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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MS. JOY MASON P.T.A., A.T.C.
NPI 1346290616
Specialist/Technologist - Athletic Trainer in San Mateo, CA

Active since May 10, 2006
516 SYLVAN AVE, SAN MATEO, CA 94403(650) 571-5686 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Ms. Joy Mason P.t.a., A.t.c. NPPES

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

MS. JOY MASON P.T.A., A.T.C. (NPI 1346290616) is an individual athletic trainer provider in San Mateo, California and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1346290616
Entity TypeIndividualFemale
Primary Taxonomy2255A2300X
Provider Legal NameMS. JOY MASONCredential: P.T.A., A.T.C.
Location Address516 SYLVAN AVESan Mateo, CA 94403-3214
Mailing Address516 Sylvan AveSan Mateo, CA 94403-3214 · (650) 571-5686
Phone(650) 571-5686
Sole ProprietorNo
Enumeration DateMay 10, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1346290616 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySpecialist/Technologist · Athletic TrainerRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code2255A2300X
Definition
Athletic trainers are allied health care professionals who work in consultation with or under the direction of physicians, and specialize in the prevention, assessment, treatment and rehabilitation of injuries and illnesses. Currently, the entry-level employment requirements are a bachelor's degree with a major in athletic training from an accredited university or college. A majority of athletic trainers hold advanced degrees. National board certification is generally required as a condition of state licensure and employment. Most states regulate athletic trainers, and they practice within the scope of that license or regulation. Clinical practice includes emergency care, rehabilitation, reconditioning, therapeutic exercise, wellness programs, exercise physiology, kinesiology, biomechanics, nutrition, psychology and health care administration.
Also ListedPhysical Therapy AssistantTaxonomy 225200000X · License AT 2378 (CA)
516 SYLVAN AVE, San Mateo, CA 94403
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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 Joy Mason's NPI number?

The NPI number for Joy Mason is 1346290616. It was assigned to this individual provider in the NPPES registry on May 10, 2006.

Where is Joy Mason located?

Joy Mason practices at 516 Sylvan Ave, San Mateo, CA 94403. The listed phone number is (650) 571-5686.

What is Joy Mason's specialty?

The primary specialty registered for this NPI is Specialist/Technologist, specializing in Athletic Trainer, with taxonomy code 2255A2300X.

When was this NPI record last updated?

The NPPES record for Joy Mason was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days 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.