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Drs. Mackler, Siurek and Associates

Periodontics in West Springfield, MA · enumerated 2007 · authorized official Frederic Mackler, President.

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

National Provider Identifier

1124243555

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Registry record

Entity type Organization (Type 2)
Legal business name Drs. Mackler, Siurek and Associates
Practice address 46 Daggett Dr, Suite 2c, West Springfield, MA, 01089
Phone (413) 747-9224
Fax (413) 747-0117
Enumeration date Apr 13, 2007
Last updated in NPPES Sep 11, 2025

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License 11580 (MA) Secondary
1223P0300X Periodontics Dental Providers · License 11580 (MA) Primary

Authorized official

Name Frederic Mackler
Title President
Phone (413) 747-9224

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.

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Frequently asked questions

Who is the authorized official for Drs. Mackler, Siurek and Associates?
NPPES lists Frederic Mackler (President) as the authorized official for this organization.
What is the NPI number for Drs. Mackler, Siurek and Associates?
The NPI for Drs. Mackler, Siurek and Associates is 1124243555, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.