NPPES file of Aug 9, 2026

Justin Blake Clark, LICSW

Clinical Social Worker · Seattle, WA

Justin Blake Clark, LICSW is a clinical social worker with a practice address in Seattle, Washington, and NPI 1619458999, issued on Aug 24, 2018. Check the license (Washington 61139465, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619458999
Name
Justin Blake Clark
Credential
LICSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
61139465 WA
Self-reported in NPPES; status is on the state search
Practice location
1660 S. Columbian Way, Seattle, WA 98108
Phone
(206) 764-2007
Enumerated
Aug 24, 2018
Record last updated
Aug 5, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1660 S. Columbian Way

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. John Baer, PH.D.Psychologist1144330978
  2. Carl Bergsagel, MSRadiological Physics Physician1225121973
  3. Annie Cheng, M.D.Physical Medicine & Rehabilitation Physician1821183575
  4. Suzanne Craft, PHDClinical Neuropsychologist1013001577
  5. Cathy Dahle, LICSW, ACSWClinical Social Worker1023101771
  6. Vincent Fan, M.D.Pulmonary Disease Physician1174619886

Verify Justin Blake Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license 61139465    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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1,704 clinical social worker records list a practice address in Seattle

They are 1,704 of the 41,956 NPPES records with a practice address in Seattle, and 6,382 clinical social worker records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,704 in Seattle → All 6,382 in Washington → Every provider in Seattle →

Other clinical social worker records in Washington

  1. Anita Abba Richard, LCMSWPort Townsend, WA1376613364
  2. Elizabeth Abbott, MSW, LICSWBellingham, WA1043701303
  3. Medina AbdiSeattle, WA1316422520
  4. Amal AbdulrahmanRenton, WA1104406008
  5. Elizabeth AbebefeSeattle, WA1376926899
  6. Lorena Abenojar, MSW, LICSWSeattle, WA1457018517
  7. Jenna Abrams, LCSW, LICSWDupont, WA1710595301
  8. Anna AbramyanSpokane, WA1346766714
  9. Eduardo Abuyog, L.I.C.S.W.Tukwila, WA1912078361
  10. Isis Acevedo GonzalezYakima, WA1184216392

Common questions

What is Justin Blake Clark, LICSW's NPI number?

Justin Blake Clark, LICSW's National Provider Identifier (NPI) is 1619458999, issued on Aug 24, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Justin Blake Clark, LICSW located?

The NPPES record lists a practice address at 1660 S. Columbian Way, Seattle, WA, 98108. Phone: (206) 764-2007. Providers update this record themselves, so call before visiting.

How can I verify Justin Blake Clark, LICSW's license?

NPPES lists Washington license number 61139465, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.