Psychologist | Adult Development & Aging Psychology

Dr. Mary Anne Hanley Geskie, PH.D.

500 Montauk Hwy, Suite Z, West Islip, New York, 11795-4418

About Dr. Mary Anne Hanley Geskie

Dr. Mary Anne Hanley Geskie is a psychologist based in West Islip, New York who is specialized in Adult Development & Aging Psychology. Active license number of Dr. Mary Anne Hanley Geskie is 008795 for Clinical Psychology in New York. Her current practice location is 500 Montauk Hwy, Suite Z, West Islip. Patients can contact her at 631-422-5952 or can fax her at 631-472-1817. Dr. Mary Anne Hanley Geskie, PH.D., specializes in Adult Development & Aging Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1861485583.

Dr. Mary Anne Hanley Geskie provide support to individuals at all points of life who are facing developmental issues or problems related to aging.
Adult development & aging psychologist help patients to deal with motor skill development, language acquisition, emotional development, the emergence of self-awareness and self-concept, cognitive development during childhood and throughout life, social and cultural influences on child development, personality development, moral reasoning, developmental challenges and learning disabilities.

Practice Information

Dr. Mary Anne Hanley Geskie'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 Anne Hanley Geskie
Specialization Adult Development & Aging Psychology
Credentials PH.D.
Gender Female
Practice Address: 500 Montauk Hwy, Suite Z
West Islip, NY - 11795-4418
Fax 631-472-1817

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 Number1861485583
NPI Enumeration Date: 28 Aug, 2005
NPI Last Update On: 13 Aug, 2010

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 Anne Hanley Geskie are as mentioned below.

License NumberSpecializationStateStatus
008795Clinical Psychology New YorkPrimary
008795Adult Development & Aging Psychology New YorkSecondary
008795Cognitive & Behavioral Psychology New YorkSecondary
008795Clinical Child & Adolescent Psychology New YorkSecondary
008795Psychoanalysis New YorkSecondary
008795General Psychology New YorkSecondary

Other Medical Identifiers

Other professional identifiers associated with Dr. Mary Anne Hanley Geskie such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
02145393MedicaidNew York
0048459OtherNew YorkVALUE OPTIONS ID NUMBER

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 Anne Hanley Geskie
7 Saltmeadow Ct,
Bayport, NY - 11705-2205
Phone: 631-472-6048
Fax: 631-472-1817

Book an Appointment with Dr. Mary Anne Hanley Geskie

To schedule an appointment, contact Dr. Mary Anne Hanley Geskie at 500 Montauk Hwy, Suite Z, West Islip, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Mary Anne Hanley Geskie:

Dr. Mary Anne Hanley Geskie is a psychologist specializing in Clinical Psychology. She 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). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Dr. Mary Anne Hanley Geskie 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 Anne Hanley Geskie practices at 500 Montauk Hwy, Suite Z, West Islip, New York, 11795-4418.

To schedule an appointment with Dr. Mary Anne Hanley Geskie, please contact the office at 631-422-5952.

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