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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.

DR. TRACY MASI PSYD
NPI 1144852393
Psychologist - Clinical in Mather, CA

Active since February 05, 2020
10535 HOSPITAL WAY, MATHER, CA 95655(916) 843-7000 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

Record update history: Sep 10, 2026, Feb 5, 2020 (2 updates tracked since 2020).

About Dr. Tracy Masi Psyd NPPES

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

DR. TRACY MASI PSYD (NPI 1144852393) is an individual clinical provider in Mather, California, licensed in Washington (61022539) and active in the NPI registry since February 2020.

NPPES Registry Identity

NPI1144852393
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. TRACY MASICredential: PSYD
Location Address10535 HOSPITAL WAYMather, CA 95655-4200
Mailing Address10535 Hospital WayMather, CA 95655-4200 · (916) 843-7000
Phone(916) 843-7000
Sole ProprietorYes
Enumeration DateFebruary 5, 2020
Last NPPES UpdateSeptember 10, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 10, 2026
✔ NPI 1144852393 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in WA · 61022539
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
10535 HOSPITAL WAY, Mather, CA 95655
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Other Providers at the Same Location NPPES 20

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

ALAYNA HUYNH NGUYEN
Pharmacist
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-7000
MS. JANE CHAN RPH
Pharmacist
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 366-5321
DR. PATRICIA L. DALTON M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
10535 HOSPITAL WAY, DEPT. OF VA SACRAMENTO MEDICAL CENTER
MATHER, CA 95655
Sacramento County (916) 843-7000
DR. NICHOLAS RANDALL MORRIS M.D.
Psychiatry & Neurology (Psychiatry)
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-7000
SHIN SHAN CHO
Dietitian, Registered
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-9022
BRENDA JACKSON LMFT
Marriage & Family Therapist
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-2918
JEFFREY JON METER MD
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-7324
DR. DAVID SIEGEL M.D.
Internal Medicine
10535 HOSPITAL WAY
MATHER, CA 95655
Sacramento County (916) 843-7096

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 Tracy Masi's NPI number?

The NPI number for Tracy Masi is 1144852393. It was assigned to this individual provider in the NPPES registry on February 5, 2020.

Where is Tracy Masi located?

Tracy Masi practices at 10535 Hospital Way, Mather, CA 95655. The listed phone number is (916) 843-7000.

What is Tracy Masi's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Tracy Masi was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.