Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Erndt Yonchak & Agarwala DDS Ms Inc

Endodontics in Middletown, OH · enumerated 2006 · authorized official Thomas Yonchak, Vice President.

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

National Provider Identifier

1740396530

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Registry record

Entity type Organization (Type 2)

Legal business name Erndt Yonchak & Agarwala DDS Ms Inc

Other name <Unavail>

Practice address 150 N Breiel Blvd, Middletown, OH, 45042

Phone (513) 424-5630

Fax (513) 424-0230

Enumeration date Aug 22, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223E0200X Endodontics Dental Providers · License OHH15690 (OH) Primary

1223E0200X Endodontics Dental Providers · License OH18306 (OH) Secondary

1223E0200X Endodontics Dental Providers · License OH21698 (OH) Secondary

Authorized official

Name Thomas Yonchak

Title Vice President

Phone (513) 424-5630

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

Where is Erndt Yonchak & Agarwala DDS Ms Inc located?

The practice location on file with NPPES is in Middletown, OH.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

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