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

Nancy Teresa O'Maille, LISW

Clinical Social Worker in Willoughby, OH · enumerated 2006.

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

National Provider Identifier

1164457651

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Registry record

Entity type Individual (Type 1)

Name Nancy Teresa O'Maille

Credential LISW

Sex Female

Practice address Willoughby, OH, 44094

Phone (440) 953-1214

Fax (440) 953-1215

Enumeration date Jul 12, 2006

Last updated in NPPES Dec 30, 2010

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License I-0007662 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Nancy O'Maille practice?

The practice location on file with NPPES is in Willoughby, OH. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Nancy O'Maille?

The National Provider Identifier (NPI) for Nancy O'Maille is 1164457651, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-30.