Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher R. Isabelle, DMD

Dentist in Chicago, IL · enumerated 2015.

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

National Provider Identifier

1649654898

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher R. Isabelle

Credential DMD

Sex Male

Practice address 1605 S Michigan Ave, Suite B, Chicago, IL, 60616

Phone (312) 624-8913

Enumeration date Jul 17, 2015

Last updated in NPPES Jul 17, 2015

Taxonomy & licenses

122300000X Dentist Dental Providers · License 019030292 (IL) 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

How do I verify Christopher Isabelle's NPI record?

Cross-check NPI 1649654898 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649654898 active?

Yes — as of the latest NPPES snapshot, NPI 1649654898 is active (record last updated 2015-07-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-17.