NPPES file of Aug 9, 2026

Marlencia Jean Williams, LICSW

Clinical Social Worker · Tukwila, WA

Marlencia Jean Williams, LICSW is a clinical social worker with a practice address in Tukwila, Washington, and NPI 1215687934, issued on Mar 25, 2022. Check the license (Washington LW61599046, 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
1215687934
Name
Marlencia Jean Williams
Credential
LICSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License numbers
LW61599046 WA
SC61213994 WA
Self-reported in NPPES; status is on the state search
Practice location
15455 65TH Ave S, Tukwila, WA 98188
Phone
(206) 721-5170
Enumerated
Mar 25, 2022
Record last updated
Jun 18, 2025
Fax
(360) 353-9440
Medicare enrollment
Enrolled (PECOS I20250714002441); may accept 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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8 nearest clinical social worker records → All 6,382 in Washington → Look up another NPI →

Also registered at 15455 65TH Ave S

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

  1. Eduardo Abuyog, L.I.C.S.W.Clinical Social Worker1912078361
  2. Tate Bates, MSW, LSWAICClinical Social Worker1689150997
  3. Twila Begay, LICSW-AClinical Social Worker1518349265
  4. Alison BirdMental Health Counselor1710394374
  5. Kevin Boren, LMHC, CDP, LPC, NCCMental Health Counselor1851725501
  6. Kimberly Brown, CDPAddiction (Substance Use Disorder) Counselor1194185835

Verify Marlencia Jean Williams 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 LW61599046    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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Marlencia Jean Williams among 6,382 clinical social worker records in Washington

Marlencia Jean Williams, LICSW is one of 6,382 clinical social worker records with a practice address in Washington. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2022, is newer than 76% of them.

  • NPI issued2022 · 76% of these records are older, 19% newer
  • In a Medicare fileNo · 9% of these records are
  • In the CMS Doctors and Clinicians fileYes · 15% of these records are
  • Graduated2021 · median 2010 among the 984 with a school on file
  • Record last updated2025 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

56 clinical social worker records list a practice address in Tukwila

They are 56 of the 1,576 NPPES records with a practice address in Tukwila, 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 6,382 in Washington → Every provider in Tukwila → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Eduardo Abuyog, L.I.C.S.W.Tukwila, WA 981881912078361
  2. Lisa Cooper, LICSWTukwila, WA 981881942361605
  3. Jennifer Dieringer, LICSWTukwila, WA 981881730370909
  4. Masha Fry, MSW, LICSWTukwila, WA 981881992035976
  5. Brett GurzickTukwila, WA 981881316244098
  6. Lisa Kartiganer, MSW, LICSW, ACSWTukwila, WA 981881295849040
  7. Ronnie Kaufman, LICSWTukwila, WA 981881659351286
  8. Allison Kojicic, MSW, LCSWSeatac, WA 981881851588032

Common questions

What is Marlencia Jean Williams, LICSW's NPI number?

Marlencia Jean Williams, LICSW's National Provider Identifier (NPI) is 1215687934, issued on Mar 25, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Marlencia Jean Williams, LICSW located?

The NPPES record lists a practice address at 15455 65TH Ave S, Tukwila, WA, 98188. Phone: (206) 721-5170. Providers update this record themselves, so call before visiting.

How can I verify Marlencia Jean Williams, LICSW's license?

NPPES lists Washington license number LW61599046, 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.