The 30 largest healthcare providers in Portland (2026 list)

The healthcare providers in Portland listed here are large organizations, predominantly hospitals and health systems, with a focus on comprehensive care. Oregon Health & Science University, founded in 1887, specializes in research and education. Legacy Health offers primary, secondary, and tertiary healthcare services. MaineHealth and MaineHealth Maine Medical Center provide integrated health services across New England. Multnomah County also plays a role in health services among its diverse offerings. Central City Concern supports individuals experiencing homelessness and addiction with housing and healthcare.

Most of these entities are long-established, with several founded in the late 19th or late 20th century, indicating a mature healthcare landscape. The list highlights a concentration of large, multi-faceted healthcare organizations, often with a non-profit or public service mission, providing a broad spectrum of medical services from general care to specialized treatment and social support.

#	Company	Industry	Headquarters	Employees	Founded
1	Oregon Health & Science University ohsu.edu Research and education focused on disease understanding, treatment innovations, and training future health professionals across various medical fields.	Hospitals and Health Care	🇺🇸 Portland	17,535	1887
2	Legacy Health legacyhealth.org nonprofit organization providing primary, secondary, tertiary healthcare services across Portland, Vancouver metro, and mid-Willamette Valley areas	Hospitals and Health Care	🇺🇸 Portland	8,230	1989
3	MaineHealth Maine Medical Center mainehealth.org A leading healthcare resource in northern New England with state-of-the-art facilities, world-class research, and a commitment to professional growth in a vibrant city environment	Hospitals and Health Care	🇺🇸 Portland	6,498	n/a
4	MaineHealth mainehealth.org A not-for-profit integrated health system providing preventive care, diagnosis, and treatment to residents in Maine and New Hampshire through various healthcare services and facilities	Hospitals and Health Care	🇺🇸 Portland	6,228	1997
5	Multnomah County multco.us Provides diverse essential services including health, justice, roads, libraries, elections, and mental health, prioritizing resident needs and community quality of life.	Government Administration	🇺🇸 Portland	3,784	1854
6	Central City Concern centralcityconcern.org Non-profit organization in Portland supports individuals impacted by homelessness, poverty, and addiction with housing, healthcare, employment resources, and peer support for personal transformation and recovery	Non-profit Organizations	🇺🇸 Portland	1,182	1979
7	Consonus Healthcare consonushealth.com Provider of contract rehab services, long-term care pharmacy, and home healthcare, dedicated to improving physical, mental, social, and spiritual health	Hospitals and Health Care	🇺🇸 Portland	886	n/a
8	Kaiser Permanente Northwest healthy.kaiserpermanente.org A leading nonprofit health provider committed to affordable high-quality healthcare services, improving member and community health through care innovations and health education	Hospitals and Health Care	🇺🇸 Portland	874	1945
9	Cascadia Health cascadiahealth.org Integrated healthcare approach providing whole health care model for mental health, addiction services, primary care, and housing to promote well-being	Mental Health Care	🇺🇸 Portland	839	n/a
10	Martin's Point Health Care martinspoint.org Innovative not-for-profit organization providing high-quality, affordable healthcare and coverage in Maine and New England through healthcare centers and insurance plans	Hospitals and Health Care	🇺🇸 Portland	818	1981
11	The Oregon Clinic oregonclinic.com A prominent specialty physician practice in Oregon with over 300 providers offering compassionate care in 30+ specialties across 60 clinic locations	Hospitals and Health Care	🇺🇸 Portland	804	1994
12	Adventist Health Portland adventisthealth.org A health care system with a medical center, clinics, and hospice services, focusing on whole-person care and inspired by a mission of love and hope	Hospitals and Health Care	🇺🇸 Portland	724	n/a
13	InterMed, P.A.intermed.com A physician-owned primary care practice in Maine offering a wide range of medical services, specialty care, surgical procedures, urgent care, and on-site medical services	Medical Practices	🇺🇸 Portland	699	1993
