David Alexander Thomson, LCSW
Clinical Social Worker · San Francisco, CA
David Alexander Thomson, LCSW is a clinical social worker with a practice address in San Francisco, California, and NPI 1205814415, issued on Jan 6, 2006. Check the license (California LCS6951, 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
- David Alexander Thomson
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LCS6951 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3569 Sacramento St, San Francisco, CA 94118
- Phone
- (415) 567-0095
- Enumerated
- Jan 6, 2006
- Record last updated
- Jul 13, 2026
- Medicare enrollment
- Enrolled (PECOS I20050214000496); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 3569 Sacramento St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Alexander Thomson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license LCS6951Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
David Alexander Thomson among 36,261 clinical social worker records in California
David Alexander Thomson, LCSW is one of 36,261 clinical social worker records with a practice address in California. 6% 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 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 91% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1974 · median 2012 among the 4,008 with a school on file
- Record last updated2026 · 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,358 clinical social worker records list a practice address in San Francisco
They are 1,358 of the 38,143 NPPES records with a practice address in San Francisco, 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 36,261 in California → Every provider in San Francisco → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Christine Chu, L. C. S. W.San Francisco, CA 941181154407567
- Wai ChungSan Francisco, CA 941181649294745
- Janet Gillen, LCSWSan Francisco, CA 941181487747051
- Denise Jeong, MSWSan Francisco, CA 941181922172774
- Maurice Kamins, LCSWSan Francisco, CA 941181457445504
- Thomas Maloney, LCSWSan Francisco, CA 941181205911757
- Carole Marcus, LCSWSan Francisco, CA 941181730298415
- Nancy Moser, LCSWSan Francisco, CA 941181205936317
Common questions
What is David Alexander Thomson, LCSW's NPI number?
David Alexander Thomson, LCSW's National Provider Identifier (NPI) is 1205814415, issued on Jan 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Alexander Thomson, LCSW located?
The NPPES record lists a practice address at 3569 Sacramento St, San Francisco, CA, 94118. Phone: (415) 567-0095. Providers update this record themselves, so call before visiting.
How can I verify David Alexander Thomson, LCSW's license?
NPPES lists California license number LCS6951, 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.