Registry data as of Aug 27, 2026

Katherine Cellini

Social Worker · Castro Valley, CA

Katherine Cellini is a social worker with a practice address in Castro Valley, California, and NPI 1255118246, issued on Sep 12, 2023. Check the license (California ASW134886, 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1255118246
Name
Katherine Cellini
Primary taxonomy
Social Worker 104100000X
License number
ASW134886 CA
Self-reported in NPPES; status is on the state search
Practice location
2050 Fairmont Dr, Castro Valley, CA 94578
Phone
(415) 970-4000
Enumerated
Sep 12, 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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Also registered at 2050 Fairmont Dr

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

  1. Jordan AnthonyLicensed Vocational Nurse1487576617
  2. Chrisantes Finister, LPTLicensed Psychiatric Technician1073472841
  3. Nitzan GladstoneStudent in an Organized Health Care Education/Training Program1083562995
  4. Rosa HuangRegistered Nurse1275230229
  5. Maya Athena ImperialRegistered Nurse1306776257
  6. Nicole LandonStudent in an Organized Health Care Education/Training Program1285519355

Verify Katherine Cellini 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 ASW134886
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Social Worker providers in California

There are 10,180 social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other social worker records in California

  1. Katie AbajianSan Ysidro, CA1710211818
  2. Katherine AbarcaRancho Cucamonga, CA1225814304
  3. Vafa AbbassiPasadena, CA1740538198
  4. Alexis AbbottSan Diego, CA1265158877
  5. Jeanne Abbott, LCSWModesto, CA1780786939
  6. Vanessa AbcedeLos Angeles, CA1306584495
  7. Sabrina AbdelmutiLong Beach, CA1215244280
  8. Michelle AbdennourNorthridge, CA1467838458
  9. Mulky Abdi, BAEl Sobrante, CA1760609861
  10. Sara Abdi-PanarielloSacramento, CA1912186172

Common questions

What is Katherine Cellini's NPI number?

Katherine Cellini's National Provider Identifier (NPI) is 1255118246, issued on Sep 12, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Cellini located?

The NPPES record lists a practice address at 2050 Fairmont Dr, Castro Valley, CA, 94578. Phone: (415) 970-4000. Providers update this record themselves, so call before visiting.

How can I verify Katherine Cellini's license?

NPPES lists California license number ASW134886, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.