Psychologist | General Psychology

Mr. Justin Castello, PH.D.

2222 Bancroft Way # Mc4300, Berkeley, California, 94720-4301

About Mr. Justin Castello

Mr. Justin Castello is a psychologist based in Berkeley, California who is specialized in General Psychology. Active license number of Mr. Justin Castello is PSY27747 for Clinical Psychology in California. His current practice location is 2222 Bancroft Way # Mc4300, Berkeley. Patients can contact him at 510-643-5808. Mr. Justin Castello, PH.D., specializes in General Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1912364720.

Mr. Justin Castello is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Practice Information

Mr. Justin Castello'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 Mr. Justin Castello
Specialization General Psychology
Credentials PH.D.
Gender Male
Practice Address: 2222 Bancroft Way # Mc4300,
Berkeley, CA - 94720-4301

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 Number1912364720
NPI Enumeration Date: 25 Jan, 2016
NPI Last Update On: 25 Jan, 2016

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 Mr. Justin Castello are as mentioned below.

License NumberSpecializationStateStatus
PSY27747Clinical Psychology CaliforniaPrimary
PSY27747General Psychology CaliforniaSecondary

Mailing Address

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

Mr. Justin Castello
2222 Bancroft Way # Mc4300,
Berkeley, CA - 94720-4301
Phone: 510-643-5808

Book an Appointment with Mr. Justin Castello

To schedule an appointment, contact Mr. Justin Castello at 2222 Bancroft Way # Mc4300, Berkeley, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mr. Justin Castello:

Mr. Justin Castello 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, Mr. Justin Castello 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.

Mr. Justin Castello practices at 2222 Bancroft Way # Mc4300, Berkeley, California, 94720-4301.

To schedule an appointment with Mr. Justin Castello, please contact the office at 510-643-5808.

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