What is John A. Guerrieri D.D.S. Ltd's NPI number?

John A. Guerrieri D.D.S. Ltd's National Provider Identifier (NPI) is 1033276654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What type of organization is John A. Guerrieri D.D.S. Ltd?

John A. Guerrieri D.D.S. Ltd is classified in the NPPES registry as General Practice Dentistry (Dental Providers).

Where is John A. Guerrieri D.D.S. Ltd located?

John A. Guerrieri D.D.S. Ltd's practice location on file with NPPES is 421 W Irving Park Rd, Itasca, IL 60143-2039.

What is John A. Guerrieri D.D.S. Ltd's phone number?

The practice phone number listed in the NPPES registry for John A. Guerrieri D.D.S. Ltd is (847) 250-5394.

Who is the authorized official for John A. Guerrieri D.D.S. Ltd?

The authorized official listed on John A. Guerrieri D.D.S. Ltd's NPPES record is John Guerrieri, President Dentist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.

Is John A. Guerrieri D.D.S. Ltd's NPI active?

Yes — John A. Guerrieri D.D.S. Ltd's NPI (1033276654) is active in the NPPES registry as of the last update on 2016-06-24.

OrganizationActive

John A. Guerrieri D.D.S. Ltd

NPI 1033276654 · General Practice Dentistry · Itasca, IL

John A. Guerrieri D.D.S. Ltd is a General Practice Dentistry organization in Itasca, IL (NPI 1033276654).

Provider details

NPI number: 1033276654
Entity type: Organization
Primary specialty: General Practice DentistryDental Providers
Organization subpart: No
Authorized official: John Guerrieri, President Dentist(847) 250-5394
License: 19-021812 (IL)

Practice location

421 W Irving Park Rd

Itasca, IL 60143-2039

Phone: (847) 250-5394

Fax: (847) 250-5393

Street-level locationGet directions

More IL providers

Mailing address

421 W Irving Park Rd

Itasca, IL 60143-2039

Specialties & taxonomies

General Practice DentistryPrimary1223G0001XLicense 19-021812 (IL)
Dental Providers

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2007-01-02
Last updated: 2016-06-24

Frequently asked questions

What is John A. Guerrieri D.D.S. Ltd's NPI number?: John A. Guerrieri D.D.S. Ltd's National Provider Identifier (NPI) is 1033276654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What type of organization is John A. Guerrieri D.D.S. Ltd?: John A. Guerrieri D.D.S. Ltd is classified in the NPPES registry as General Practice Dentistry (Dental Providers).
Where is John A. Guerrieri D.D.S. Ltd located?: John A. Guerrieri D.D.S. Ltd's practice location on file with NPPES is 421 W Irving Park Rd, Itasca, IL 60143-2039.
What is John A. Guerrieri D.D.S. Ltd's phone number?: The practice phone number listed in the NPPES registry for John A. Guerrieri D.D.S. Ltd is (847) 250-5394.
Who is the authorized official for John A. Guerrieri D.D.S. Ltd?: The authorized official listed on John A. Guerrieri D.D.S. Ltd's NPPES record is John Guerrieri, President Dentist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
Is John A. Guerrieri D.D.S. Ltd's NPI active?: Yes — John A. Guerrieri D.D.S. Ltd's NPI (1033276654) is active in the NPPES registry as of the last update on 2016-06-24.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions