NPPES file of Aug 9, 2026

Lois Lin Chen, MS, CCC-SLP

Speech-Language Pathologist · San Francisco, CA

Lois Lin Chen, MS, CCC-SLP is a speech-language pathologist with a practice address in San Francisco, California, and NPI 1831680982, issued on May 24, 2018. Check the license (California 24460, 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
1831680982
Name
Lois Lin Chen
Credential
MS, CCC-SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
24460 CA
Self-reported in NPPES; status is on the state search
Practice location
2340 Clay St FL 5, San Francisco, CA 94115
Phone
(415) 600-0151
Enumerated
May 24, 2018
Record last updated
Aug 25, 2025
Fax
(415) 366-7559
Medicare enrollment
Enrolled (PECOS I20250519002662); 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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8 nearest speech-language pathologist records → All 13,141 in California → Look up another NPI →

Also registered at 2340 Clay St FL 5

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

  1. William BuisFamily Nurse Practitioner1326544347
  2. Patrick CarpenterPlastic Surgery within the Head & Neck (Otolaryngology) Physician1154718179
  3. Craig Eldridge, PA-CPhysician Assistant1366833840
  4. William Ryan, M.D.Plastic Surgery within the Head & Neck (Otolaryngology) Physician1184811549
  5. Jon Wender, MDOphthalmology Physician1588811509
  6. Katherine Yung, M.D.Otolaryngology/Facial Plastic Surgery Physician1508985243

Verify Lois Lin Chen 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 24460    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. Sutter Bay Medical FoundationSan Francisco, CA

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

Lois Lin Chen among 13,141 speech-language pathologist records in California

Lois Lin Chen, 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. Its NPI, issued in 2018, is newer than 41% of them.

  • NPI issued2018 · 41% of these records are older, 54% newer
  • In a Medicare fileYes · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 4% of these records are
  • Graduated2015 · median 2017 among the 573 with a school on file
  • Record last updated2025 · 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).

Speech-Language Pathologist providers in California

There are 13,141 speech-language pathologist records in California.

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

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

  1. Erin Brightwell, MS, CCC-SLPSan Francisco, CA 941151881861094
  2. Margaret Coffey, MSCSan Francisco, CA 941151538104930
  3. Sara CoffeySan Francisco, CA 941151336446830
  4. Monique De SenerpontSan Francisco, CA 941151245453331
  5. Tricia Evans WoodleySan Francisco, CA 941151609099894
  6. Beth GravelineSan Francisco, CA 941151265676423
  7. Hazel LamSan Francisco, CA 941151407998081
  8. Susan Langmore, SLPSan Francisco, CA 941151992757199

Common questions

What is Lois Lin Chen, MS, CCC-SLP's NPI number?

Lois Lin Chen, MS, CCC-SLP's National Provider Identifier (NPI) is 1831680982, issued on May 24, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Lois Lin Chen, MS, CCC-SLP located?

The NPPES record lists a practice address at 2340 Clay St FL 5, San Francisco, CA, 94115. Phone: (415) 600-0151. Providers update this record themselves, so call before visiting.

How can I verify Lois Lin Chen, MS, CCC-SLP's license?

NPPES lists California license number 24460, 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.