NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Christine Catherine Siddall, RN

Case Management Registered Nurse in Tualatin, OR · enumerated 2013 · practices at Aps Healthcare.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1033549100

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Registry record

Entity type Individual (Type 1)
Name Mrs. Christine Catherine Siddall
Credential RN
Sex Female
Practice address Tualatin, OR, 97062
Fax (866) 350-1311
Enumeration date Nov 26, 2013
Last updated in NPPES Nov 26, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163WC0400X Case Management Registered Nurse Nursing Service Providers · License 090000142RN (OR) Primary
163WC0400X Case Management Registered Nurse Nursing Service Providers · License RN00126996 (WA) Secondary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Christine Siddall's NPI record?
Cross-check NPI 1033549100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1033549100 active?
Yes, as of the latest NPPES snapshot, NPI 1033549100 is active (record last updated 2013-11-26).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-26.