Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Timothy J Lenaghan DDS

Q: What type of organization is Timothy J Lenaghan DDS?

Timothy J Lenaghan DDS is registered in NPPES as a Dentist (its primary provider taxonomy).

Dentist in Oakland, IA · enumerated 2005 · authorized official Timothy Lenaghan, Owner.

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

National Provider Identifier

1558343541

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Registry record

Entity type Organization (Type 2)

Legal business name Timothy J Lenaghan DDS

Practice address 320 Oakland Ave, Oakland, IA, 51560

Phone (712) 482-3316

Enumeration date Nov 16, 2005

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

122300000X Dentist Dental Providers · License 06448 (IA) Primary

Authorized official

Name Timothy Lenaghan

Title Owner

Phone (712) 482-3316

Other identifiers

Identifier	Type	State	Issuer
0161687	Medicaid	IA	-

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 type of organization is Timothy J Lenaghan DDS?

Timothy J Lenaghan DDS is registered in NPPES as a Dentist (its primary provider taxonomy).

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.

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