Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Heather Margaret Klier-Onderak, MSW, LISW

Clinical Social Worker in Columbus, OH · enumerated 2007 · practices at Central High School.

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

National Provider Identifier

1023210838

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Registry record

Entity type Individual (Type 1)

Name Ms. Heather Margaret Klier-Onderak

Credential MSW, LISW

Sex Female

Practice address 840 W State St, Columbus, OH, 43222

Phone (614) 221-7855

Fax (614) 221-8797

Enumeration date Jun 4, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License I.0030876 (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

How do I verify Heather Klier-Onderak's NPI record?

Cross-check NPI 1023210838 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1023210838 active?

Yes, as of the latest NPPES snapshot, NPI 1023210838 is active (record last updated 2007-07-08).

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Rejeana Haynes Social Worker · Columbus, OH NPI 1013119189 Erin Calhoun Professional Counselor · Columbus, OH NPI 1316149081 Central High School Local Education Agency (LEA) · Columbus, OH NPI 1306201413

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.