Updated October 2026

Medical groups in Portland, OR

Medical group directory
Portland, Oregon

Medical groups: 261
Multi-specialty: 54
Single-specialty: 206
More than one site: 127
100+ physicians: 15

There are 261 medical groups in Portland with a Medicare PAC ID. Kaiser Permanente Northwest is the largest, with 1,782 Oregon physicians, followed by Oregon Health & Science University (OHSU) with 1,590. 77% of Portland groups are independent.

Find the decision makers at all 261 Portland medical groups

Work emails and mobile numbers for practice owners, administrators and physician leaders, found through healthcare waterfall enrichment, with a free Dmand AI account.

View contacts for free

Kaiser Permanente Northwest is the largest medical group in Portland, with 1,782 physicians

Ranked by physicians with an Oregon address linked to each group based in Portland. Oregon Health & Science University (OHSU) is second with 1,590, and Legacy Medical Group-Northwest third with 630. 15 Portland groups have 100 or more physicians.

Filter this list with a free account

Sort and filter all 261 Portland medical groups by specialty, parent organization, group size, EHR in use and decision makers in Dmand AI.

Filter in Dmand AI

Medical groups in Portland, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	Kaiser Permanente NorthwestPortland · 195 sites	Parent on file	1,782	2,932	Decision makers
2	Oregon Health & Science University (OHSU)Portland · 121 sites	Parent on file	1,590	2,392	Decision makers
3	Legacy Medical Group-NorthwestPortland · 115 sites	Parent on file	630	1,021	Decision makers
4	Providence Medical Group - OregonPortland · 43 sites	Parent on file	538	796	Decision makers
5	Hillsboro Medical Center (Tuality Healthcare)Portland · 24 sites	Parent on file	496	639	Decision makers
6	Providence Portland Medical CenterPortland · 31 sites	Parent on file	468	666	Decision makers
7	Legacy Emanuel Medical CenterPortland · 28 sites	Parent on file	441	664	Decision makers
8	The Oregon ClinicPortland · 39 sites	Parent on file	260	408	Decision makers
9	Legacy Good Samaritan Medical CenterPortland · 18 sites	Parent on file	237	357	Decision makers
10	Adventist Health PortlandPortland · 13 sites	Parent on file	233	337	Decision makers
11	Oregon Anesthesiology GroupPortland · 27 sites	-	196	232	Decision makers
12	TualityPortland · 11 sites	Parent on file	134	164	Decision makers
13	OHSU Department of Anesthesiology and Perioperative MedicinePortland · 7 sites	Parent on file	131	269	Decision makers
14	Northwest Acute Care SpecialistsPortland · 18 sites	Parent on file	122	192	Decision makers
15	Adventist Health PortlandPortland · 12 sites	Parent on file	111	139	Decision makers
16	OHSU Primary Care Clinic, ScappoosePortland · 11 sites	Parent on file	95	165	Decision makers
17	Multnomah County Health DepartmentPortland · 25 sites	Parent on file	78	234	Decision makers
18	The Portland ClinicPortland · 8 sites	-	78	118	Decision makers
19	Women's Healthcare AssociatesPortland · 10 sites	-	62	130	Decision makers
20	Shriners Hospitals For ChildrenPortland · 54 sites	Parent on file	45	64	Decision makers
21	OHSU \| Oregon Health & Science UniversityPortland · 6 sites	Parent on file	39	81	Decision makers
22	The Children's ClinicPortland · 3 sites	-	32	41	Decision makers
23	TRG Imaging (The Radiology Group)Portland · 8 sites	-	30	39	Decision makers
24	Pacific Imaging AssociatesPortland · 55 sites	-	30	30	Decision makers
25	Northwest Primary CarePortland · 13 sites	-	29	51	Decision makers
26	Northwest Renal ClinicPortland · 15 sites	-	27	42	Decision makers
27	Radiology Specialists of the Northwest (RSN)Portland · 17 sites	-	26	29	Decision makers
28	Fanno Creek ClinicPortland · 2 sites	-	25	34	Decision makers
29	Cedar Hills HospitalPortland · 4 sites	Parent on file	24	32	Decision makers
30	Cascadia HealthPortland · 13 sites	Parent on file	22	154	Decision makers
31	TS Radiology BillingsPortland · 4 sites	-	22	22	Decision makers
32	Orthopedic + Fracture SpecialistsPortland · 2 sites	-	20	59	Decision makers
33	The Oregon Clinic Broadway MedicalPortland · 2 sites	Parent on file	19	31	Decision makers
34	LifeWorks NWPortland · 13 sites	Parent on file	17	126	Decision makers
35	Neighborhood Health CenterPortland · 8 sites	Parent on file	15	49	Decision makers
36	Diagnostic Radiologists, P.C.Portland · 15 sites	-	14	16	Decision makers
37	Providence Connections ClinicPortland · 11 sites	Parent on file	12	18	Decision makers
38	RAYUS RadiologyPortland · 4 sites	Parent on file	12	13	Decision makers
39	Sellwood Medical ClinicPortland · 1 site	-	11	21	Decision makers
40	Cascade Pathology ServicesPortland · 9 sites	Parent on file	11	11	Decision makers
41	Native American Rehabilitation Association of the Northwest, Inc. (NARA NW)Portland · 10 sites	Parent on file	10	93	Decision makers
42	Northwest UrologyPortland · 7 sites	-	10	13	Decision makers
43	AIM HealthPortland · 3 sites	-	10	10	Decision makers
44	Coda, Inc.Portland · 8 sites	Parent on file	8	43	Decision makers
45	Northwest Gastroenterology ClinicPortland · 2 sites	-	8	15	Decision makers
46	South Tabor Family PhysiciansPortland · 1 site	-	8	15	Decision makers
47	Northwest Women's ClinicPortland · 3 sites	-	8	14	Decision makers
48	Portland Diabetes & Endocrinology CenterPortland · 1 site	-	8	12	Decision makers
49	Cascade Women's HealthPortland · 2 sites	-	8	8	Decision makers
50	Rehabilitation Medicine AssociatesPortland · 1 site	Parent on file	7	7	Decision makers

