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

Charles E Williamson, NP

Individual provider Adult Health Nurse Practitioner · NPI 1740446335

Charles E Williamson, NP is an Adult Health Nurse Practitioner in Portland, Oregon. Licensed in Oregon. Registered with an NPI since 2008.

Licensed in
OR
In the registry since
2008
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

2119 NE Halsey St
Portland, OR 97232-1522
Phone: (503) 975-9398
Fax: (503) 221-8320
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 202114724NP-PP (OR)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence 202114724NP-PP (OR)

Record details

NPI number1740446335
Entity typeIndividual (Type 1)
GenderMale
Credentials NP
Sole proprietorNo
NPI enumeratedAugust 2, 2008
Last updated in NPPESOctober 1, 2025
Certification dateOctober 1, 2025

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