NPPES file of Aug 9, 2026

Katherine Lora Blackstone Allen, LICSW, MHP, CMHS

Clinical Social Worker · Longview, WA

Katherine Lora Blackstone Allen, LICSW, MHP, CMHS is a clinical social worker with a practice address in Longview, Washington, and NPI 1477785541, issued on Aug 21, 2009. Check the license (Washington LW60424218, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1477785541
Name
Katherine Lora Blackstone Allen
Credential
LICSW, MHP, CMHS
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LW60424218 WA
Self-reported in NPPES; status is on the state search
Practice location
910 16TH Ave Ste 120, Longview, WA 98632
Phone
(360) 200-5419
Enumerated
Aug 21, 2009
Record last updated
Sep 18, 2023
Fax
(360) 200-6736
Medicaid ID
2122309 WA
Medicare enrollment
Enrolled (PECOS I20200515001379); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 910 16TH Ave Ste 120

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

  1. Chayla Becker, AACPeer Specialist1366112682
  2. Cory Bragg, BA, AACCounselor1700661808
  3. Kathleen Derby-Ray, MS, LMHCAMental Health Counselor1932907805
  4. Latisha Filzen, R-AAC, CPSSTPeer Specialist1417880279
  5. Nicholas Fish, CPSSPeer Specialist1407619158
  6. Elena 'Elle' Hazlewood, SUDPTCounselor1982384624

Verify Katherine Lora Blackstone Allen 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 LW60424218
    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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Bills Medicare through one group practice

  1. Core HealthLongview, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

46 clinical social worker records list a practice address in Longview

They are 46 of the 1,933 NPPES records with a practice address in Longview, and 6,382 clinical social worker records in Washington.

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 Katherine Lora Blackstone Allen, LICSW, MHP, CMHS's NPI number?

Katherine Lora Blackstone Allen, LICSW, MHP, CMHS's National Provider Identifier (NPI) is 1477785541, issued on Aug 21, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Lora Blackstone Allen, LICSW, MHP, CMHS located?

The NPPES record lists a practice address at 910 16TH Ave Ste 120, Longview, WA, 98632. Phone: (360) 200-5419. Providers update this record themselves, so call before visiting.

How can I verify Katherine Lora Blackstone Allen, LICSW, MHP, CMHS's license?

NPPES lists Washington license number LW60424218, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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.