Mary Kathleen Brennan, MSW, DSW
Clinical Social Worker · Seattle, WA
Mary Kathleen Brennan, MSW, DSW is a clinical social worker with a practice address in Seattle, Washington, and NPI 1386280238, issued on Nov 25, 2019. Check the license (Washington LW00004504, 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.
- Name
- Mary Kathleen Brennan
- Credential
- MSW, DSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LW00004504 WA
Self-reported in NPPES; status is on the state search - Practice location
- 564 NE Ravenna Blvd, Seattle, WA 98115
- Phone
- (206) 527-2266
- Enumerated
- Nov 25, 2019
- Record last updated
- Nov 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 564 NE Ravenna Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mc AbramsonMarriage & Family Therapist1821181306
- Marti AitkenMarriage & Family Therapist1841386638
- Anna AndersonMarriage & Family Therapist1780089540
- James AultmanClinical Social Worker1043320948
- Anthony Barr-JeffreyMental Health Counselor1912281171
- Grace Stephanie Carpenter, LMHCMental Health Counselor1225683683
Verify Mary Kathleen Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license LW00004504Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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
- 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 Mary Kathleen Brennan, MSW, DSW's NPI number?
Mary Kathleen Brennan, MSW, DSW's National Provider Identifier (NPI) is 1386280238, issued on Nov 25, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mary Kathleen Brennan, MSW, DSW located?
The NPPES record lists a practice address at 564 NE Ravenna Blvd, Seattle, WA, 98115. Phone: (206) 527-2266. Providers update this record themselves, so call before visiting.
How can I verify Mary Kathleen Brennan, MSW, DSW's license?
NPPES lists Washington license number LW00004504, 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.
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.