Brenda Arzillo, S.W.
Clinical Social Worker · Seattle, WA
Brenda Arzillo, S.W. is a clinical social worker with a practice address in Seattle, Washington, and NPI 1861544504, issued on Jan 16, 2007. Check the license (Washington LW00007234, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Brenda Arzillo
- Credential
- S.W.
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LW00007234 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1730 Minor Ave, Seattle, WA 98101
- Phone
- (206) 287-2500
- Enumerated
- Jan 16, 2007
- Record last updated
- Mar 31, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (206) 287-2626
- Medicare enrollment
- Enrolled (PECOS I20091124000198); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1730 Minor Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ann Branchaud, M.D.Psychiatry Physician1285681254
- Michael Cunha, LMHCMental Health Counselor1396962312
- Christpher Dattan, M.D.Psychiatry Physician1366593204
- Nancy Dorn, RN, ARNPAdult Health Nurse Practitioner1598986481
- Selene Drake-David, LCSWClinical Social Worker1144371931
- L. Evans, LWAddiction (Substance Use Disorder) Counselor1730211350
Verify Brenda Arzillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license LW00007234Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF WashingtonBellevue, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
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.
All 1,704 in Seattle → All 6,382 in Washington → Every provider in Seattle →
Other clinical social worker records in Washington
- Anita Abba Richard, LCMSWPort Townsend, WA1376613364
- Elizabeth Abbott, MSW, LICSWBellingham, WA1043701303
- Medina AbdiSeattle, WA1316422520
- Amal AbdulrahmanRenton, WA1104406008
- Elizabeth AbebefeSeattle, WA1376926899
- Lorena Abenojar, MSW, LICSWSeattle, WA1457018517
- Jenna Abrams, LCSW, LICSWDupont, WA1710595301
- Anna AbramyanSpokane, WA1346766714
- Eduardo Abuyog, L.I.C.S.W.Tukwila, WA1912078361
- Isis Acevedo GonzalezYakima, WA1184216392
Common questions
What is Brenda Arzillo, S.W.'s NPI number?
Brenda Arzillo, S.W.'s National Provider Identifier (NPI) is 1861544504, issued on Jan 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Brenda Arzillo, S.W. located?
The NPPES record lists a practice address at 1730 Minor Ave, Seattle, WA, 98101. Phone: (206) 287-2500. Providers update this record themselves, so call before visiting.
How can I verify Brenda Arzillo, S.W.'s license?
NPPES lists Washington license number LW00007234, 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.