Cassandra Michelle Niemi, MD
Gynecologic Oncology Obstetrics & Gynecology
Cassandra Michelle Niemi is a Gynecologic Oncology Obstetrics & Gynecology specialist based in Portland, OR with over 15 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Cassandra Michelle Niemi, MD has practiced obstetrics & gynecology for 15+ years, working in group practice. She has been practicing since 2011 — over 15 years. CMS Medicare data shows her patients commonly have hypertension, high cholesterol, and cancer. CMS MIPS quality score: 87.76/100 (2023).
At a glance
- Uses generic medications more than 28% of reporting doctors in Oregon
- Federal MIPS score higher than 30% of MIPS-scored doctors in Oregon
- Virtual visits available — no app or travel required
Older · 1889dNPPES updated 2021-03-22 · verify NPI on CMS · Verify license at Oregon Medical Board
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
MIPS Score
202387.76/100
Oregon avg: 89.5 · US avg: 83.6
✓ Higher than most doctors nationally(+4.2 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better6.98%
Oregon avg: 7 · US avg: 5.1
⚠ Lower than most doctors nationally(+1.9 pts)
6.98% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better83.7%
Oregon avg: 83.7 · US avg: 82.8
✓ Higher than most doctors nationally(+0.9 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
59
Unique beneficiaries
Standard volumePrescription Recipients
45
Patients prescribed
Prescriptions Written
172
Total claims
Total Medicare drug cost: $22k
Percentile rankings compared against 1,341 reporting peers in Oregon.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Cancer.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-1%) — less common here
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+23%) — a focus area for this doctor
Excessive worry or fear that interferes with daily life
US avg: 34.1%↑ More patients than average (+5%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%Conditions affecting emotional state, including depression and bipolar disorder
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-18%) — less common here
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-1%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$376 received from industry
4 transactions reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Cassandra Michelle Niemi's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Mar 21, 2021
Self-reported via NPPES
15 years in practice
Experienced
An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.
Taxonomy: 207VX0201X
Mailing address
Po Box 3158, Portland, OR 97208-3158
Differs from practice location
Virtual Gynecologic Oncology Care With Cassandra Michelle Niemi
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Cassandra Michelle Niemi for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Portland required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Cassandra Michelle Niemi
Dr. Niemi is listed as active in the NPI registry with telehealth listed in Portland, OR. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (503) 215-2075.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Cassandra Michelle Niemi
Practice Location
4805 Ne Glisan St Ste 11n, Portland, OR 97213-2933
Mailing Address
Po Box 3158, Portland, OR 97208-3158
This is a provider directory. Contact the office directly to schedule appointments.
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