Psychologist | General Psychology | 34+ years experience

Dr. Mark Sisti, PH.D.

32 Arbor Ridge Ln, South Setauket, New York, 11720-1405

About Dr. Mark Sisti

Dr. Mark Sisti is a psychologist based in South Setauket, New York with 34 years of experience in General Psychology. He completed his graduation in 1992. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Mark Sisti is 011538 for General Psychology in New York. His current practice location is 32 Arbor Ridge Ln, South Setauket. Patients can contact him at 631-696-2896 or can fax him at 631-696-2896. Dr. Mark Sisti, PH.D., specializes in General Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1801937800.

Dr. Mark Sisti 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

Dr. Mark Sisti'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. Mark Sisti
Specialization General Psychology
Credentials PH.D.
Accepts Medicare Assignment Yes
Experience 34+ years
Graduation Year 1992
Gender Male
Practice Address: 32 Arbor Ridge Ln,
South Setauket, NY - 11720-1405
Fax 631-696-2896

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.

PAC ID 1254357486
Enrollment ID I20051018000370
NPI Number1801937800
NPI Enumeration Date: 11 Feb, 2007
NPI Last Update On: 08 Jul, 2007

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. Mark Sisti are as mentioned below.

License NumberSpecializationStateStatus
011538General 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. Mark Sisti
32 Arbor Ridge Ln,
South Setauket, NY - 11720-1405
Phone: 631-696-2896
Fax: 631-696-2896

Book an Appointment with Dr. Mark Sisti

To schedule an appointment, contact Dr. Mark Sisti at 32 Arbor Ridge Ln, South Setauket, New York or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Mark Sisti:

Dr. Mark Sisti is a psychologist specializing in General Psychology. He 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.

Dr. Mark Sisti has approximately 34 years of experience in General Psychology.

Yes, Dr. Mark Sisti accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Dr. Mark Sisti 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. Mark Sisti practices at 32 Arbor Ridge Ln, South Setauket, New York, 11720-1405.

To schedule an appointment with Dr. Mark Sisti, please contact the office at 631-696-2896.

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