Psychology Clinic

Cornerstone Developmental Psychology

750 Vets Hwy, Suite 202, Hauppauge, New York, 11788-2943

About Cornerstone Developmental Psychology

Cornerstone Developmental Psychology is a psychology clinic located in Hauppauge, New York The clinic is located at 750 Vets Hwy, Suite 202, Hauppauge, can be reached at 631-925-1003. The authorized official for Cornerstone Developmental Psychology is Mark Closson, who serves as a Psychologist of the clinic and his/her contact number is 631-925-1003.

Cornerstone Developmental Psychology Clinic specialize in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, psychologists performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. Psychologists 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.

Clinic Information

Cornerstone Developmental Psychology Clinic's specialty, address, contact phone number and fax are as below. Patients can contact the clinic at the given phone number for appointments.

Clinic Name Cornerstone Developmental Psychology
Specialization Psychology
Practice Address 750 Vets Hwy, Suite 202
Hauppauge, NY - 11788-2943

Authorized/Official Person Profile:

Officially authorized person to contact for any management issues or complaints for this clinic are as below. Person's position and contact details are also mentioned below.

Name Mark Closson
Position Psychologist
Contact Number 631-925-1003

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 Number1336673318
NPI Enumeration Date: 17 Apr, 2017
NPI Last Update On: 17 Apr, 2017

Medical Licenses:

Organizations can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Cornerstone Developmental Psychology are as mentioned below.
License NumberSpecializationStateStatus
Psychologist Primary
Social Worker Secondary

Mailing Address

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

Cornerstone Developmental Psychology
750 Vets. Mem. Hwy., Suite 202
Hauppauge, NY - 11788-2943
Phone: 631-925-1003

Book an Appointment with Cornerstone Developmental Psychology

To schedule an appointment, contact Cornerstone Developmental Psychology at 750 Vets Hwy, Suite 202, Hauppauge, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Cornerstone Developmental Psychology:

Cornerstone Developmental Psychology is a psychology clinic specializing in Psychology.

Cornerstone Developmental Psychology is located at 750 Vets Hwy, Suite 202, Hauppauge, New York 11788-2943.

Patients can contact Cornerstone Developmental Psychology at 631-925-1003 for inquiries about its services and appointments.

Please contact Cornerstone Developmental Psychology directly to inquire about new-patient availability and appointment options.
* Availability may change.

Cornerstone Developmental Psychology specialize in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, psychologists performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. Psychologists 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.

Patients can contact Cornerstone Developmental Psychology at 631-925-1003 to inquire about appointments, consultation requirements and available services.

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