Updated October 2026

Medical groups in Seattle, WA

Medical group directory
Seattle, Washington

Medical groups: 176
Multi-specialty: 29
Single-specialty: 147
More than one site: 90
100+ physicians: 14

There are 176 medical groups in Seattle with a Medicare PAC ID. UW Physicians is the largest, with 2,833 Washington physicians, followed by Washington Permanente Medical Group, P.C. with 1,612. 78% of Seattle groups are independent.

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UW Physicians is the largest medical group in Seattle, with 2,833 physicians

Ranked by physicians with a Washington address linked to each group based in Seattle. Washington Permanente Medical Group, P.C. is second with 1,612, and Children's University Medical Group (CUMG) third with 931. 14 Seattle groups have 100 or more physicians.

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Medical groups in Seattle, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	UW PhysiciansSeattle · 143 sites	Parent on file	2,833	4,269	Decision makers
2	Washington Permanente Medical Group, P.C.Seattle · 114 sites	Parent on file	1,612	2,742	Decision makers
3	Children's University Medical Group (CUMG)Seattle · 46 sites	Parent on file	931	1,125	Decision makers
4	Swedish Health ServicesSeattle · 95 sites	Parent on file	927	1,315	Decision makers
5	Virginia Mason Medical CenterSeattle · 39 sites	Parent on file	643	1,031	Decision makers
6	The PolyclinicSeattle · 56 sites	Parent on file	619	912	Decision makers
7	Swedish Physicians DowntownSeattle · 86 sites	Parent on file	524	934	Decision makers
8	Seattle Children'sSeattle · 60 sites	Parent on file	433	1,204	Decision makers
9	Seattle Orthopedic CenterSeattle · 102 sites	-	346	736	Decision makers
10	Providence SwedishSeattle · 40 sites	Parent on file	289	438	Decision makers
11	Pacific Medical Centers (PacMed)Seattle · 22 sites	Parent on file	202	289	Decision makers
12	Harborview Medical CenterSeattle · 16 sites	Parent on file	181	289	Decision makers
13	U.S. Anesthesia Partners of WashingtonSeattle · 13 sites	Parent on file	174	211	Decision makers
14	University of Washington Medical CenterSeattle · 15 sites	Parent on file	137	246	Decision makers
15	Neighborcare HealthSeattle · 41 sites	Parent on file	94	263	Decision makers
16	Public Health, Seattle & King CountySeattle · 11 sites	Parent on file	59	91	Decision makers
17	Seattle Emergency Physicians ServicesSeattle · 12 sites	-	53	62	Decision makers
18	Swedish Family Medicine - Cherry HillSeattle · 7 sites	Parent on file	50	50	Decision makers
19	International Community Health ServicesSeattle · 13 sites	Parent on file	42	104	Decision makers
20	Ballard Emergency PhysiciansSeattle · 11 sites	Parent on file	37	65	Decision makers
21	Carolyn Downs Family Medical CenterSeattle · 9 sites	Parent on file	34	69	Decision makers
22	Seattle Indian Health BoardSeattle · 5 sites	Parent on file	30	53	Decision makers
23	Orthopedic Physician Associates (OPAOrtho)Seattle · 5 sites	-	27	45	Decision makers
24	Northwest Asthma & Allergy CenterSeattle · 11 sites	-	20	22	Decision makers
25	Tumor Institute Radiation Oncology Group (TIROG)Seattle · 4 sites	-	19	21	Decision makers
26	PET/CT Imaging at Swedish Cancer InstituteSeattle · 4 sites	Parent on file	15	15	Decision makers
27	Eye Associates NorthwestSeattle · 4 sites	-	14	22	Decision makers
28	NavosSeattle · 4 sites	Parent on file	13	89	Decision makers
29	Northwest Women's HealthcareSeattle · 2 sites	-	13	20	Decision makers
30	Seattle Neuropsychiatric Treatment CenterSeattle · 4 sites	-	13	19	Decision makers
31	Kinwell HealthSeattle · 2 sites	-	12	18	Decision makers
32	Seattle Internist GroupSeattle · 2 sites	-	7	20	Decision makers
33	Fremont Family PracticeSeattle · 2 sites	-	7	11	Decision makers
34	Washington Center for Bleeding DisordersSeattle · 3 sites	Parent on file	7	10	Decision makers
35	MedNorthwestSeattle · 1 site	-	7	9	Decision makers
36	Modern DermatologySeattle · 1 site	-	6	6	Decision makers
37	Seattle Hand Surgery GroupSeattle · 2 sites	-	5	17	Decision makers
38	Seattle Eye CareSeattle · 2 sites	-	5	6	Decision makers
39	University of Washington School of DentistrySeattle · 2 sites	Parent on file	4	37	Decision makers
40	Summit Consulting For Post Acute CareSeattle · 3 sites	-	4	24	Decision makers
41	Specialty Medical ServicesSeattle · 1 site	-	4	11	Decision makers
42	Psychiatry NorthwestSeattle · 3 sites	-	4	9	Decision makers
43	Seattle Rheumatology AssociatesSeattle · 2 sites	-	4	7	Decision makers
44	Retina Consultants of SeattleSeattle · 3 sites	-	4	4	Decision makers
45	Asian Counseling/Referral ServicesSeattle · 3 sites	Parent on file	3	27	Decision makers
46	AIMS InstituteSeattle · 3 sites	-	3	14	Decision makers
47	CLEARVIEW Eye & LaserSeattle · 1 site	-	3	5	Decision makers
48	Greenlake Primary CareSeattle · 1 site	-	3	5	Decision makers
49	Skin Surgery CenterSeattle · 1 site	Parent on file	3	5	Decision makers
50	Westside DermatologySeattle · 1 site	-	3	4	Decision makers

