William Spence Casey, MSW
Clinical Social Worker · Berkeley, CA
William Spence Casey, MSW is a clinical social worker with a practice address in Berkeley, California, and NPI 1720149354, issued on Dec 13, 2006. Check the license (California 26396, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Spence Casey
- Credential
- MSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 26396 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2640 Martin Luther King JR Way, Berkeley, CA 94704
- Phone
- (510) 981-5290
- Enumerated
- Dec 13, 2006
- Record last updated
- Apr 3, 2023
- Fax
- (510) 981-5265
- Entity
- Type 1 · individual
Also registered at 2640 Martin Luther King JR Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Aguilera, PSYDStudent in an Organized Health Care Education/Training Program1720414758
- Hauwa Ahmed, MSWCounselor1346387180
- Anthony AlcuttSocial Worker1558461558
- Laura Alie, PSY.D.Counselor1497902159
- Elliett AlomarSocial Worker1962961581
- Efiya AsabiStudent in an Organized Health Care Education/Training Program1821465683
Verify William Spence Casey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 26396Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
287 clinical social worker records list a practice address in Berkeley
They are 287 of the 4,898 NPPES records with a practice address in Berkeley, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 287 in Berkeley → All 36,261 in California → Every provider in Berkeley →
Other clinical social worker records in California
- Lynne Aalan, LCSWYountville, CA1417195710
- Ahmad Fahim AalemiSacramento, CA1033052410
- Rachel Aarons, MSW PHDSanta Barbara, CA1871687822
- Shari Aarons, LCSWTarzana, CA1467636845
- Mary Aarsheim, LCSWPenn Valley, CA1104192616
- Sandra Aase, LCSWRiverside, CA1699872325
- Maria Abaci, LCSWSan Rafael, CA1205161924
- Louisa AbadaOakland, CA1023502259
- Alejandro Abarca, LCSWSonora, CA1538184676
- Daisy Abarca, ACSWRoseville, CA1548124779
Common questions
What is William Spence Casey, MSW's NPI number?
William Spence Casey, MSW's National Provider Identifier (NPI) is 1720149354, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Spence Casey, MSW located?
The NPPES record lists a practice address at 2640 Martin Luther King JR Way, Berkeley, CA, 94704. Phone: (510) 981-5290. Providers update this record themselves, so call before visiting.
How can I verify William Spence Casey, MSW's license?
NPPES lists California license number 26396, as entered by the provider. Search the California 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.