DR. WILLIAM PROSNIEWSKI DMD
NPI 1205405685
Dentist - General Practice in Bartlett, IL

Active since June 21, 2021
116 W BARTLETT AVE, BARTLETT, IL 60103(630) 837-2779 Get Directions Write a Review

NPPES record last updated: June 21, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. William Prosniewski Dmd NPPES

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

DR. WILLIAM PROSNIEWSKI DMD (NPI 1205405685) is an individual general practice provider in Bartlett, Illinois, licensed in Illinois (019033158) and active in the NPI registry since June 2021.

NPPES Registry Identity

NPI1205405685
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. WILLIAM PROSNIEWSKICredential: DMD
Location Address116 W BARTLETT AVEBartlett, IL 60103-4282
Mailing Address989 La Costa AveBartlett, IL 60103-6609 · (630) 432-1744
Sole ProprietorYes
Enumeration DateJune 21, 2021
NPPES CertifiedJune 21, 2021
NPI 1205405685 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License Licensed in IL · 019033158
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.

116 W BARTLETT AVE, Bartlett, IL 60103

Accepted Insurance

Other Providers at the Same Location NPPES

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

Dentist (General Practice)
116 W BARTLETT AVE
BARTLETT, IL 60103

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 William Prosniewski's NPI number?

The NPI number for William Prosniewski is 1205405685. It was assigned to this individual provider in the NPPES registry on June 21, 2021.

Where is William Prosniewski located?

William Prosniewski practices at 116 W Bartlett Ave, Bartlett, IL 60103. The listed phone number is (630) 837-2779.

What is William Prosniewski's specialty?

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

What insurance does William Prosniewski accept?

Health plans from BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and HRI Dental & Vision and 4 other insurers list William Prosniewski 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 William Prosniewski was last updated on June 21, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.