Psychologist | Clinical Psychology

Larissa Portnoff

5 Union Sq W # 1478, New York, New York, 10003-3306

About Larissa Portnoff

Larissa Portnoff is a psychologist based in New York, New York who is specialized in Clinical Psychology. Active license number of Larissa Portnoff is 110582-01 for Clinical Psychology in New York. Her current practice location is 5 Union Sq W # 1478, New York. Patients can contact her at 347-470-7760. Larissa Portnoff NPI number (Unique professional ID assigned by NPPES) is 1043986664.

Larissa Portnoff 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.

Practice Information

Larissa Portnoff'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 Larissa Portnoff
Specialization Clinical Psychology
Gender Female
Practice Address: 5 Union Sq W # 1478,
New York, NY - 10003-3306

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 Number1043986664
NPI Enumeration Date: 23 Aug, 2021
NPI Last Update On: 08 Jul, 2026

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 Larissa Portnoff are as mentioned below.

License NumberSpecializationStateStatus
110582-01Clinical 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.

Larissa Portnoff
5 Union Sq W # 1478,
New York, NY - 10003-3306
Phone: 347-470-7760

Book an Appointment with Larissa Portnoff

To schedule an appointment, contact Larissa Portnoff at 5 Union Sq W # 1478, New York, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Larissa Portnoff:

Larissa Portnoff 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, Larissa Portnoff 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.

Larissa Portnoff practices at 5 Union Sq W # 1478, New York, New York, 10003-3306.

To schedule an appointment with Larissa Portnoff, please contact the office at 347-470-7760.

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