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Siu Dental Associates

General Practice Dentistry in Edwardsville, IL · enumerated 2021 · authorized official Elizabeth Phelps, Business Manager.

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

National Provider Identifier

1659957850

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Registry record

Entity type Organization (Type 2)
Legal business name Siu Dental Associates
Practice address 195 University Park Dr, Edwardsville, IL, 62025
Phone (618) 650-5781
Fax (618) 650-5790
Enumeration date Mar 19, 2021
Last updated in NPPES Sep 19, 2024

Taxonomy & classification

122300000X Dentist Dental Providers Secondary
1223G0001X General Practice Dentistry Dental Providers Primary
1223P0106X Oral and Maxillofacial Pathology Dentistry Dental Providers Secondary

Authorized official

Name Elizabeth Phelps
Title Business Manager
Phone (618) 474-7104

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

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.
What type of organization is Siu Dental Associates?
Siu Dental Associates is registered in NPPES as a General Practice Dentistry (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-19.