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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM P WEST MD
NPI 1285601153
Emergency Medicine in Janesville, WI

Active since March 01, 2006
4121 W NORTHWOOD CT, JANESVILLE, WI 53545(608) 757-1823 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William P West Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM P WEST MD (NPI 1285601153) is an individual emergency medicine provider in Janesville, Wisconsin, licensed in Wisconsin (22837) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1285601153
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameWILLIAM P WESTCredential: MD
Location Address4121 W NORTHWOOD CTJanesville, WI 53545-8335
Mailing Address4121 W Northwood CtJanesville, WI 53545-8335 · (608) 757-1823
Phone(608) 757-1823
Sole ProprietorNo
Enumeration DateMarch 1, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1285601153 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in WI · 22837
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
4121 W NORTHWOOD CT, Janesville, WI 53545
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William West's NPI number?

The NPI number for William West is 1285601153. It was assigned to this individual provider in the NPPES registry on March 1, 2006.

Where is William West located?

William West practices at 4121 W Northwood Ct, Janesville, WI 53545. The listed phone number is (608) 757-1823.

What is William West's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

When was this NPI record last updated?

The NPPES record for William West was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.