Showing 1 to 10 of 176 medical groups in Seattle

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

University of Washington has the most physicians in Seattle medical groups, with 2,859 across 4 groups

Dmand AI maps every Seattle medical group to its parent organization, up to the health system or platform at the top. 3 parent organizations have two or more Seattle medical groups. Among health systems, Providence Health & Services has the most groups, 6. Each clinician counts once per parent organization.

Parent organizations with the most Seattle medical groups
#	Parent organization	Seattle groups	Physicians	HCPs
1	University of WashingtonAcademic health system	4	2,859	4,374
2	Providence Health & ServicesHealth system	6	1,452	2,256
3	Seattle Children's Hospital, Research Institute and FoundationHealth system	2	1,068	1,912

Parent organizations with two or more Seattle groups

University of WashingtonAcademic health system · 4 Seattle medical groups
UW PhysiciansMulti-specialty group · 143 sites
Harborview Medical CenterMulti-specialty group · 16 sites
2 more Seattle groups and their practice sites

See every medical group, site and clinician under University of Washington

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Source: Dmand AI Org Hierarchy Data

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Dmand AI maps the owners, administrators and physician leaders at each of the 176 Seattle medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.

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78% of Seattle medical 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.

Seattle medical groups by ownership

Independent13778%
Health system or hospital148%
Platform or corporate owner148%
Community or government106%
Other organization11%

Source: Dmand AI Org Hierarchy Data

34 Seattle medical groups practice at a hospital site

Beyond their own offices, groups practice at the sites of care linked to them in the org hierarchy. A group can practice at several kinds of site, so the shares overlap.

Seattle medical groups by site of care

Hospitals3419%
Ambulatory surgery centers148%
Therapy and rehab centers127%
FQHCs95%
Behavioral health facilities42%
Skilled nursing facilities21%

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

Primary care groups are the most common medical groups in Seattle, with 41

Each group is counted once, under its main specialty. Rehabilitation and therapy groups are second, with 32, and 29 Seattle groups are multi-specialty.

Source: Dmand AI Professional Profile Data

14,378 Washington HCPs work in Seattle medical groups, 8,187 of them physicians

Each clinician is counted once, across every Seattle group they are linked to. Only clinicians with a Washington address are counted.

HCPs in Seattle medical groups by type

Physicians (MD, DO)8,18757%
Nurses and nurse practitioners2,12815%
Physician assistants1,3469%
Behavioral health clinicians9677%
Therapists (PT and OT)7675%
Other HCPs9837%

Source: Dmand AI Affiliation Data

Each Seattle medical 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 Seattle medical group directory

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

The directory lists groups based in Seattle with a Medicare PAC ID.

FAQ

Frequently asked questions about medical groups in Seattle

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

How many medical groups are in Seattle?

There are 176 medical groups based in Seattle with a Medicare PAC ID: 29 multi-specialty and 147 single-specialty. 90 of them have more than one site.

What is the largest medical group in Seattle?

UW Physicians, with 2,833 physicians and 4,269 HCPs with a Washington address. Washington Permanente Medical Group, P.C. is second with 1,612, and Children's University Medical Group (CUMG) is third with 931.

Which health system has the most medical groups in Seattle?

By physicians, University of Washington, with 2,859 across 4 groups, followed by Providence Health & Services with 1,452 and Seattle Children's Hospital, Research Institute and Foundation with 1,068.

How many Seattle medical groups are independent?

137, or 78%, have no larger parent organization in the Dmand AI org hierarchy. 14 belong to a health system or hospital and 14 to a physician platform or corporate owner.

How many Seattle medical groups practice at a hospital?

34 Seattle groups practice at a hospital site linked to them in the Dmand AI org hierarchy.

How do I find a medical group's NPI or PAC ID?

Each medical group profile lists the group NPI and Medicare PAC ID at the top, with the main address and phone number. The NPI comes from the NPPES NPI Registry and the PAC ID from CMS Medicare enrollment.

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