Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Cassandra Michelle Niemi, MD

Individual provider Gynecologic Oncology Physician · NPI 1861781767

Cassandra Michelle Niemi, MD is an Obstetrics/Gynecology in Portland, Oregon. Qualified in 2011, 15 years ago. Practices with Providence Health and Services - Oregon, a 191-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Oregon.

Years since qualifying
15
Licensed in
OR
In the registry since
2011
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4805 NE Glisan St Ste 11N
Portland, OR 97213-2933
Phone: (503) 215-2075
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 9555 Sw Barnes Rd Ste 150, Portland, OR 97225-6691 — (503) 297-7403

Specialties & licences

Gynecologic Oncology Physician (primary) Taxonomy 207VX0201X · Licence MD186977 (OR)

Record details

NPI number1861781767
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 31, 2011
Last updated in NPPESMarch 22, 2021
Certification dateMarch 22, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Providence Health And Services - Oregon — 191 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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