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Ellen M Diemer, LSW

Clinical Social Worker in Ottawa, OH · enumerated 2022.

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

National Provider Identifier

1174230114

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Registry record

Entity type Individual (Type 1)
Name Ellen M Diemer
Credential LSW
Sex Female
Practice address 835 N Locust St, Ottawa, OH, 45875
Phone (419) 523-4300
Enumeration date Oct 31, 2022
Last updated in NPPES Oct 31, 2022

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License S5273 (OH) 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

What is the NPI number for Ellen Diemer?
The National Provider Identifier (NPI) for Ellen Diemer is 1174230114, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ellen Diemer practice?
The practice location on file with NPPES is in Ottawa, OH. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-31.