Psychologist | General Psychology

Dr. Mary Karahalios, PSY.D.

8820 20th Ave, Brooklyn, New York, 11214-7304

About Dr. Mary Karahalios

Dr. Mary Karahalios is a psychologist based in Brooklyn, New York who is specialized in General Psychology. Active license number of Dr. Mary Karahalios is 014676 for General Psychology in New York. Her current practice location is 8820 20th Ave, Brooklyn. Patients can contact her at 718-265-0770. Dr. Mary Karahalios, PSY.D., specializes in General Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1467788133.

Dr. Mary Karahalios is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, she performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. She 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. Mary Karahalios'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. Mary Karahalios
Specialization General Psychology
Credentials PSY.D.
Gender Female
Practice Address: 8820 20th Ave,
Brooklyn, NY - 11214-7304

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 Number1467788133
NPI Enumeration Date: 30 Oct, 2009
NPI Last Update On: 30 Oct, 2009

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. Mary Karahalios are as mentioned below.

License NumberSpecializationStateStatus
014676General 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. Mary Karahalios
8820 20th Ave,
Brooklyn, NY - 11214-7304
Phone: 718-265-0770

Book an Appointment with Dr. Mary Karahalios

To schedule an appointment, contact Dr. Mary Karahalios at 8820 20th Ave, Brooklyn, New York or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Mary Karahalios:

Dr. Mary Karahalios is a psychologist specializing in General Psychology. She is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, she performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. She 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. Mary Karahalios 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. Mary Karahalios practices at 8820 20th Ave, Brooklyn, New York, 11214-7304.

To schedule an appointment with Dr. Mary Karahalios, please contact the office at 718-265-0770.

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