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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. AMER ATASSI D.M.D
NPI 1689059297
Dentist - Periodontics in Darien, IL

Active since July 24, 2015
8342 LEMONT RD, DARIEN, IL 60561(630) 581-0000(331) 200-5020 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 28, 2026, Jan 13, 2017 (2 updates tracked since 2017).

About Dr. Amer Atassi D.m.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. AMER ATASSI D.M.D (NPI 1689059297) is an individual periodontics provider in Darien, Illinois, licensed in Illinois (019030111) and active in the NPI registry since July 2015.

NPPES Registry Identity

NPI1689059297
Entity TypeIndividualMale
Primary Taxonomy1223P0300X
Provider Legal NameDR. AMER ATASSICredential: D.M.D
Location Address8342 LEMONT RDDarien, IL 60561-1510
Mailing Address8342 Lemont RdDarien, IL 60561-1510 · (630) 581-0000 · Fax (630) 200-5020
Phone(630) 581-0000
Fax(331) 200-5020
Sole ProprietorYes
Enumeration DateJuly 24, 2015
Last NPPES UpdateSeptember 28, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2026
✔ NPI 1689059297 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · PeriodonticsDental Providers
Taxonomy Code1223P0300X
License✔ Licensed in IL · 019030111
Definition
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.
8342 LEMONT RD, Darien, IL 60561
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Other Names 1

Professional Name (2)Amer Atassi D.m.d.

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Amer Atassi's NPI number?

The NPI number for Amer Atassi is 1689059297. It was assigned to this individual provider in the NPPES registry on July 24, 2015. The provider is also known as Amer Atassi D.M.D..

Where is Amer Atassi located?

Amer Atassi practices at 8342 Lemont Rd, Darien, IL 60561. The listed phone number is (630) 581-0000.

What is Amer Atassi's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

What insurance does Amer Atassi accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Anthem Blue Cross and Blue Shield and BEST Life and 10 other insurers list Amer Atassi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Amer Atassi was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.