Psychologist | General Psychology

Dr. Steven Mattis, PH.D.

34 S Broadway, Suite 100, White Plains, New York, 10601-4400

About Dr. Steven Mattis

Dr. Steven Mattis is a psychologist based in White Plains, New York who is specialized in General Psychology. Active license number of Dr. Steven Mattis is 003294-0 for General Psychology in New York. His current practice location is 34 S Broadway, Suite 100, White Plains. Patients can contact him at 914-997-5151 or can fax him at 914-997-0333. Dr. Steven Mattis, PH.D., specializes in General Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1285839324.

Dr. Steven Mattis 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. Steven Mattis'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. Steven Mattis
Specialization General Psychology
Credentials PH.D.
Gender Male
Practice Address: 34 S Broadway, Suite 100
White Plains, NY - 10601-4400
Fax 914-997-0333

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 Number1285839324
NPI Enumeration Date: 19 Jun, 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. Steven Mattis are as mentioned below.

License NumberSpecializationStateStatus
003294-0General 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. Steven Mattis
34 S Broadway, Suite 100
White Plains, NY - 10601-4400
Phone: 914-997-5151
Fax: 914-997-0333

Book an Appointment with Dr. Steven Mattis

To schedule an appointment, contact Dr. Steven Mattis at 34 S Broadway, Suite 100, White Plains, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Steven Mattis:

Dr. Steven Mattis 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.

Yes, Dr. Steven Mattis 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. Steven Mattis practices at 34 S Broadway, Suite 100, White Plains, New York, 10601-4400.

To schedule an appointment with Dr. Steven Mattis, please contact the office at 914-997-5151.

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