Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Elizabeth Allyn Appel, O.D.

Optometrist in Sycamore, IL · enumerated 2007.

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

National Provider Identifier

1427238757

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Registry record

Entity type Individual (Type 1)

Name Elizabeth Allyn Appel

Credential O.D.

Sex Female

Practice address 2240 Gateway Dr, Sycamore, IL, 60178

Phone (815) 756-8571

Fax (815) 756-5603

Enumeration date Nov 3, 2007

Last updated in NPPES Feb 6, 2014

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 046.010180 (IL) 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 1427238757 active?

Yes, as of the latest NPPES snapshot, NPI 1427238757 is active (record last updated 2014-02-06).

How do I verify Elizabeth Appel's NPI record?

Cross-check NPI 1427238757 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Kishwaukee Community Health Services Center Ambulatory Surgical Clinic/Center · Sycamore, IL NPI 1588623318 Thomas Tilton Ophthalmology Physician · Sycamore, IL NPI 1306805148 Kathy Anderson Ophthalmology Physician · Sycamore, IL NPI 1124088455 Hr Optical LLC Optometrist · Sycamore, IL NPI 1427196856 Jason Brand Optometrist · Sycamore, IL NPI 1598917965 Matthew Johnson Ophthalmology Physician · Sycamore, IL NPI 1912133638 Dekalb Optical Shop LLC Optometrist · Sycamore, IL NPI 1598109456

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-06.