NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Advancement Northwest, LLC

Community/Behavioral Health Agency in Bellingham, WA · enumerated 2020 · authorized official Rachel Silves, Co-Owner.

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

National Provider Identifier

1558901090

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Advancement Northwest, LLC
Practice address 410 W Bakerview Rd Suite 110, Space 107, Bellingham, WA, 98226
Phone (360) 685-4241
Fax (888) 475-7160
Enumeration date Jan 13, 2020
Last updated in NPPES Jan 13, 2020

Taxonomy & classification

251S00000X Community/Behavioral Health Agency Agencies Primary

Authorized official

Name Rachel Silves
Title Co-Owner
Phone (360) 685-4241

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 the NPI number for Advancement Northwest, LLC?
The NPI for Advancement Northwest, LLC is 1558901090, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Advancement Northwest, LLC?
NPPES lists Rachel Silves (Co-Owner) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-13.