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Pattan and Engelmann DDS Ltd

Dentist in East Alton, IL · enumerated 2012 · authorized official Louis Pattan, President.

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

National Provider Identifier

1053686691

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Registry record

Entity type Organization (Type 2)
Legal business name Pattan and Engelmann DDS Ltd
Practice address 209 School St, East Alton, IL, 62024
Phone (618) 254-0185
Enumeration date Mar 15, 2012
Last updated in NPPES Mar 15, 2012

Taxonomy & classification

122300000X Dentist Dental Providers Primary

Authorized official

Name Louis Pattan
Title President
Phone (618) 254-0185

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

What type of organization is Pattan and Engelmann DDS Ltd?
Pattan and Engelmann DDS Ltd is registered in NPPES as a Dentist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-15.