Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Denise M Serfas, MSW, LICSW

Clinical Social Worker in Edmonds, WA · enumerated 2016.

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

National Provider Identifier

1841644242

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Denise M Serfas

Credential MSW, LICSW

Sex Female

Practice address 23320 Highway 99, Edmonds, WA, 98026

Phone (425) 640-5500

Fax (425) 640-5520

Enumeration date Apr 21, 2016

Last updated in NPPES Apr 5, 2019

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LW60816128 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
LW60816128	Other	WA	LICENSE

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 specialty is Denise Serfas?

Denise Serfas is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-05.