NPPES file of Aug 9, 2026

Melissa Sadikoff, MSW, LCSW

Clinical Social Worker · Newport Beach, CA

Melissa Sadikoff, MSW, LCSW is a clinical social worker with a practice address in Newport Beach, California, and NPI 1891313359, issued on Jul 10, 2020. Check the license (California LCSW21462, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891313359
Name
Melissa Sadikoff
Credential
MSW, LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LCSW21462 CA
Self-reported in NPPES; status is on the state search
Practice location
1601 Avocado Ave, Newport Beach, CA 92660
Phone
(949) 763-2515
Enumerated
Jul 10, 2020
Record last updated
Dec 4, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200807002637); accepts Medicare assignment
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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8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →

Also registered at 1601 Avocado Ave

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

  1. Linda Buck, NPAdult Health Nurse Practitioner1063818912
  2. Jill Bunney, NPNurse Practitioner1427575232
  3. Hang Dang, D.OSurgery Physician1467632661
  4. Era Hamilton, M.D.Gynecology Physician1205886629
  5. Carol Jones, PH.D., LMFTMarriage & Family Therapist1255668539
  6. Misagh Karimi, MDHematology & Oncology Physician1770583197

Verify Melissa Sadikoff 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 LCSW21462    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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Bills Medicare through one group practice

  1. City OF Hope Medical FoundationNewport Beach, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Melissa Sadikoff among 36,261 clinical social worker records in California

Melissa Sadikoff, MSW, 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. Its NPI, issued in 2020, is newer than 72% of them.

  • NPI issued2020 · 72% of these records are older, 23% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated1997 · median 2012 among the 4,008 with a school on file
  • Record last updated2020 · 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).

102 clinical social worker records list a practice address in Newport Beach

They are 102 of the 4,414 NPPES records with a practice address in Newport Beach, and 36,261 clinical social worker records in California.

All 36,261 in California → Every provider in Newport Beach → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Cynthia Cassil, LCSWNewport Beach, CA 926601174616742
  2. Martha Contreras-Pantoja, LCSWNewport Beach, CA 926601295864932
  3. Jennifer De Francisco, L.C.S.W.Newport Beach, CA 926601386651107
  4. Lindsey Krogh, LCSWNewport Beach, CA 926601063551398
  5. Eve Lievonen, LCSWNewport Beach, CA 926601356329791
  6. Laurie Lucas, LCSWNewport Beach, CA 926601114910288
  7. Arthur Montes, DSW LCSWNewport Beach, CA 926601447380910
  8. Richard Nyberg, MSW, MDIV.Newport Beach, CA 926601760556468

Common questions

What is Melissa Sadikoff, MSW, LCSW's NPI number?

Melissa Sadikoff, MSW, LCSW's National Provider Identifier (NPI) is 1891313359, issued on Jul 10, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Sadikoff, MSW, LCSW located?

The NPPES record lists a practice address at 1601 Avocado Ave, Newport Beach, CA, 92660. Phone: (949) 763-2515. Providers update this record themselves, so call before visiting.

How can I verify Melissa Sadikoff, MSW, LCSW's license?

NPPES lists California license number LCSW21462, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.