NPPES file of Aug 9, 2026

Allison Loy, M.A., CCC-SLP

Speech-Language Pathologist · Menlo Park, CA

Allison Loy, M.A., CCC-SLP is a speech-language pathologist with a practice address in Menlo Park, California, and NPI 1588212526, issued on Sep 3, 2019. Check the license (California 22290, 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
1588212526
Name
Allison Loy
Credential
M.A., CCC-SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
22290 CA
Self-reported in NPPES; status is on the state search
Practice location
120A Santa Margarita Ave, Menlo Park, CA 94025
Phone
(650) 324-0648
Enumerated
Sep 3, 2019
Record last updated
Sep 3, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20250625001836); may accept 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 speech-language pathologist records → All 13,141 in California → Look up another NPI →

Also registered at 120A Santa Margarita Ave

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

  1. Melanie Brownie, M.A., CCC-SLPSpeech-Language Pathologist1306103668
  2. Heather Carr, M.S.Speech-Language Pathologist1205310604
  3. Helen ChuSpeech-Language Pathologist1619473931
  4. Mercedes Cooper, M.S. C.C.C.- SLPSpeech-Language Pathologist1053677963
  5. Julie Flynn, M.S. LEPClinical Neuropsychologist1972161453
  6. Mitzi Geller, M.S., CCC-SLPSpeech-Language Pathologist1881955458

Verify Allison Loy 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 22290    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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Allison Loy among 13,141 speech-language pathologist records in California

Allison Loy, M.A., 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 2019, is newer than 46% of them.

  • NPI issued2019 · 46% of these records are older, 48% newer
  • In a Medicare fileNo · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 4% of these records are
  • Graduated2013 · median 2017 among the 573 with a school on file
  • Record last updated2019 · 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).

31 speech-language pathologist records list a practice address in Menlo Park

They are 31 of the 1,265 NPPES records with a practice address in Menlo Park, 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 Menlo Park → Speech-Language Pathologist nationwide →

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

  1. Kristin AbrahamsMenlo Park, CA 940251912293325
  2. Melanie Brownie, M.A., CCC-SLPMenlo Park, CA 940251306103668
  3. Daisy Choy, SPEECH-LANGUAGE PATHMenlo Park, CA 940251992844518
  4. Mercedes Cooper, M.S. C.C.C.- SLPMenlo Park, CA 940251053677963
  5. Mayra Cramer, M.S., CCC-SLPMenlo Park, CA 940251679861579
  6. Mitzi Geller, M.S., CCC-SLPMenlo Park, CA 940251881955458
  7. Joyce Halper, M.A., CCC-SLPMenlo Park, CA 940251972882801
  8. Angelica Lee, MS, CCC-SLPMenlo Park, CA 940251518228592

Common questions

What is Allison Loy, M.A., CCC-SLP's NPI number?

Allison Loy, M.A., CCC-SLP's National Provider Identifier (NPI) is 1588212526, issued on Sep 3, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Allison Loy, M.A., CCC-SLP located?

The NPPES record lists a practice address at 120A Santa Margarita Ave, Menlo Park, CA, 94025. Phone: (650) 324-0648. Providers update this record themselves, so call before visiting.

How can I verify Allison Loy, M.A., CCC-SLP's license?

NPPES lists California license number 22290, 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.