NPPES file of Aug 9, 2026

Leah Daffner, ASW

Clinical Social Worker · Oakland, CA

Leah Daffner, ASW is a clinical social worker with a practice address in Oakland, California, and NPI 1003535949, issued on Aug 24, 2022. Check the license (California ASW109842, 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
1003535949
Name
Leah Daffner
Credential
ASW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
ASW109842 CA
Self-reported in NPPES; status is on the state search
Practice location
10700 Macarthur Blvd, Oakland, CA 94605
Phone
(510) 853-3668
Enumerated
Aug 24, 2022
Record last updated
Aug 25, 2023
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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8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →

Also registered at 10700 Macarthur Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rochelle Allen, CRTEducational Certified Respiratory Therapist1881121663
  2. Corey Bohman, RN, ANPAdult Health Nurse Practitioner1235572728
  3. Michele BurkeNurse Practitioner1811146889
  4. Shelitha Campbell, NPFamily Nurse Practitioner1043536410
  5. John Christensen, M.D.Internal Medicine Physician1689646556
  6. Taylor Cuffaro, RN, PHN, AGNP-CNurse Practitioner1972104875

Verify Leah Daffner 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 ASW109842    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Leah Daffner among 36,261 clinical social worker records in California

Leah Daffner, ASW 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 2022, is newer than 81% of them.

  • NPI issued2022 · 81% of these records are older, 14% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 11% of these records are
  • Record last updated2023 · 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).

1,130 clinical social worker records list a practice address in Oakland

They are 1,130 of the 18,558 NPPES records with a practice address in Oakland, 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 Oakland → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Amy Beek, LCSWOakland, CA 946051144437260
  2. Damon Eaves, LCSWOakland, CA 946051881752822
  3. Sonja GossOakland, CA 946051417020280
  4. Marjorie Harper, LCSWOakland, CA 946051851463855
  5. Phoebe Harris Millman, LCSWOakland, CA 946051639245814
  6. Art Hom, LCSWOakland, CA 946051134257926
  7. Lily Hunt, LCSWOakland, CA 946051619040896
  8. Alexander Jackson, LCSWOakland, CA 946051801816244

Common questions

What is Leah Daffner, ASW's NPI number?

Leah Daffner, ASW's National Provider Identifier (NPI) is 1003535949, issued on Aug 24, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Leah Daffner, ASW located?

The NPPES record lists a practice address at 10700 Macarthur Blvd, Oakland, CA, 94605. Phone: (510) 853-3668. Providers update this record themselves, so call before visiting.

How can I verify Leah Daffner, ASW's license?

NPPES lists California license number ASW109842, 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.