Registry data as of Aug 27, 2026

Katherine Arenella, PHD

Clinical Psychologist · Alhambra, CA

Katherine Arenella, PHD is a clinical psychologist with a practice address in Alhambra, California, and NPI 1669035960, issued on Apr 22, 2019. 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
1669035960
Name
Katherine Arenella
Credential
PHD
Primary taxonomy
Clinical Psychologist 103TC0700X
Practice location
1000 S Fremont Avenue, Alhambra, CA 91803
Phone
(310) 299-2040
Enumerated
Apr 22, 2019
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 Katherine Arenella 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 →

Clinical Psychologist providers in California

There are 11,200 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 11,200 in California → Every provider in Alhambra →

Other clinical psychologist records in California

  1. Tanya Aaen, PH.D.Martinez, CA1477518561
  2. Jack Aamot, PSY.D.Napa, CA1770711210
  3. Elena Abalo-Dehmer, PH.D.Anaheim, CA1942406368
  4. Brian Abary, PSY.DLos Angeles, CA1538354832
  5. Tatevik Abaryan, PH.D.Pacoima, CA1952682619
  6. Liana Abascal, PH.D.San Diego, CA1073740569
  7. Jessica Abdalla, PHDWalnut Creek, CA1558069211
  8. Mohamed Abdallah, PSY.DEl Centro, CA1912430851
  9. Megan Abdolrashidi, PSYDGilroy, CA1093293094
  10. Qutayba Abdullatif, PH.D.Pasadena, CA1134667751

Common questions

What is Katherine Arenella, PHD's NPI number?

Katherine Arenella, PHD's National Provider Identifier (NPI) is 1669035960, issued on Apr 22, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Arenella, PHD located?

The NPPES record lists a practice address at 1000 S Fremont Avenue, Alhambra, CA, 91803. Phone: (310) 299-2040. Providers update this record themselves, so call before visiting.

How can I verify Katherine Arenella, PHD'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.