Registry data as of Aug 27, 2026

Samantha Castillo

Social Worker · Eureka, CA

Samantha Castillo is a social worker with a practice address in Eureka, California, and NPI 1881538981, issued on Apr 17, 2026. Check the license 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
1881538981
Name
Samantha Castillo
Primary taxonomy
Social Worker 104100000X
Practice location
2100 J St, Eureka, CA 95501
Phone
(707) 441-2400
Enumerated
Apr 17, 2026
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 2100 J St

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

  1. Katherine Allen, MSW, IFECMHSchool Social Worker1598536336
  2. R'Delle Anderson, PPSSchool Psychologist1720800493
  3. Deana BaroneHealth Educator1952243834
  4. Jessica Berti, RNSchool Registered Nurse1154182947
  5. Jerry BlackburnHealth & Wellness Coach1164372538
  6. Cortney BorgelinHealth & Wellness Coach1336084110

Verify Samantha Castillo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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 →

31 social worker records list a Eureka practice address

They are 31 of the 2,854 NPPES records with a Eureka practice address, and 10,180 social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 31 in Eureka → All 10,180 in California → Every provider in Eureka →

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 Samantha Castillo's NPI number?

Samantha Castillo's National Provider Identifier (NPI) is 1881538981, issued on Apr 17, 2026. An NPI identifies a provider in billing; it is not a license.

Where is Samantha Castillo located?

The NPPES record lists a practice address at 2100 J St, Eureka, CA, 95501. Phone: (707) 441-2400. Providers update this record themselves, so call before visiting.

How can I verify Samantha Castillo's license?

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.

Compiled from official public sources by the editorial process.

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.