Psychologist | Clinical Psychology

Dr. Long Tuan On, PSY.D.

35 Pinewood Ct, Walnut Creek, California, 94597-3111

About Dr. Long Tuan On

Dr. Long Tuan On is a psychologist based in Walnut Creek, California who is specialized in Clinical Psychology. Active license number of Dr. Long Tuan On is 34774 for Clinical Psychology in California. His current practice location is 35 Pinewood Ct, Walnut Creek. Patients can reach him at 408-547-7736. Dr. Long Tuan On is PSY.D. in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1053627117.

Dr. Long Tuan On 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. Long Tuan On speciality, 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. Long Tuan On
Specialization Clinical Psychology
Credentials PSY.D.
Gender Male
Practice Address: 35 Pinewood Ct,
Walnut Creek, CA - 94597-3111

Professional Identification Codes

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

NPI Number1053627117
NPI Enumeration Date: 27 Aug, 2010
NPI Last Update On: 25 Apr, 2025

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Long Tuan On are as mentioned below.

License NumberSpecializationStateStatus
34774Clinical 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. Long Tuan On
35 Pinewood Ct,
Walnut Creek, CA - 94597-3111
Phone: 408-547-7736

Book an Appointment with Dr. Long Tuan On

To schedule an appointment, contact Dr. Long Tuan On at 35 Pinewood Ct, Walnut Creek, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Long Tuan On:

Dr. Long Tuan On 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. Long Tuan On is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Dr. Long Tuan On practices at 35 Pinewood Ct, Walnut Creek, California, 94597-3111.

To schedule an appointment with Dr. Long Tuan On, please contact the office at 408-547-7736.

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