NPPES file of Aug 9, 2026

Hannah Horowitz

Social Worker · Willows, CA

Hannah Horowitz is a social worker with a practice address in Willows, California, and NPI 1871961888, issued on Sep 8, 2015. 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871961888
Name
Hannah Horowitz
Primary taxonomy
Social Worker 104100000X
Practice location
242 N Villa Ave, Willows, CA 95988
Phone
(530) 934-6582
Enumerated
Sep 8, 2015
Record last updated
Sep 8, 2015 (not updated in 11 years: call before relying on the address or phone)
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 242 N Villa Ave

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

  1. Amber ArnoldCase Manager/Care Coordinator1013451822
  2. Roxann Baillergeon, MFTMarriage & Family Therapist1598805517
  3. Jennifer Blackwell, ACSWClinical Social Worker1023141843
  4. Dedra Brooks, LCSWClinical Social Worker1093855330
  5. Kimberly BroussardRehabilitation Practitioner1073244752
  6. Shelby BruceMental Health Counselor1710584693

Verify Hannah Horowitz 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

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Social Worker providers in California

There are 10,332 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. Sara Abdi-PanarielloSacramento, CA1912186172
  10. Pearl AbdoGilroy, CA1598826802

Common questions

What is Hannah Horowitz's NPI number?

Hannah Horowitz's National Provider Identifier (NPI) is 1871961888, issued on Sep 8, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Hannah Horowitz located?

The NPPES record lists a practice address at 242 N Villa Ave, Willows, CA, 95988. Phone: (530) 934-6582. Providers update this record themselves, so call before visiting.

How can I verify Hannah Horowitz'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), 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.