Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. George A Mandelaris, DDS

Periodontics in Oakbrook Terrace, IL · enumerated 2007.

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

National Provider Identifier

1356568513

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Registry record

Entity type Individual (Type 1)

Name Dr. George A Mandelaris

Credential DDS

Sex Male

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

Phone (630) 627-3930

Fax (630) 627-2148

Enumeration date Apr 19, 2007

Last updated in NPPES Mar 24, 2011

Taxonomy & licenses

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

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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

Where does George Mandelaris practice?

The practice location on file with NPPES is in Oakbrook Terrace, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for George Mandelaris?

The National Provider Identifier (NPI) for George Mandelaris is 1356568513, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-24.