AMAYA CONSTANCE ALONSO HALLIFAX
NPI 1306557616
Occupational Therapist in Fremont, CA

Active since December 07, 2022
39180 FARWELL DR STE 211, FREMONT, CA 94538(510) 892-4855 Get Directions Write a Review

NPPES record last updated: May 11, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 11, 2023, Dec 7, 2022 (2 updates tracked since 2022).

About Amaya Constance Alonso Hallifax NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

AMAYA CONSTANCE ALONSO HALLIFAX (NPI 1306557616) is an individual occupational therapist in Fremont, California, licensed in California (22567) and active in the NPI registry since December 2022.

NPPES Registry Identity

NPI1306557616
Entity TypeIndividualFemale
Primary Taxonomy225X00000X
Provider Legal NameAMAYA CONSTANCE ALONSO HALLIFAX
Location Address39180 FARWELL DR STE 211Fremont, CA 94538-1015
Mailing Address1188 Oxford StBerkeley, CA 94707-2624 · (510) 717-0860
Sole ProprietorYes
Enumeration DateDecember 7, 2022
Last NPPES UpdateMay 11, 20232 updates tracked since enumeration
NPPES CertifiedMay 11, 2023
✔ NPI 1306557616 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
License✔ Licensed in CA · 22567
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
39180 FARWELL DR STE 211, Fremont, CA 94538

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Amaya Constance Alonso Hallifax is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Amaya Alonso Hallifax reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
1190 VETERANS BLVD
Redwood City, CA 94063
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Preventive Medicine (Occupational Medicine)
39180 FARWELL DR STE 211
FREMONT, CA 94538
Specialist
39180 FARWELL DR STE 211
FREMONT, CA 94538
Occupational Therapist
39180 FARWELL DR STE 211
FREMONT, CA 94538
Physical Therapist (Orthopedic)
39180 FARWELL DR STE 211
FREMONT, CA 94538
Occupational Therapist
39180 FARWELL DR STE 211
FREMONT, CA 94538
Occupational Therapist (Hand)
39180 FARWELL DR STE 211
FREMONT, CA 94538
Occupational Therapist (Hand)
39180 FARWELL DR STE 211
FREMONT, CA 94538
Physician Assistant (Medical)
39180 FARWELL DR STE 211
FREMONT, CA 94538

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Amaya Alonso Hallifax's NPI number?

The NPI number for Amaya Alonso Hallifax is 1306557616. It was assigned to this individual provider in the NPPES registry on December 7, 2022.

Where is Amaya Alonso Hallifax located?

Amaya Alonso Hallifax practices at 39180 Farwell Dr Ste 211, Fremont, CA 94538. The listed phone number is (510) 892-4855.

What is Amaya Alonso Hallifax's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

Is Amaya Alonso Hallifax enrolled in Medicare?

Yes. Amaya Alonso Hallifax is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Amaya Alonso Hallifax's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Amaya Alonso Hallifax reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Amaya Alonso Hallifax's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Amaya Alonso Hallifax was last updated on May 11, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.