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

Dr. Nicolaas W De Wette, MD

Individual provider Radiation Oncology Physician · NPI 1689677692

Dr. Nicolaas W De Wette, MD practises Radiation Oncology in Portland, Oregon. Qualified in 1988, 38 years ago. Practices with Northwest Cancer Specialists PC, a 69-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
38
Licensed in
OR
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

265 N Broadway St
Portland, OR 97227-1800
Phone: (503) 280-1223
Fax: (503) 528-5252
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence MD23344 (OR)

Record details

NPI number1689677692
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 23, 2005
Last updated in NPPESJune 8, 2026
Certification dateJune 8, 2026

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Group practice Northwest Cancer Specialists Pc — 69 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients55
Services billed 728 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Northwest Cancer Specialists PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 69 clinicians in the practice; 12 are shown here.

Other providers in Portland