaging groups
Confluence HealthMulti-specialty group · Wenatchee
Wenatchee Valley Hospital & ClinicsMulti-specialty group · Wenatchee

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Source: Dmand AI Org Hierarchy Data

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47% of Washington radiology and imaging groups are independent, with no larger parent organization

A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.

Washington radiology and imaging groups by ownership

Independent2747%
Health system or hospital1933%
Platform or corporate owner35%
Community or government35%
Other organization59%

Sites of care beyond their own offices

Practice at a hospital39

Practice at a surgery center13

Practice at a rural health clinic7

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Source: Dmand AI Org Hierarchy Data

39 Washington radiology and imaging groups practice at a hospital site, and 13 at a surgery center

Sites of care linked to each group in the org hierarchy, beyond its own offices. A group can practice at several kinds of site.

Washington radiology and imaging groups by site of care

Hospitals3968%
Ambulatory surgery centers1323%
Rural health clinics712%
Skilled nursing facilities611%
FQHCs47%

Clinicians in Washington radiology and imaging groups

Radiology specialists660

All HCPs2,403

Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data

Lynnwood has the most radiology and imaging groups in Washington, with 6

6radiology and imaging groups in Lynnwood

6radiology and imaging groups in Mount Vernon

6radiology and imaging groups in Tacoma

4radiology and imaging groups in Spokane

3radiology and imaging groups in Bellingham

2radiology and imaging groups in Everett

More Washington cities with radiology and imaging groups

Seattle2
Wenatchee2
Aberdeen1
Auburn1
Bellevue1
Bothell1
Brewster1
Chelan1
Dayton1
Ephrata1
Goldendale1
Kennewick1
Kirkland1
Lacey1
Moses Lake1

Source: Doctors and Clinicians National Downloadable File (CMS)

Each Washington radiology and imaging group profile shows the parent, sites, clinicians and identifiers

Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
Parent organizationThe health system, platform or owner above the groupOn every profile
Every clinician and siteThe full roster and every practice locationWith a free account
Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account

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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data

Sources for the Washington radiology and imaging group list

Sources for the data on this page
Data on this page	Source
Medical groups, specialties and sites	Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data
Parent organizations and independence	Dmand AI Org Hierarchy Data
Physicians and HCPs	Dmand AI Affiliation Data
Group NPI and PAC ID	NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS)

Data last refreshed October 2026Report an inaccuracy Remove my information

Groups whose main specialty is radiology and imaging and that have a Medicare PAC ID.

FAQ

Frequently asked questions about radiology and imaging groups in Washington

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many radiology and imaging groups are in Washington?

There are 57 radiology and imaging groups in Washington with a Medicare PAC ID. Between them they have 660 radiology specialists.

Which companies own the most radiology and imaging groups?

By physicians, Confluence Health, with 529 across 2 groups, followed by Providence Health & Services with 142 and MultiCare Health System with 141.

How many Washington radiology and imaging groups are independent?

27, or 47%, have no larger parent organization in the Dmand AI org hierarchy. 19 belong to a health system or hospital and 3 to a physician platform or corporate owner.

Why are radiology and imaging listed together?

They share one specialty category in the Dmand AI medical group data. Each group is listed under its main specialty.

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