Summary

Dr. Brett Poisson is an oncology specialist with extensive expertise in internal medicine, bringing over three decades of experience to cancer care. He completed his medical education at the University of the Witwatersrand Faculty of Health Sciences and furthered his training through a residency at the University of Pennsylvania Health System. His dual specialization allows him to provide comprehensive care that addresses both cancer treatment and overall health management. Dr. Poisson is fluent in English and Spanish.

Dr. Poisson practices throughout southern Oregon, with affiliations at Providence Medford Medical Center, Asante Rogue Regional Medical Center, Asante Ashland Community Hospital, and Asante Three Rivers Medical Center. His locations span Medford, Grants Pass, and Ashland. He focuses on helping patients manage treatment side effects like nausea and vomiting from cancer therapy. Dr. Poisson also addresses tobacco-related concerns, including cessation support and relapse prevention. His expertise includes blood work analysis through complete blood counts and white blood cell studies. Patients consistently rate him highly, with an average score of 5.0.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 34 years of experience
  • speaks English, Spanish
  • University Of Pennsylvania Health System
  • 3 written reviews
  • 2 specialties
  • 13 areas of expertise
  • 2 board certifications
  • 4 hospital affiliations
  • 7 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Brett Arthur Poisson has 7 locations

Hematology Oncology Associates Pc

2900 Doctors Park Dr Ste 100Medford, OR 97504
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Providence Medford Medical Center

1111 Crater Lake AveMedford, OR 97504

Hematology Oncology Associates Pc

510 SW Ramsey AveGrants Pass, OR 97527
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Hematology Oncology Associates Pc

3011 E Barnett RdMedford, OR 97504
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Asante Three Rivers Medical Center

500 Sw Ramsey AveGrants Pass, OR 97527

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Dr. Brett Arthur Poisson, MDDr. Lucas Lee PfeiferDr. Martha Marie Cavazos, MDDr. Susan Elizabeth Kohler, MD
OncologyInternal MedicineEndocrinology, Diabetes & MetabolismInternal Medicine
Accepts New Patients Accepts New Patients
3.8 
3.9 
34 Years of Experience 6 Years of Experience 29 Years of Experience 40 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Spanish Speaks English, Spanish
Medford , ORMedford , ORAshland , ORMedford , OR
Med School: University Of The Witwatersrand Faculty Of Health Sciences Med School: Pacific Northwest University Of Health Science College Of Osteopathic Med Med School: Mcgovern Medical School At The Univ Of Texas Health Science Ctr At Houston Med School: Perelman School Of Medicine At University Of Pennsylvania
Current Profile
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Insurance Plans Accepted by Dr. Brett Arthur Poisson

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Brett Arthur Poisson has the following 2 specialties

Specialty Expertise

Dr. Brett Arthur Poisson has the following 13 areas of expertise

  • Acute Myeloid Leukemia
  • Blood Cancer
  • Bone Marrow Transplant
  • Cancer
  • Chemotherapy
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Internal Medicine
  • Leukemia
  • Lymphoma
  • Myelofibrosis
  • Myeloma

Certifications, License, & Education

34 Years Experience

Dr. Brett Arthur Poisson holds an expired medical license in the state of Oregon.

Medical License

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

Education & Training

Residency

Completed their residency at University Of Pennsylvania Health System.

Medical School

Graduated from University Of The Witwatersrand Faculty Of Health Sciences in 1992.

NPI Number

Dr. Poisson's NPI number is 1255383337.

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Frequently Asked Questions

Which hospitals is Dr. Brett Poisson affiliated with?
Dr. Brett Poisson is affiliated with Providence Medford Medical Center, Asante Rogue Regional Medical Center, Asante Ashland Community Hospital, and Asante Three Rivers Medical Center.
What languages does Dr. Brett Poisson speak?
Dr. Brett Poisson speaks English and Spanish.
Does Dr. Brett Poisson accept my insurance?
You can see the insurance plans that Dr. Brett Poisson accepts on their Vitals profile.
Is Dr. Brett Poisson accepting new patients?
Dr. Brett Poisson is accepting new patients on Vitals. View Dr. Brett Poisson's profile on Vitals to make an appointment.
Where is Dr. Brett Poisson's office located?
Dr. Brett Poisson's office is located at 2900 Doctors Park Dr Ste 100, Medford, OR, 97504.

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