Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Emmeline Siebert

Optometrist in Centennial, CO · enumerated 2017.

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

National Provider Identifier

1720514979

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Registry record

Entity type Individual (Type 1)

Name Emmeline Siebert

Sex Female

Practice address 5555 E Arapahoe Rd, Centennial, CO, 80122

Phone (303) 338-3800

Enumeration date May 10, 2017

Last updated in NPPES Jan 13, 2025

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 5301 (MA) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License OPT.0003990 (CO) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1720514979 active?

Yes, as of the latest NPPES snapshot, NPI 1720514979 is active (record last updated 2025-01-13).

How do I verify Emmeline Siebert's NPI record?

Cross-check NPI 1720514979 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-13.