NPPES file of Aug 9, 2026

Amaya Constance Alonso Hallifax

Occupational Therapist · Fremont, CA

Amaya Constance Alonso Hallifax is an occupational therapist with a practice address in Fremont, California, and NPI 1306557616, issued on Dec 7, 2022. Check the license (California 22567, 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
1306557616
Name
Amaya Constance Alonso Hallifax
Primary taxonomy
Occupational Therapist 225X00000X
License number
22567 CA
Self-reported in NPPES; status is on the state search
Practice location
39180 Farwell Dr Ste 211, Fremont, CA 94538
Phone
(510) 892-4855
Enumerated
Dec 7, 2022
Record last updated
May 11, 2023
Medicare enrollment
Enrolled (PECOS I20230113002275); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 2020
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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Also registered at 39180 Farwell Dr Ste 211

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

  1. Melinda Carol, MD MPHOccupational Medicine Physician1053449918
  2. Robert Estis, P.AMedical Physician Assistant1992761670
  3. Joan Ferrari, OTR/L, CHTHand Occupational Therapist1841700549
  4. Marci Kneeter, PTOrthopedic Physical Therapist1518000652
  5. Lashonda Petry, OTR/LSpecialist1073936498
  6. Troy Shelton, OTR/L, CHT, CEASHand Occupational Therapist1992360044

Verify Amaya Constance Alonso Hallifax 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 22567
    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. Permanente Medical Group IncOakland, CA

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

Amaya Constance Alonso Hallifax among 9,244 occupational therapist records in California

Amaya Constance Alonso Hallifax is one of 9,244 occupational therapist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 71% of them.

  • NPI issued2022 · 71% of these records are older, 23% newer
  • In a Medicare fileYes · 9% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2020 · median 2018 among the 910 with a school on file
  • Record last updated2023 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

74 occupational therapist records list a practice address in Fremont

They are 74 of the 4,749 NPPES records with a practice address in Fremont, and 9,244 occupational therapist records in California.

The 8 occupational therapist records with the nearest ZIP codes

  1. Shubha ChandrashekharFremont, CA 945381558759050
  2. Melissa De Unamuno, M.O.T.L.Fremont, CA 945381245256056
  3. Gueyfang Jih, PHD OTRFremont, CA 945381073728515
  4. Allison Jimenez, OTRFremont, CA 945381881803435
  5. Kay Kitauchi, BS, OT/LFremont, CA 945381760638340
  6. Mark Neves, OTRLFremont, CA 945381295869923
  7. Brittney NicholsFremont, CA 945381841591203
  8. Justine Park, OTR/LFremont, CA 945381033485594

Common questions

What is Amaya Constance Alonso Hallifax's NPI number?

Amaya Constance Alonso Hallifax's National Provider Identifier (NPI) is 1306557616, issued on Dec 7, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Amaya Constance Alonso Hallifax located?

The NPPES record lists a practice address at 39180 Farwell Dr Ste 211, Fremont, CA, 94538. Phone: (510) 892-4855. Providers update this record themselves, so call before visiting.

How can I verify Amaya Constance Alonso Hallifax's license?

NPPES lists California license number 22567, 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.

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.