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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Robert Siddoway, LCSW

Clinical Social Worker in Idaho Falls, ID · enumerated 2015.

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

National Provider Identifier

1235523457

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Registry record

Entity type Individual (Type 1)
Name Mr. Robert Siddoway
Credential LCSW
Sex Male
Practice address 254 E St, Suite B, Idaho Falls, ID, 83402
Enumeration date Mar 25, 2015
Last updated in NPPES Apr 24, 2024

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCSW-34243 (ID) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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

Is NPI 1235523457 active?
Yes, as of the latest NPPES snapshot, NPI 1235523457 is active (record last updated 2024-04-24).
How do I verify Robert Siddoway's NPI record?
Cross-check NPI 1235523457 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-24.