Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Periodontal Medicine and Surgical Specialists, LLC

Dental Clinic/Center in Oakbrook Terrace, IL · enumerated 2007 · authorized official George Mandelaris, Owner Periodontist.

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

National Provider Identifier

1811036718

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Periodontal Medicine and Surgical Specialists, LLC

Other name <Unavail>

Practice address 1s224 Summit Ave, Suite 205, Oakbrook Terrace, IL, 60181

Phone (630) 627-3930

Fax (630) 627-2148

Enumeration date Feb 6, 2007

Last updated in NPPES Dec 16, 2016

Taxonomy & classification

1223P0300X Periodontics Dental Providers · License 019024971 (IL) Secondary

1223P0300X Periodontics Dental Providers · License 019014972 (IL) Secondary

1223P0300X Periodontics Dental Providers · License 019030200 (IL) Secondary

261QD0000X Dental Clinic/Center Ambulatory Health Care Facilities · License 060-003629 (IL) Primary

Authorized official

Name George Mandelaris

Title Owner Periodontist

Phone (630) 627-3930

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 Periodontal Medicine and Surgical Specialists, LLC?

Periodontal Medicine and Surgical Specialists, LLC is registered in NPPES as a Dental Clinic/Center (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-16.