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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

L. William D. Nowierski, M.D. PA

Medical Specialty Clinic/Center in Boise, ID · enumerated 2007 · authorized official L. William Nowierski, Owner/Physician.

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

National Provider Identifier

1710166004

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Registry record

Entity type Organization (Type 2)
Legal business name L. William D. Nowierski, M.D. PA
Practice address 100 Warm Springs Ave, Ste. A, Boise, ID, 83712
Phone (208) 343-5910
Fax (208) 384-8562
Enumeration date Nov 2, 2007
Last updated in NPPES Nov 2, 2007

Taxonomy & classification

261QM2500X Medical Specialty Clinic/Center Ambulatory Health Care Facilities · License M4341 (ID) Primary

Authorized official

Name L. William Nowierski
Title Owner/Physician
Phone (208) 343-5910

Other identifiers

Identifier Type State Issuer
4341-4 Other ID BLUE CROSS OF IDAHO

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.

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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 L. William D. Nowierski, M.D. PA?
L. William D. Nowierski, M.D. PA is registered in NPPES as a Medical Specialty Clinic/Center (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-02.