Michael T Tierney DDS.Ltd

Michael T Tierney DDS.Ltd is a healthcare organization registered as Clinic/Center in Oswego, IL, holding Type 2 (organization) NPI 1043620131 since 2014. The authorized official on file is Michael Tierney, Dentist.

✓ Active NPI ✓ Valid NPI checksum

NPI	1043620131
Entity type	Organization (Type 2)
Legal business name	Michael T Tierney DDS.Ltd
Practice address	4781 STATE ROUTE 71, Oswego, IL, 60543
Phone	6305545157
Fax	6305545487
Enumeration date	2014-04-29
Last updated in NPPES	2014-04-29

Authorized official

Name	Michael Tierney
Title	Dentist
Phone	6305545157

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
261Q00000X	Clinic/Center	Primary	01914998	IL

Copy-ready billing details

Provider: Michael T Tierney DDS.Ltd
NPI: 1043620131
Taxonomy: 261Q00000X (Clinic/Center)
Address: 4781 STATE ROUTE 71, Oswego, IL, 60543

Verify this record

Cross-check NPI 1043620131 against the authoritative CMS record: view Michael T Tierney DDS.Ltd on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-04-29. Verify at npiregistry.cms.hhs.gov.

Where is Michael T Tierney DDS.Ltd located?

The practice location on file with NPPES is in Oswego, IL.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-04-29.