CHARLES E WILLIAMSON NP
NPI 1740446335
Nurse Practitioner - Psychiatric/Mental Health in Portland, OR

Q: What is Charles Williamson's NPI number?

The NPI number for Charles Williamson is 1740446335. It was assigned to this individual provider in the NPPES registry on August 2, 2008.

Q: What is Charles Williamson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Active since August 02, 2008PECOS Enrolled

2119 NE HALSEY ST, PORTLAND, OR 97232(503) 975-9398(503) 221-8320 Get Directions Write a Review

NPPES record last updated: October 1, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 8, 2025, Mar 27, 2025, Dec 30, 2024 and 2 more (5 updates tracked since 2023).

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About Charles E Williamson Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHARLES E WILLIAMSON NP (NPI 1740446335) is an individual psychiatric/mental health provider in Portland, Oregon, licensed in Oregon (202114724NP-PP) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740446335

Entity TypeIndividualMale

Primary Taxonomy363LP0808X

Provider Legal NameCHARLES E WILLIAMSONCredential: NP

Location Address2119 NE HALSEY STPortland, OR 97232-1522

Mailing Address2119 Ne Halsey StPortland, OR 97232-1522 · (503) 975-9398 · Fax (503) 221-8320

Phone(503) 975-9398

Fax(503) 221-8320

Sole ProprietorNo

Enumeration DateAugust 2, 2008

Last NPPES UpdateOctober 1, 20255 updates tracked since enumeration

NPPES CertifiedOctober 1, 2025

✔ NPI 1740446335 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in OR · 202114724NP-PP

Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License 202114724NP-PP (OR)

2119 NE HALSEY ST, Portland, OR 97232

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Charles E Williamson Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97232 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$90.51 typical visit price

range $58.99 – $176.88

Typical copayment $22.62 (range $14.74 – $44.22)

Most-billed visit code 99203

Established Patient

$103.51 typical visit price

range $19.32 – $144.79

Typical copayment $25.87 (range $4.83 – $36.19)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JAMES CHRISTOPHER PERDUE CRNP

Nurse Practitioner (Family)