NPPES file of Aug 9, 2026

Lok Sum Yuen, M.A., CCC-SLP

Speech-Language Pathologist · Arcadia, CA

Lok Sum Yuen, M.A., CCC-SLP is a speech-language pathologist with a practice address in Arcadia, California, and NPI 1710391289, issued on Jun 12, 2014. Check the license (California SP21141, 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
1710391289
Name
Lok Sum Yuen
Credential
M.A., CCC-SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
SP21141 CA
Self-reported in NPPES; status is on the state search
Practice location
4075 E Live Oak Ave Ste B, Arcadia, CA 91006
Phone
(785) 226-5598
Enumerated
Jun 12, 2014
Record last updated
Nov 4, 2022
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 4075 E Live Oak Ave Ste B

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

  1. Tak Nim Ho, M.A.,CCC-SLPSpeech-Language Pathologist1154096410
  2. Myline LamSpeech-Language Pathologist1265255236
  3. Lorena LopezSpeech-Language Assistant1306646351
  4. Marissa Wu, CF-SLPSpeech-Language Pathologist1407687437
  5. Ming-Suey Ivy YangSpeech-Language Pathologist1083395842

Verify Lok Sum Yuen 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 SP21141
    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

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37 speech-language pathologist records list a practice address in Arcadia

They are 37 of the 2,033 NPPES records with a practice address in Arcadia, and 13,141 speech-language pathologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other speech-language pathologist records in California

  1. Roxana AamesSan Francisco, CA1518609981
  2. Sedie Abadi, D.C.Los Angeles, CA1679674089
  3. Careen AbadjianFresno, CA1982092029
  4. Lisa Abai, MA CCC-SLPLos Angeles, CA1871446260
  5. Rachel AbalSan Francisco, CA1245842483
  6. Ilyssa Abaranok, M.S. CCC-SLPNorth Hollywood, CA1699082362
  7. Robert AbarcaLong Beach, CA1770393142
  8. Kelley Amber Abarquez, SLPHawthorne, CA1932663804
  9. Diane Abatemarco, SLP-CFSan Francisco, CA1457710964
  10. Kathryn Abbene, M.A. CCC-SLPRancho Santa Margarita, CA1215492897

Common questions

What is Lok Sum Yuen, M.A., CCC-SLP's NPI number?

Lok Sum Yuen, M.A., CCC-SLP's National Provider Identifier (NPI) is 1710391289, issued on Jun 12, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Lok Sum Yuen, M.A., CCC-SLP located?

The NPPES record lists a practice address at 4075 E Live Oak Ave Ste B, Arcadia, CA, 91006. Phone: (785) 226-5598. Providers update this record themselves, so call before visiting.

How can I verify Lok Sum Yuen, M.A., CCC-SLP's license?

NPPES lists California license number SP21141, 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.