Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew Ryan Haarmann, D.M.D.

Dentist in Columbia, IL · enumerated 2014.

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

National Provider Identifier

1366864589

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew Ryan Haarmann

Credential D.M.D.

Sex Male

Practice address 240 Admiral Trust Rd., Columbia, IL, 62236

Phone (618) 400-0550

Fax (618) 400-0824

Enumeration date Jan 7, 2014

Last updated in NPPES Jan 9, 2022

Taxonomy & licenses

122300000X Dentist Dental Providers · License 019.029662 (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

Is NPI 1366864589 active?

Yes, as of the latest NPPES snapshot, NPI 1366864589 is active (record last updated 2022-01-09).

How do I verify Matthew Haarmann's NPI record?

Cross-check NPI 1366864589 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 2022-01-09.