Psychologist | Clinical Psychology

William Holland, PHD

300 Central Park W Apt 1c, New York, New York, 10024-1590

About William Holland

William Holland is a psychologist based in New York, New York who is specialized in Clinical Psychology. Active license number of William Holland is 028118 for Clinical Psychology in New York. His current practice location is 300 Central Park W Apt 1c, New York. Patients can contact him at 917-848-0305. William Holland, PHD, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1265373203.

William Holland 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

William Holland'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 William Holland
Specialization Clinical Psychology
Credentials PHD
Gender Male
Practice Address: 300 Central Park W Apt 1c,
New York, NY - 10024-1590

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 Number1265373203
NPI Enumeration Date: 03 Apr, 2026
NPI Last Update On: 03 Apr, 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 William Holland are as mentioned below.

License NumberSpecializationStateStatus
028118Clinical 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.

William Holland
300 Central Park W Apt 1c,
New York, NY - 10024-1590

Book an Appointment with William Holland

To schedule an appointment, contact William Holland at 300 Central Park W Apt 1c, New York, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about William Holland:

William Holland 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, William Holland 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.

William Holland practices at 300 Central Park W Apt 1c, New York, New York, 10024-1590.

To schedule an appointment with William Holland, please contact the office at 917-848-0305.

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