DR. HOLLIS CHEONG TSOI PSY.D.
NPI 1588919377
Psychologist - Clinical in Carlsbad, CA

Q: What is Hollis Tsoi's NPI number?

The NPI number for Hollis Tsoi is 1588919377. It was assigned to this individual provider in the NPPES registry on July 17, 2012.

Q: What is Hollis Tsoi's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Hollis Tsoi was last updated on July 21, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since July 17, 2012

5838 EDISON PL STE 100, CARLSBAD, CA 92008(626) 272-4967 Get Directions Write a Review

NPPES record last updated: July 21, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Mar 5, 2019, Nov 24, 2015, Nov 13, 2015 (3 updates tracked since 2015).

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About Dr. Hollis Cheong Tsoi Psy.d. NPPES

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

DR. HOLLIS CHEONG TSOI PSY.D. (NPI 1588919377) is an individual clinical provider in Carlsbad, California, licensed in California (30778) and active in the NPI registry since July 2012.

NPPES Registry Identity

NPI1588919377

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. HOLLIS CHEONG TSOICredential: PSY.D.

Location Address5838 EDISON PL STE 100Carlsbad, CA 92008-5520

Mailing AddressPo Box 2441San Gabriel, CA 91778-2441 · (626) 272-4967

Phone(626) 272-4967

Sole ProprietorYes

Enumeration DateJuly 17, 2012

Last NPPES UpdateJuly 21, 20253 updates tracked since enumeration

NPPES CertifiedJuly 21, 2025

✔ NPI 1588919377 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 CA · 30778

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.

5838 EDISON PL STE 100, Carlsbad, CA 92008

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