NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Evergreen Treatment Services Unit 4

Methadone Clinic in Seattle, WA · enumerated 2007 · authorized official Donavan Lam, Cfo.

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

National Provider Identifier

1558416685

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Evergreen Treatment Services Unit 4
Parent organization Evergreen Treatment Services
Practice address 1700 Airport Way S, Seattle, WA, 98134
Phone (206) 223-3644
Fax (202) 223-1482
Enumeration date Jan 25, 2007
Last updated in NPPES Jul 9, 2026

Taxonomy & classification

261QM2800X Methadone Clinic Ambulatory Health Care Facilities · License 17 0163 00 (WA) Primary

Authorized official

Name Donavan Lam
Title Cfo
Phone (206) 690-1767

Other identifiers

Identifier Type State Issuer
8008203 Medicaid WA -
1995414 Medicaid WA -

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 type of organization is Evergreen Treatment Services Unit 4?
Evergreen Treatment Services Unit 4 is registered in NPPES as a Methadone Clinic (its primary provider taxonomy).
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.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-09.