William Castle, L.D.

William Castle is a Denturist provider (Denturist) practicing in Eugene, OR, registered in the NPPES registry with NPI 1154723831 since 2014.

✓ Active NPI ✓ Valid NPI checksum

NPI	1154723831
Entity type	Individual (Type 1)
Name	William Castle
Credential	L.D.
Sex	Male
Practice address	2911 W 11TH AVE, SUITE B., Eugene, OR, 97402
Phone	5416870088
Enumeration date	2014-09-24
Last updated in NPPES	2014-09-24

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
122400000X	Denturist	Primary	DT-DO-10163614	OR

Copy-ready billing details

Provider: William Castle, L.D.
NPI: 1154723831
Taxonomy: 122400000X (Denturist)
Address: 2911 W 11TH AVE, SUITE B., Eugene, OR, 97402

Verify this record

Cross-check NPI 1154723831 against the authoritative CMS record: view William Castle 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

Where does William Castle practice?

The practice location on file with NPPES is in Eugene, OR. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Castle?

The National Provider Identifier (NPI) for William Castle is 1154723831, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-09-24.