Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Chelsie Gritzmacher, D.M.D.

Pediatric Dentistry in Littleton, CO · enumerated 2010.

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

National Provider Identifier

1558679175

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Registry record

Entity type Individual (Type 1)

Name Chelsie Gritzmacher

Credential D.M.D.

Sex Female

Practice address 404 E Mineral Ave Ste A, Littleton, CO, 80122

Phone (303) 798-4400

Enumeration date Sep 16, 2010

Last updated in NPPES Nov 22, 2022

Taxonomy & licenses

122300000X Dentist Dental Providers · License DE 60169108 (WA) Secondary

1223P0221X Pediatric Dentistry Dental Providers · License DEN00204177 (CO) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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 1558679175 active?

Yes, as of the latest NPPES snapshot, NPI 1558679175 is active (record last updated 2022-11-22).

How do I verify Chelsie Gritzmacher's NPI record?

Cross-check NPI 1558679175 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-22.