NPI Portal NPI Lookup & Verification

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

Hannah Ruth Day

Social Worker in Warren, OH · enumerated 2019.

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

National Provider Identifier

1821635988

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Registry record

Entity type Individual (Type 1)
Name Hannah Ruth Day
Sex Female
Practice address Warren, OH, 44484
Enumeration date Dec 6, 2019
Last updated in NPPES Sep 24, 2024

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

Taxonomy & licenses

251S00000X Community/Behavioral Health Agency Agencies Secondary
104100000X Social Worker Behavioral Health & Social Service Providers 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 Hannah Day's NPI record?
Cross-check NPI 1821635988 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1821635988 active?
Yes, as of the latest NPPES snapshot, NPI 1821635988 is active (record last updated 2024-09-24).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-24.