Showing 1 to 10 of 261 medical groups in Portland

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

State of Oregon has the most physicians in Portland medical groups, with 1,672 across 5 groups

Dmand AI maps every Portland medical group to its parent organization, up to the health system or platform at the top. 6 parent organizations have two or more Portland medical groups. Among health systems, Providence Health & Services has the most groups, 5. Each clinician counts once per parent organization.

Parent organizations with the most Portland medical groups
#	Parent organization	Portland groups	Physicians	HCPs
1	State of OregonState government	5	1,672	2,629
2	Legacy HealthHealth system	4	977	1,599
3	Providence Health & ServicesHealth system	5	763	1,106
4	Hillsboro Medical CenterHealth system	2	540	692
5	The Oregon ClinicPhysician practice platform	3	277	433
6	Adventist HealthHealth system	2	234	339

Parent organizations with two or more Portland groups

State of OregonState government · 5 Portland medical groups
Oregon Health & Science University (OHSU)Multi-specialty group · 121 sites
OHSU Department of Anesthesiology and Perioperative MedicineMedical group · 7 sites
3 more Portland groups and their practice sites

See every medical group, site and clinician under State of Oregon

Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.

Try for free

Source: Dmand AI Org Hierarchy Data

For sales teams

Find the decision makers at Portland medical groups

Dmand AI maps the owners, administrators and physician leaders at each of the 261 Portland medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.

Try for free Book a meeting

77% of Portland 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.

Portland medical groups by ownership

Independent20077%
Health system or hospital156%
Platform or corporate owner177%
Community or government177%
Other organization125%

Source: Dmand AI Org Hierarchy Data

39 Portland 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.

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

Behavioral and mental health groups are the most common medical groups in Portland, with 54

Each group is counted once, under its main specialty. Primary care groups are second, with 54, and 54 Portland groups are multi-specialty.

Source: Dmand AI Professional Profile Data

11,371 Oregon HCPs work in Portland medical groups, 6,120 of them physicians

Each clinician is counted once, across every Portland group they are linked to. Only clinicians with an Oregon address are counted.

HCPs in Portland medical groups by type

Physicians (MD, DO)6,12054%
Nurses and nurse practitioners1,63014%
Behavioral health clinicians1,40012%
Physician assistants8958%
Therapists (PT and OT)4144%
Other HCPs9128%

Source: Dmand AI Affiliation Data

Each Portland 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

Free account: 30 days free, self-serve, no credit card.

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

Sources for the Portland 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 Portland with a Medicare PAC ID.

FAQ

Frequently asked questions about medical groups in Portland

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 Portland?

There are 261 medical groups based in Portland with a Medicare PAC ID: 54 multi-specialty and 206 single-specialty. 127 of them have more than one site.

What is the largest medical group in Portland?

Kaiser Permanente Northwest, with 1,782 physicians and 2,932 HCPs with an Oregon address. Oregon Health & Science University (OHSU) is second with 1,590, and Legacy Medical Group-Northwest is third with 630.

Which health system has the most medical groups in Portland?

By physicians, State of Oregon, with 1,672 across 5 groups, followed by Legacy Health with 977 and Providence Health & Services with 763.

How many Portland medical groups are independent?

200, or 77%, have no larger parent organization in the Dmand AI org hierarchy. 15 belong to a health system or hospital and 17 to a physician platform or corporate owner.

How many Portland medical groups practice at a hospital?

39 Portland 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.

Dmand AI

Find the right contacts at every Portland medical group

Search 261 groups by specialty, size and parent organization, with the physicians and leaders at each one.

Start free trial Book a demo

30 days free
Self-serve
No credit card