Summary

Dr. Cassandra Niemi treats endometrial (uterine) cancer, advanced cancer, and cancer, and performs PET scan and PET-CT scan procedures. She practices obstetrics and gynecology and oncology in Portland, Oregon.

Dr. Niemi completed her residency at Oregon Health & Science University School of Medicine in 2015 and her fellowship at the University of Wisconsin Hospital and Clinics in 2018. Patients on Vitals rate Dr. Niemi 4.99 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 15 years of experience
  • 30 insurance plans accepted
  • speaks English
  • University of Wisconsin Hospital and Clinics
  • 149 written reviews
  • 1 award
  • 3 specialties
  • 3 areas of expertise
  • 1 office location
  • Female

Awards

  • Vitals Preferred Provider

    • Vitals Preferred Provider Award
      • Preferred Provider badge recognizes providers that are committed to transparency, responsiveness and great service to patients, and have earned a high patient satisfaction rating.

  • Click for our Methodology

Office Location

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Cassandra M Niemi, MD
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Cassandra M Niemi, MDOlivia Lynn VennebergDr. Catherine Scheible John, MDDr. Jennifer Claire Thompson, MD
Obstetrics & GynecologyNurse PractitionerGynecologic OncologyFemale Pelvic Medicine and Reconstructive Surgery
Accepts New Patients Accepts New Patients
5 
0 
0 
0 
15 Years of Experience 9 Years of Experience 16 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English
Portland , ORRIDGEFIELD , WAClackamas , ORClackamas , OR
Med School: University of Michigan Med School: Oregon Health & Science University School Of Medicine Med School: UNIVERSITY OF KANSAS SCHOOL OF MEDICINE
Current Profile
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Insurance Plans Accepted by Cassandra M Niemi

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna PROV Employee POS
  • Age Right (Marquis Advantage)
  • BCBS Federal
  • Champ VA
  • Cigna Open Access Plus
  • Cigna PPO
  • First Choice Health Network
  • Medicaid OR Plus Open Card
  • Medicare A&B
  • Moda Connexus Network
  • Providence ElderPlace PACE
  • Providence Health Plan
  • Regence BCBS EPO - Out of State
  • Regence BCBS PAR
  • Regence BCBS PPO
  • Regence BCBS PPP
  • Samaritan Health Plan Med Advantage
  • Tricare for Life
  • Tricare Prime
  • Tricare Select
  • Tricare US Family Health Plan
  • Tricare West
  • United Healthcare Charter/Charter Plus
  • United Healthcare Choice/Choice Plus
  • United Healthcare Complete Care HMO
  • United Healthcare Med Advantage HMO
  • United Healthcare Nexus ACO Network
  • United Healthcare POS
  • United Healthcare PPO
  • United Healthcare Surest

Medical Specialties

Cassandra M Niemi has the following 3 specialties

Specialty Expertise

Cassandra M Niemi has the following 3 areas of expertise

  • Gynecological Oncology
  • Gynecologist
  • Oncologist

Certifications, License, & Education

15 Years Experience

Cassandra M Niemi 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

Fellowship

Completed their fellowship at University of Wisconsin Hospital and Clinics in 2018.

Residency

Completed their residency at Oregon Health & Science University School of Medicine in 2015.

Medical School

Graduated from University of Michigan in 2011 and University of Michigan Office of the Registrar in 2011.

NPI Number

Cassandra M Niemi's NPI number is 1861781767.

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Frequently Asked Questions

Is Cassandra Niemi accepting new patients?
Cassandra Niemi is accepting new patients on Vitals. View Cassandra Niemi's profile on Vitals to make an appointment.
Does Cassandra Niemi accept virtual/telehealth appointments?
Cassandra Niemi has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Cassandra Niemi accept my insurance?
You can see the insurance plans that Cassandra Niemi accepts on their Vitals profile.
What languages does Cassandra Niemi speak?
Cassandra Niemi speaks English.
How can I make an appointment with Cassandra Niemi?
You can find contact information for Cassandra Niemi here on Vitals.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards

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