Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Holly Elizabeth Sossi

Clinical Social Worker in Sequim, WA · enumerated 2018.

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

National Provider Identifier

1144724634

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Registry record

Entity type Individual (Type 1)

Name Holly Elizabeth Sossi

Sex Female

Practice address 435 W Bell St Ste B, Sequim, WA, 98382

Phone (360) 207-4345

Enumeration date Mar 20, 2018

Last updated in NPPES Jul 25, 2023

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 81470 (CA) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LW61415485 (WA) Primary

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.

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Frequently asked questions

How do I verify Holly Sossi's NPI record?

Cross-check NPI 1144724634 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1144724634 active?

Yes, as of the latest NPPES snapshot, NPI 1144724634 is active (record last updated 2023-07-25).

Other providers at this practice address

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Joshua Talbert Mental Health Counselor · Sequim, WA NPI 1942500624 Michelle Kusterman Clinical Social Worker · Sequim, WA NPI 1518497411 Annette Berlin Counseling Psychologist · Sequim, WA NPI 1700492998 Klarissa Fellows Mental Health Counselor · Sequim, WA NPI 1710585005 Sheryl Kalbach Clinical Social Worker · Sequim, WA NPI 1811657786 Elizabeth Silva Social Worker · Sequim, WA NPI 1467161323 Monique Chhabra Marriage & Family Therapist · Sequim, WA NPI 1447958996 Anita Trevino Student in an Organized Health Care Education/Training Program · Sequim, WA NPI 1619653987

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-25.