NPPES file of Aug 9, 2026

Gavin O'Sullivan

Clinical Social Worker · Colfax, CA

Gavin O'Sullivan is a clinical social worker with a practice address in Colfax, California, and NPI 1588782593, issued on Mar 27, 2007. Check the license (California LCSW69682, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588782593
Name
Gavin O'Sullivan
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LCSW69682 CA
Self-reported in NPPES; status is on the state search
Practice location
840 Old Grass Valley RD, Colfax, CA 95713
Phone
(530) 217-3575
Enumerated
Mar 27, 2007
Record last updated
Nov 18, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Gavin O'Sullivan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license LCSW69682    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 California license search

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4 clinical social worker records list a practice address in Colfax

They are 4 of the 44 NPPES records with a practice address in Colfax, 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 4 in Colfax → All 36,261 in California → Every provider in Colfax →

Other clinical social worker records in California

  1. Lynne Aalan, LCSWYountville, CA1417195710
  2. Ahmad Fahim AalemiSacramento, CA1033052410
  3. Rachel Aarons, MSW PHDSanta Barbara, CA1871687822
  4. Shari Aarons, LCSWTarzana, CA1467636845
  5. Mary Aarsheim, LCSWPenn Valley, CA1104192616
  6. Sandra Aase, LCSWRiverside, CA1699872325
  7. Maria Abaci, LCSWSan Rafael, CA1205161924
  8. Louisa AbadaOakland, CA1023502259
  9. Alejandro Abarca, LCSWSonora, CA1538184676
  10. Daisy Abarca, ACSWRoseville, CA1548124779

Common questions

What is Gavin O'Sullivan's NPI number?

Gavin O'Sullivan's National Provider Identifier (NPI) is 1588782593, issued on Mar 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gavin O'Sullivan located?

The NPPES record lists a practice address at 840 Old Grass Valley RD, Colfax, CA, 95713. Phone: (530) 217-3575. Providers update this record themselves, so call before visiting.

How can I verify Gavin O'Sullivan's license?

NPPES lists California license number LCSW69682, 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.

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.