Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allison Treleaven, O.D.

Optometrist in Fort Wayne, IN · enumerated 2016.

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

National Provider Identifier

1043766421

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Allison Treleaven

Credential O.D.

Sex Female

Practice address 1717 S Calhoun St, Fort Wayne, IN, 46802

Phone (260) 458-2641

Enumeration date Aug 26, 2016

Last updated in NPPES Jul 5, 2018

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 18003981A (IN) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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

Is NPI 1043766421 active?

Yes, as of the latest NPPES snapshot, NPI 1043766421 is active (record last updated 2018-07-05).

How do I verify Allison Treleaven's NPI record?

Cross-check NPI 1043766421 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-07-05.