Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Pioneer Human Services

Q: What type of organization is Pioneer Human Services?

Pioneer Human Services is registered in NPPES as a Mental Health Clinic/Center (Including Community Mental Health Center) (its primary provider taxonomy).

Mental Health Clinic/Center (Including Community Mental Health Center) in Seattle, WA · enumerated 2012 · authorized official Tracey Groscost, Cfo.

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

National Provider Identifier

1194069427

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Registry record

Entity type Organization (Type 2)

Legal business name Pioneer Human Services

Practice address 1100 Virginia St, Ste 210, Seattle, WA, 98101

Phone (206) 470-3856

Enumeration date Nov 27, 2012

Last updated in NPPES Nov 27, 2012

Taxonomy & classification

251S00000X Community/Behavioral Health Agency Agencies · License 160 (WA) Secondary

261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities · License 160 (WA) Primary

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities · License 160 (WA) Secondary

Authorized official

Name Tracey Groscost

Title Cfo

Phone (206) 766-7015

Other identifiers

Identifier	Type	State	Issuer
1995083	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 Pioneer Human Services?

Pioneer Human Services is registered in NPPES as a Mental Health Clinic/Center (Including Community Mental Health Center) (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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-27.