Psychologist | Clinical Psychology

Dr. Hollis Cheong Tsoi, PSY.D.

5838 Edison Pl Ste 100, Carlsbad, California, 92008-5520

About Dr. Hollis Cheong Tsoi

Dr. Hollis Cheong Tsoi is a psychologist based in Carlsbad, California who is specialized in Clinical Psychology. Active license number of Dr. Hollis Cheong Tsoi is 30778 for Clinical Psychology in California. His current practice location is 5838 Edison Pl Ste 100, Carlsbad. Patients can contact him at 626-272-4967. Dr. Hollis Cheong Tsoi, PSY.D., specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1588919377.

Dr. Hollis Cheong Tsoi is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Dr. Hollis Cheong Tsoi's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Dr. Hollis Cheong Tsoi
Specialization Clinical Psychology
Credentials PSY.D.
Gender Male
Practice Address: 5838 Edison Pl Ste 100,
Carlsbad, CA - 92008-5520

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1588919377
NPI Enumeration Date: 17 Jul, 2012
NPI Last Update On: 21 Jul, 2025

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Dr. Hollis Cheong Tsoi are as mentioned below.

License NumberSpecializationStateStatus
30778Clinical Psychology CaliforniaPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Dr. Hollis Cheong Tsoi
Po Box 2441,
San Gabriel, CA - 91778-2441
Phone: 626-272-4967

Book an Appointment with Dr. Hollis Cheong Tsoi

To schedule an appointment, contact Dr. Hollis Cheong Tsoi at 5838 Edison Pl Ste 100, Carlsbad, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Hollis Cheong Tsoi:

Dr. Hollis Cheong Tsoi is a psychologist specializing in Clinical Psychology. He is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Dr. Hollis Cheong Tsoi is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Dr. Hollis Cheong Tsoi practices at 5838 Edison Pl Ste 100, Carlsbad, California, 92008-5520.

To schedule an appointment with Dr. Hollis Cheong Tsoi, please contact the office at 626-272-4967.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.