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

Dr. Nicolaas W De Wette, MD

Individual provider Radiation Oncology Physician · NPI 1689677692

Dr. Nicolaas W De Wette, MD is a 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.

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Practice location Address checks out

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

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

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