Psychologist | Clinical Psychology

Leland W Petersen, CP

11 Beechwood Dr, Glen Head, New York, 11545-1101

About Leland W Petersen

Leland W Petersen is a psychologist based in Glen Head, New York who is specialized in Clinical Psychology. Active license number of Leland W Petersen is 05430 for Clinical Psychology in New York. His current practice location is 11 Beechwood Dr, Glen Head. Patients can contact him at 516-671-7509. Leland W Petersen, CP, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1790902229.

Leland W Petersen 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Leland W Petersen'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 Leland W Petersen
Specialization Clinical Psychology
Credentials CP
Gender Male
Practice Address: 11 Beechwood Dr,
Glen Head, NY - 11545-1101

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 Number1790902229
NPI Enumeration Date: 19 Apr, 2007
NPI Last Update On: 31 Oct, 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 Leland W Petersen are as mentioned below.

License NumberSpecializationStateStatus
05430Clinical 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.

Leland W Petersen
11 Beechwood Dr,
Glen Head, NY - 11545-1101
Phone: 516-671-7509

Book an Appointment with Leland W Petersen

To schedule an appointment, contact Leland W Petersen at 11 Beechwood Dr, Glen Head, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Leland W Petersen:

Leland W Petersen is a psychologist specializing in Clinical Psychology. He 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Leland W Petersen 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.

Leland W Petersen practices at 11 Beechwood Dr, Glen Head, New York, 11545-1101.

To schedule an appointment with Leland W Petersen, please contact the office at 516-671-7509.

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