Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Associated Dentists of Northwest Indiana PC

Endodontics in Merrillville, IN · enumerated 2007 · authorized official Matilda Perez, Office Manager President.

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

National Provider Identifier

1588703250

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Registry record

Entity type Organization (Type 2)

Legal business name Associated Dentists of Northwest Indiana PC

Practice address 500 West Lincoln Hwy, Suite N, Merrillville, IN, 46410

Phone (219) 769-6444

Fax (219) 755-4790

Enumeration date Feb 6, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223E0200X Endodontics Dental Providers · License 12008668A (IN) Primary

1223E0200X Endodontics Dental Providers · License 12009309A (IN) Secondary

1223E0200X Endodontics Dental Providers Secondary

Authorized official

Name Matilda Perez

Title Office Manager President

Phone (219) 769-6444

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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Associated Dentists of Northwest Indiana PC?

Associated Dentists of Northwest Indiana PC is registered in NPPES as a Endodontics (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.