NPPES file of Aug 9, 2026

Marissa Klein, MS, CCC-SLP

Speech-Language Pathologist · Downey, CA

Marissa Klein, MS, CCC-SLP is a speech-language pathologist with a practice address in Downey, California, and NPI 1679990006, issued on Mar 24, 2014. Check the license (California 18870, 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
1679990006
Name
Marissa Klein
Credential
MS, CCC-SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
18870 CA
Self-reported in NPPES; status is on the state search
Practice location
7601 Imperial Hwy, Downey, CA 90242
Phone
(562) 385-8320
Enumerated
Mar 24, 2014
Record last updated
Oct 11, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(562) 385-6690
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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8 nearest speech-language pathologist records → All 13,141 in California → Look up another NPI →

Also registered at 7601 Imperial Hwy

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

  1. Carolina AbkarianClinical Social Worker1700102803
  2. Leila AbulashinOccupational Therapist1265854533
  3. Teeni Adal, RDNRegistered Dietitian1730642562
  4. Edilberto AdayaRegistered Nurse1619780079
  5. Leslie AedoSpeech-Language Pathologist1255865259
  6. Yesenia AguilarClinical Social Worker1558510263

Verify Marissa Klein 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 18870    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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Marissa Klein among 13,141 speech-language pathologist records in California

Marissa Klein, MS, CCC-SLP is one of 13,141 speech-language pathologist records with a practice address in California. 3% 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 2014, is newer than 24% of them.

  • NPI issued2014 · 24% of these records are older, 72% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileNo · 4% of these records are
  • Record last updated2017 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 235Z00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

51 speech-language pathologist records list a practice address in Downey

They are 51 of the 3,607 NPPES records with a practice address in Downey, and 13,141 speech-language pathologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 13,141 in California → Every provider in Downey → Speech-Language Pathologist nationwide →

The 8 speech-language pathologist records with the nearest ZIP codes

  1. Leslie AedoDowney, CA 902421255865259
  2. Nicola Bettino, SLPDowney, CA 902421912221987
  3. Deborah BezonskyDowney, CA 902421013169382
  4. Wendy Burton, CCC-SPDowney, CA 902421124551700
  5. Cecilia Campi, SPEECH THERAPISTDowney, CA 902421295959013
  6. Mary Doyle JacobsonDowney, CA 902421366976789
  7. Natalia HenselDowney, CA 902421952619330
  8. Kristine Parker, M.A.Downey, CA 902421063610178

Common questions

What is Marissa Klein, MS, CCC-SLP's NPI number?

Marissa Klein, MS, CCC-SLP's National Provider Identifier (NPI) is 1679990006, issued on Mar 24, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Klein, MS, CCC-SLP located?

The NPPES record lists a practice address at 7601 Imperial Hwy, Downey, CA, 90242. Phone: (562) 385-8320. Providers update this record themselves, so call before visiting.

How can I verify Marissa Klein, MS, CCC-SLP's license?

NPPES lists California license number 18870, 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.

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.