Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andrew Kotlarz, DDS

Dentist in Ann Arbor, MI · enumerated 2022.

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

National Provider Identifier

1558097709

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Registry record

Entity type Individual (Type 1)

Name Andrew Kotlarz

Credential DDS

Sex Male

Practice address 1011 N University Ave, Ann Arbor, MI, 48109

Phone (734) 763-6933

Enumeration date Jul 29, 2022

Last updated in NPPES Jun 28, 2026

Taxonomy & licenses

122300000X Dentist Dental Providers · License DENT.DE.70040063 (WA) Secondary

122300000X Dentist Dental Providers · License 2901602893 (MI) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 1558097709 active?

Yes, as of the latest NPPES snapshot, NPI 1558097709 is active (record last updated 2026-06-28).

How do I verify Andrew Kotlarz's NPI record?

Cross-check NPI 1558097709 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 2026-06-28.