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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. MARIA SINIS CONTOS D.M.D.
NPI 1992014716
Dentist - General Practice in Chicago, IL

Active since September 28, 2010
6428 N CALIFORNIA AVE, CHICAGO, IL 60645(773) 973-0531(773) 262-9850 Get Directions Write a Review

NPPES record last updated: August 28, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

About Dr. Maria Sinis Contos D.m.d. NPPES

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

DR. MARIA SINIS CONTOS D.M.D. (NPI 1992014716) is an individual general practice provider in Chicago, Illinois, licensed in Illinois (019028502) and active in the NPI registry since September 2010.

NPPES Registry Identity

NPI1992014716
Entity TypeIndividualFemale
Primary Taxonomy1223G0001X
Provider Legal NameDR. MARIA SINIS CONTOSCredential: D.M.D.
Location Address6428 N CALIFORNIA AVEChicago, IL 60645-5209
Mailing Address6428 N California AveChicago, IL 60645-5209 · (773) 973-0531 · Fax (773) 262-9850
Phone(773) 973-0531
Fax(773) 262-9850
Sole ProprietorNo
Enumeration DateSeptember 28, 2010
Last NPPES UpdateAugust 28, 2026
NPPES CertifiedAugust 28, 2026
✔ NPI 1992014716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in IL · 019028502
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
Also ListedDentistTaxonomy 122300000X · License S520540826110 (FL), 019028502 (IL)
6428 N CALIFORNIA AVE, Chicago, IL 60645
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Other Names 1

Former Name (1)Dr. Maria Sinis Dmd

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and more.Insurance ›

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PREFERRED DENTISTRY ASSOCIATES, LLC
Dentist (General Practice)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 942-7348
POSITIVELY FOCUSED, LLC
Clinical Neuropsychologist
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 710-3354
DR. PETER A. CONTOS D.D.S.
Dentist (General Practice)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 973-0531
DR. ARISTIDES P CONTOS DDS
Dentist (General Practice)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 973-0531
CONTOS SMILE CENTER, LTD.
Dentist (General Practice)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 973-0531
MARIA SINIS DMD LTD
Dentist (General Practice)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 973-0531
NICOLE J HARTMANN RDH
Dental Hygienist
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (847) 804-9429
WISCONSIN MOBILE DENTAL CARE LLC
Clinic/Center (Dental)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (847) 804-9429

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 Maria Contos's NPI number?

The NPI number for Maria Contos is 1992014716. It was assigned to this individual provider in the NPPES registry on September 28, 2010. The provider is also known as Dr. Maria Sinis Dmd.

Where is Maria Contos located?

Maria Contos practices at 6428 N California Ave, Chicago, IL 60645. The listed phone number is (773) 973-0531.

What is Maria Contos's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

What insurance does Maria Contos accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Humana list Maria Contos 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 Maria Contos was last updated on August 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.