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John D. Kiernan Od

Eyewear Supplier in Sioux City, IA · enumerated 2008 · authorized official John Kiernan, Owner.

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

National Provider Identifier

1912176256

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Registry record

Entity type Organization (Type 2)
Legal business name John D. Kiernan Od
Practice address 1214 Pierce St, Sioux City, IA, 51105
Phone (712) 252-4406
Fax (712) 252-5296
Enumeration date Feb 20, 2008
Last updated in NPPES Apr 9, 2008

Taxonomy & classification

332H00000X Eyewear Supplier Suppliers · License 1687 (IA) Primary

Authorized official

Name John Kiernan
Title Owner
Phone (712) 252-4406

Other identifiers

Identifier Type State Issuer
0264600001 Other IA DME
17801 Other IA MEDICARE

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 John D. Kiernan Od?
John D. Kiernan Od is registered in NPPES as a Eyewear Supplier (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-09.