Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Douglas Mark Whalen, LICSW

Clinical Social Worker in Sammamish, WA · enumerated 2021.

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

National Provider Identifier

1114593886

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Registry record

Entity type Individual (Type 1)

Name Mr. Douglas Mark Whalen

Credential LICSW

Sex Male

Practice address 22620 Se 4th St Ste 130, Sammamish, WA, 98074

Phone (855) 402-1364

Fax (425) 974-7861

Enumeration date Jun 2, 2021

Last updated in NPPES Jul 8, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LW61657034 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
2178499	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

How do I verify Douglas Whalen's NPI record?

Cross-check NPI 1114593886 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1114593886 active?

Yes, as of the latest NPPES snapshot, NPI 1114593886 is active (record last updated 2025-07-08).

Other providers at this practice address

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Lindsey Hurt Psychiatric/Mental Health Nurse Practitioner · Sammamish, WA NPI 1457581720 Benjamin Barnes Psychologist · Sammamish, WA NPI 1972085892 Stephani Wolfe Clinical Social Worker · Sammamish, WA NPI 1497415566 Alaba Kehinde Psychiatric/Mental Health Nurse Practitioner · Sammamish, WA NPI 1437809647

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-08.