14	Spurwink spurwink.org Behavioral health and education services for individuals of all ages and families, supporting them through challenges towards healthy, engaged lives in communities	Mental Health Care	🇺🇸 Portland	699	1960
15	Northwest Permanente northwest.permanente.org Northwest Permanente, PC offers collaborative and innovative healthcare opportunities with a focus on excellent patient care, career growth, and competitive benefits	Hospitals and Health Care	🇺🇸 Portland	600	n/a
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16	Northern Light Mercy Hospital northernlighthealth.org Acute care hospital in Portland, Maine offering compassionate and clinically excellent healthcare, prioritizing the poor and disadvantaged, with private rooms and advanced medical technology	Hospitals and Health Care	🇺🇸 Portland	520	1918
17	Albertina Kerr albertinakerr.org Providing programs and services for individuals with disabilities and mental health challenges, including residential care, supportive employment, and crisis psychiatric care for youth	Health and Human Services	🇺🇸 Portland	508	1907
18	Trillium Family Services trilliumfamily.org Leading mental health organization in Oregon focused on trauma-informed care, promoting wellness, and providing services to families for better communities	Mental Health Care	🇺🇸 Portland	494	1867
19	LifeWorks NW lifeworksnw.org This organization provides mental health and addiction services in Washington, Clackamas, and Multnomah counties, emphasizing holistic health and empowerment	Mental Health Care	🇺🇸 Portland	450	1961
20	Women's Healthcare Associates, LLC whallc.com Passionate team humanizing healthcare, inspired by patients' stories, providing personalized, culturally competent care to support optimal health journey	Medical Practices	🇺🇸 Portland	429	1999
21	National University of Natural Medicine nunm.edu Leading educational institution offering accredited programs in naturopathic medicine, Chinese medicine, global health, and nutrition, blending ancient healing with modern science	Higher Education	🇺🇸 Portland	427	1956
22	The Children's Clinic childrens-clinic.com A trusted pediatric clinic in Portland with a team of board-certified physicians and experienced support staff, providing quality and convenient healthcare for children	Medical Practices	🇺🇸 Portland	420	n/a
23	Morrison Child and Family Services morrisonkids.org This company provides culturally responsive mental health and substance use disorder treatment for children, youth, and families impacted by systemic racism and trauma	Non-profit Organizations	🇺🇸 Portland	357	1947
24	University of Western States uws.edu A leading institution offering evidence-informed health care education with integrated programs in chiropractic, naturopathic medicine, nutrition, psychology, counseling, and sports medicine	Higher Education	🇺🇸 Portland	340	1904
25	OHSU Knight Cancer Institute ohsu.edu A medical practice company located in Portland, Oregon, specializing in cancer treatment and research at the Knight Cancer Institute	Medical Practices	🇺🇸 Portland	337	n/a
26	Community Counseling Center annalotanuk.co.uk A nonprofit family service agency in Maine providing prevention, education, treatment, and wellness programs to individuals and families in need	Mental Health Care	🇺🇸 Portland	326	1971
27	The Portland Clinic theportlandclinic.com Established in 1921, this Portland-based medical group offers personalized care through modern facilities, advanced technology, and a team of medical specialists Serving over 90,000 families annually	Medical Practices	🇺🇸 Portland	322	1921
28	Rarebreed Veterinary Partners rarebreedvet.com Innovative veterinary group prioritizing exceptional patient care, client service, and employee experience to redefine the veterinary work environment	Veterinary Services	🇺🇸 Portland	203	2018
29	Multnomah Orthopedic Clinic multnomahortho.com A leading orthopedic clinic offering comprehensive care from expert physicians specializing in various areas including sports medicine, trauma care, and joint replacements	Medical Practices	🇺🇸 Portland	11	n/a
30	Ricardo C. Guillen, DDS PLLC implantdentist.online Providing quality dental procedures such as teeth whitening, implants, porcelain veneers, and smile makeovers to help clients achieve their dream smiles	Hospitals and Health Care	🇺🇸 Portland	3	2015

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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 13, 2026.

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The 30 largest healthcare providers in Portland

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