NPPES file of Aug 9, 2026

Ellen Ruth Kotkin, LCSW

Clinical Social Worker · Irvine, CA

Ellen Ruth Kotkin, LCSW is a clinical social worker with a practice address in Irvine, California, and NPI 1457780686, issued on Nov 7, 2013. Check the license (California 73934, 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
1457780686
Name
Ellen Ruth Kotkin
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
73934 CA
Self-reported in NPPES; status is on the state search
Practice location
16755 Von Karman Ave, Irvine, CA 92606
Phone
(949) 929-9244
Enumerated
Nov 7, 2013
Record last updated
Jul 18, 2023
Medicare enrollment
Enrolled (PECOS I20201211001149); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Ellen Ruth Kotkin 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 73934
    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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Ellen Ruth Kotkin among 36,261 clinical social worker records in California

Ellen Ruth Kotkin, LCSW 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 2013, is newer than 42% of them.

  • NPI issued2013 · 42% of these records are older, 55% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2013 · median 2012 among the 4,008 with a school on file
  • 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).

144 clinical social worker records list a practice address in Irvine

They are 144 of the 7,778 NPPES records with a practice address in Irvine, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical social worker records with the nearest ZIP codes

  1. Eman AliIrvine, CA 926061124947866
  2. Maryann Alinas, LCSWIrvine, CA 926061912134099
  3. Susana Alvarez, LCSWIrvine, CA 926061265688907
  4. Denise Bennett-Arabatzis, LCSWIrvine, CA 926061992172845
  5. Taylor BlanchardIrvine, CA 926061821719683
  6. Ella CaesteckerIrvine, CA 926061023620374
  7. Meiqi Liu, LCSWIrvine, CA 926061821616434
  8. Abigail RodriguezIrvine, CA 926061710639471

Common questions

What is Ellen Ruth Kotkin, LCSW's NPI number?

Ellen Ruth Kotkin, LCSW's National Provider Identifier (NPI) is 1457780686, issued on Nov 7, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Ellen Ruth Kotkin, LCSW located?

The NPPES record lists a practice address at 16755 Von Karman Ave, Irvine, CA, 92606. Phone: (949) 929-9244. Providers update this record themselves, so call before visiting.

How can I verify Ellen Ruth Kotkin, LCSW's license?

NPPES lists California license number 73934, 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.

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.