Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Edward J Michalowski, DMD PC

General Practice Dentistry in Holden, MA · enumerated 2006 · practices at Edward J Michalowski Dmd PC.

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

National Provider Identifier

1104929595

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Registry record

Entity type Individual (Type 1)

Name Dr. Edward J Michalowski

Credential DMD PC

Sex Male

Practice address 1072 Main Street, Holden, MA, 01520

Phone (508) 829-3698

Enumeration date Sep 7, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 11838 (MA) 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 1104929595 active?

Yes, as of the latest NPPES snapshot, NPI 1104929595 is active (record last updated 2007-07-08).

How do I verify Edward Michalowski's NPI record?

Cross-check NPI 1104929595 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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Edward J Michalowski Dmd PC General Practice Dentistry · Holden, MA NPI 1538320122

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.