Summary

Dr. Matthew Lonergan is a board-certified oncologist and internal medicine physician who brings 32 years of medical expertise to cancer care. He earned his medical degree from Harvard Medical School and completed his residency at the University of Washington School of Medicine. His dual specialization allows him to provide comprehensive cancer treatment while addressing the full spectrum of internal medicine needs that often accompany oncology care.

Dr. Lonergan practices at multiple locations across Oregon and Washington, with affiliations at Harborview Medical Center, UW Medical Center Montlake, and Good Samaritan Hospital Corvallis, among others. He focuses extensively on breast cancer treatment, including complex cases involving metastatic or recurrent disease and specialized conditions like Paget disease of the breast. His approach includes comprehensive blood work analysis through complete blood counts and white blood cell differentials to monitor patient health throughout treatment. Patients rate him 4.4 out of 5 stars for his care.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.4
  • 32 years of experience
  • University Of Washington School Of Medicine
  • 5 written reviews
  • 2 specialties
  • 14 areas of expertise
  • 2 board certifications
  • 6 hospital affiliations
  • 6 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Matthew Lonergan has 6 locations

Willamette Valley Cancer Institute And Research Center

340 9th StFlorence, OR 97439
MonClosed
Tue10:00 am - 4:00 pm
Wed10:00 am - 4:00 pm
ThuClosed
FriClosed
SatClosed
SunClosed

Willamette Valley Cancer Institute And Research Center

444 Nw Elks DrCorvallis, OR 97330
Mon8:00 am - 5:00 pm
Tue7:30 am - 5:30 pm
Wed7:30 am - 5:30 pm
Thu7:30 am - 5:30 pm
Fri7:30 am - 5:30 pm
SatClosed
SunClosed

Uw Medical Center Montlake

1959 Ne Pacific StSeattle, WA 98195

Peace Harbor Hospital

400 9th StFlorence, OR 97439

Good Samaritan Hospital Corvallis

3600 Nw Samaritan DrCorvallis, OR 97330

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Dr. Matthew Lonergan, MD
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Dr. Matthew Lonergan, MDMelissa L MoffettDr. Roma Jane Sprung, MDDr. William George Gutheim, MD
OncologyInternal MedicineHospital MedicineNephrology
Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
4.1 
32 Years of Experience 42 Years of Experience 35 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English
Florence , ORFlorence , ORReedsport , ORSpringfield , OR
Med School: Harvard Medical School Med School: Faculte De Medecine Et De Pharmacie De Grenoble Universite Joseph Fourier Med School: Virginia Commonwealth University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Matthew Lonergan

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Matthew Lonergan has the following 2 specialties

Specialty Expertise

Dr. Matthew Lonergan has the following 14 areas of expertise

  • Blood Cancer
  • Bone Marrow Transplant
  • Breast Cancer
  • Cancer
  • Chemotherapy
  • Epidemiology
  • Head and Neck Cancer
  • Internal Medicine
  • Leukemia
  • Lymphoma
  • Metastatic Breast Cancer
  • Myelofibrosis
  • Myeloma
  • Prostate Cancer (Prostatic Neoplasm)

Certifications, License, & Education

32 Years Experience

Dr. Matthew Lonergan holds an expired medical license in the states of Oregon and Washington.

Medical License

Medical Doctor with an expired medical license in the state of Oregon that expired in 2025 and an expired medical license in the state of Washington that expired in 2026.

Education & Training

Residency

Completed their residency at University Of Washington School Of Medicine.

Medical School

Graduated from Harvard Medical School in 1994.

NPI Number

Dr. Lonergan's NPI number is 1639122591.

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Frequently Asked Questions

Which hospitals is Dr. Matthew Lonergan affiliated with?
Dr. Matthew Lonergan is affiliated with Harborview Medical Center, Uw Medical Center Montlake, Good Samaritan Hospital Corvallis, Uw Medical Center Northwest, Peace Harbor Hospital, and Fred Hutch At Uw Medical Center Montlake.
Does Dr. Matthew Lonergan accept my insurance?
You can see the insurance plans that Dr. Matthew Lonergan accepts on their Vitals profile.
Where is Dr. Matthew Lonergan's office located?
Dr. Matthew Lonergan's office is located at 340 9th St, Florence, OR, 97439.
Does Dr. Matthew Lonergan accept virtual/telehealth appointments?
Dr. Matthew Lonergan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Matthew Lonergan accepting new patients?
Dr. Matthew Lonergan is accepting new patients on Vitals. View Dr. Matthew Lonergan's profile on Vitals to make an appointment.

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