# The 30 largest healthcare providers in Portland

Tamtam tracks 30 healthcare providers headquartered in Portland. This list ranks all of them by number of employees on LinkedIn, led by Oregon Health & Science University, Legacy Health and MaineHealth Maine Medical Center. Their median headcount is 600. Half of them were founded in 1961 or later.

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.

🇺🇸 Portland · 30 companies · Updated Nov 13, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Oregon Health & Science University](https://www.tamtam.ai/c/oregon-health-and-science-university) (ohsu.edu)<br>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](https://www.tamtam.ai/c/legacy-health) (legacyhealth.org)<br>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](https://www.tamtam.ai/c/mainehealth-maine-medical-center) (mainehealth.org)<br>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 |  |
| 4 | [MaineHealth](https://www.tamtam.ai/c/mainehealth) (mainehealth.org)<br>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](https://www.tamtam.ai/c/multnomah-county) (multco.us)<br>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](https://www.tamtam.ai/c/central-city-concern) (centralcityconcern.org)<br>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](https://www.tamtam.ai/c/consonus-healthcare) (consonushealth.com)<br>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 |  |
| 8 | [Kaiser Permanente Northwest](https://www.tamtam.ai/c/kaiser-permanente-northwest) (healthy.kaiserpermanente.org)<br>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](https://www.tamtam.ai/c/cascadia-health) (cascadiahealth.org)<br>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 |  |
| 10 | [Martin's Point Health Care](https://www.tamtam.ai/c/martin-s-point-health-care) (martinspoint.org)<br>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](https://www.tamtam.ai/c/the-oregon-clinic) (oregonclinic.com)<br>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](https://www.tamtam.ai/c/adventist-health-portland) (adventisthealth.org)<br>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 |  |
| 13 | [InterMed, P.A.](https://www.tamtam.ai/c/intermed-p-a) (intermed.com)<br>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](https://www.tamtam.ai/c/spurwink) (spurwink.org)<br>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](https://www.tamtam.ai/c/northwest-permanente) (northwest.permanente.org)<br>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 |  |
| 16 | [Northern Light Mercy Hospital](https://www.tamtam.ai/c/northern-light-mercy-hospital) (northernlighthealth.org)<br>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](https://www.tamtam.ai/c/albertina-kerr) (albertinakerr.org)<br>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](https://www.tamtam.ai/c/trillium-family-services) (trilliumfamily.org)<br>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](https://www.tamtam.ai/c/lifeworks-nw) (lifeworksnw.org)<br>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](https://www.tamtam.ai/c/women-s-healthcare-associates-llc) (whallc.com)<br>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](https://www.tamtam.ai/c/national-university-of-natural-medicine) (nunm.edu)<br>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](https://www.tamtam.ai/c/the-children-s-clinic) (childrens-clinic.com)<br>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 |  |
| 23 | [Morrison Child and Family Services](https://www.tamtam.ai/c/morrison-child-and-family-services) (morrisonkids.org)<br>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](https://www.tamtam.ai/c/university-of-western-states) (uws.edu)<br>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](https://www.tamtam.ai/c/ohsu-knight-cancer-institute) (ohsu.edu)<br>A medical practice company located in Portland, Oregon, specializing in cancer treatment and research at the Knight Cancer Institute | Medical Practices | 🇺🇸 Portland | 337 |  |
| 26 | [Community Counseling Center](https://www.tamtam.ai/c/community-counseling-center) (annalotanuk.co.uk)<br>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](https://www.tamtam.ai/c/the-portland-clinic) (theportlandclinic.com)<br>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](https://www.tamtam.ai/c/rarebreed-veterinary-partners) (rarebreedvet.com)<br>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](https://www.tamtam.ai/c/multnomah-orthopedic-clinic) (multnomahortho.com)<br>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 |  |
| 30 | [Ricardo C. Guillen, DDS PLLC](https://www.tamtam.ai/c/ricardo-c-guillen-dds-pllc) (implantdentist.online)<br>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 |

## How this list is built

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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Source: https://www.tamtam.ai/l/healthcare-providers-portland