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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Gretchen Irene Chadwick, OD

Optometrist in Redmond, OR · enumerated 2006 · practices at High Desert Eyecare.

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

National Provider Identifier

1811940778

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Registry record

Entity type Individual (Type 1)
Name Mrs. Gretchen Irene Chadwick
Credential OD
Sex Female
Practice address 443 Sw Evergreen Ave, Redmond, OR, 97756
Phone (541) 923-2221
Fax (541) 923-3776
Enumeration date May 19, 2006
Last updated in NPPES Dec 6, 2022

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2601AT (OR) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier Type State Issuer
297153 Medicaid OR -

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 Chadwick's NPI record?
Cross-check NPI 1811940778 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1811940778 active?
Yes, as of the latest NPPES snapshot, NPI 1811940778 is active (record last updated 2022-12-06).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-06.