Pine Tree Psychotherapy Pllc

Pine Tree Psychotherapy Pllc is a healthcare organization registered as Mental Health Counselor in Lake Stevens, WA, holding Type 2 (organization) NPI 1861333239 since 2026. The authorized official on file is Agnieszka Liniewiecka-Dziwok, Mental Health Counselor.

✓ Active NPI ✓ Valid NPI checksum

NPI	1861333239
Entity type	Organization (Type 2)
Legal business name	Pine Tree Psychotherapy Pllc
Practice address	8430 28TH ST NE, Lake Stevens, WA, 98258
Phone	4253075599
Enumeration date	2026-04-01
Last updated in NPPES	2026-04-01

Authorized official

Name	Agnieszka Liniewiecka-Dziwok
Title	Mental Health Counselor
Phone	8474544219

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
101YM0800X	Mental Health Counselor	Primary	—	—

Copy-ready billing details

Provider: Pine Tree Psychotherapy Pllc
NPI: 1861333239
Taxonomy: 101YM0800X (Mental Health Counselor)
Address: 8430 28TH ST NE, Lake Stevens, WA, 98258

Verify this record

Cross-check NPI 1861333239 against the authoritative CMS record: view Pine Tree Psychotherapy Pllc 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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-04-01. Verify at npiregistry.cms.hhs.gov.

Where is Pine Tree Psychotherapy Pllc located?

The practice location on file with NPPES is in Lake Stevens, WA.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-04-01.