Psychologist | Clinical Psychology

Dr. Joseph Thomas Costello, PH.D.

50 Sequams Ln W, West Islip, New York, 11795-4527

About Dr. Joseph Thomas Costello

Dr. Joseph Thomas Costello is a psychologist based in West Islip, New York who is specialized in Clinical Psychology. Active license number of Dr. Joseph Thomas Costello is 009827 for Clinical Psychology in New York. His current practice location is 50 Sequams Ln W, West Islip. Patients can contact him at 631-669-8230. Dr. Joseph Thomas Costello, PH.D., specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1245573682.

Dr. Joseph Thomas Costello 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. Joseph Thomas Costello'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. Joseph Thomas Costello
Specialization Clinical Psychology
Credentials PH.D.
Gender Male
Practice Address: 50 Sequams Ln W,
West Islip, NY - 11795-4527

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 Number1245573682
NPI Enumeration Date: 04 Apr, 2013
NPI Last Update On: 04 Apr, 2013

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. Joseph Thomas Costello are as mentioned below.

License NumberSpecializationStateStatus
009827Clinical Psychology New YorkPrimary

Mailing Address

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

Dr. Joseph Thomas Costello
50 Sequams Ln W,
West Islip, NY - 11795-4527
Phone: 631-669-8230

Book an Appointment with Dr. Joseph Thomas Costello

To schedule an appointment, contact Dr. Joseph Thomas Costello at 50 Sequams Ln W, West Islip, New York or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Joseph Thomas Costello:

Dr. Joseph Thomas Costello 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. Joseph Thomas Costello 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. Joseph Thomas Costello practices at 50 Sequams Ln W, West Islip, New York, 11795-4527.

To schedule an appointment with Dr. Joseph Thomas Costello, please contact the office at 631-669-8230.

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