NPI Portal NPI Lookup & Verification

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

Mrs. Ellen Claire Plagg, MS

Respiratory/Developmental/Rehabilitative Specialist/Technologist in Oklahoma City, OK · enumerated 2018.

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

National Provider Identifier

1831677970

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Registry record

Entity type Individual (Type 1)
Name Mrs. Ellen Claire Plagg
Credential MS
Sex Female
Practice address Oklahoma City, OK, 73134
Fax (405) 467-6100
Enumeration date Jul 31, 2018
Last updated in NPPES Dec 2, 2024

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

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 2018024937 (MO) Secondary
225500000X Respiratory/Developmental/Rehabilitative Specialist/Technologist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5582 (OK) Primary

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 Ellen Plagg's NPI record?
Cross-check NPI 1831677970 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1831677970 active?
Yes, as of the latest NPPES snapshot, NPI 1831677970 is active (record last updated 2024-12-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-02.