Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gretchen M Heringhaus, AA

Anesthesiologist Assistant in Westerville, OH · enumerated 2009.

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

National Provider Identifier

1891029880

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Registry record

Entity type Individual (Type 1)

Name Gretchen M Heringhaus

Credential AA

Sex Female

Practice address 500 S Cleveland Ave, Anesthesia Dept/Coa, Westerville, OH, 43081

Phone (614) 898-6659

Fax (614) 898-8631

Enumeration date Sep 24, 2009

Last updated in NPPES Jun 27, 2025

Taxonomy & licenses

367H00000X Anesthesiologist Assistant Physician Assistants & Advanced Practice Nursing Providers · License 67.000192 (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 Gretchen Heringhaus's NPI record?

Cross-check NPI 1891029880 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1891029880 active?

Yes, as of the latest NPPES snapshot, NPI 1891029880 is active (record last updated 2025-06-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-27.