Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Preferred Anesthesia LLC

Q: What is the NPI number for Preferred Anesthesia LLC?

The NPI for Preferred Anesthesia LLC is 1740126465, a Type 2 (organization) record in the CMS NPPES registry.

Anesthesiology Physician in Olympia, WA · enumerated 2026 · authorized official Darrel Larson, Owner.

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

National Provider Identifier

1740126465

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Registry record

Entity type Organization (Type 2)

Legal business name Preferred Anesthesia LLC

Practice address 4515 Trenton Loop Se, Olympia, WA, 98501

Phone (208) 602-1957

Enumeration date Apr 25, 2026

Last updated in NPPES Apr 25, 2026

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Darrel Larson

Title Owner

Phone (208) 514-7707

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

Who is the authorized official for Preferred Anesthesia LLC?

NPPES lists Darrel Larson (Owner) as the authorized official for this organization.

What is the NPI number for Preferred Anesthesia LLC?

The NPI for Preferred Anesthesia LLC is 1740126465, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-25.