Stefanie Lynn Longwith

Stefanie Lynn Longwith is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Everett, WA, registered in the NPPES registry with NPI 1629721477 since 2022. Practices at Pioneer Human Services (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI	1629721477
Entity type	Individual (Type 1)
Name	Stefanie Lynn Longwith
Sex	Female
Practice address	902 PINE ST, Everett, WA, 98201
Phone	4256102075
Enumeration date	2022-02-01
Last updated in NPPES	2022-02-01

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
101YA0400X	Addiction (Substance Use Disorder) Counselor	Primary	—	—

Copy-ready billing details

Provider: Stefanie Longwith
NPI: 1629721477
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: 902 PINE ST, Everett, WA, 98201

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1811248388	Erickia Coger	Individual	Mental Health Counselor	Everett, WA
1073987400	Debby Leffler	Individual	Family Nurse Practitioner	Everett, WA
1194231704	Barbara Sharpe	Individual	Counselor	Everett, WA
1497324834	Pioneer Human Services	Organization	Substance Abuse Rehabilitation Facility	Everett, WA
1164198255	Nick Neef	Individual	Addiction (Substance Use Disorder) Counselor	Everett, WA
1245906031	Erica Lasenby	Individual	Addiction (Substance Use Disorder) Counselor	Everett, WA
1205593589	Raul Negron	Individual	Addiction (Substance Use Disorder) Counselor	Everett, WA
1891449427	Rebecca Armendarez	Individual	Addiction (Substance Use Disorder) Counselor	Everett, WA

Verify this record

Cross-check NPI 1629721477 against the authoritative CMS record: view Stefanie Lynn Longwith 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 Stefanie Longwith practice?

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

What is the NPI number for Stefanie Longwith?

The National Provider Identifier (NPI) for Stefanie Longwith is 1629721477, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-02-01.