Psychologist | Clinical Psychology

Dr. William Peter Haddad, PHD

340 Main St, Worcester, Massachusetts, 01608-1604

About Dr. William Peter Haddad

Dr. William Peter Haddad is a psychologist based in Worcester, Massachusetts who is specialized in Clinical Psychology. Active license number of Dr. William Peter Haddad is 7119 for Clinical Psychology in Massachusetts. His current practice location is 340 Main St, Worcester. Patients can contact him at 508-926-0070. Dr. William Peter Haddad, PHD, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1578772430.

Dr. William Peter Haddad 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

Dr. William Peter Haddad'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. William Peter Haddad
Specialization Clinical Psychology
Credentials PHD
Gender Male
Practice Address: 340 Main St,
Worcester, MA - 01608-1604

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 Number1578772430
NPI Enumeration Date: 21 May, 2007
NPI Last Update On: 08 Jul, 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 Dr. William Peter Haddad are as mentioned below.

License NumberSpecializationStateStatus
7119Clinical Psychology MassachusettsPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Dr. William Peter Haddad
203 Delmont Ave,
Worcester, MA - 01604-3205
Phone: 508-755-3761

Book an Appointment with Dr. William Peter Haddad

To schedule an appointment, contact Dr. William Peter Haddad at 340 Main St, Worcester, Massachusetts or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. William Peter Haddad:

Dr. William Peter Haddad 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, Dr. William Peter Haddad 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. William Peter Haddad practices at 340 Main St, Worcester, Massachusetts, 01608-1604.

To schedule an appointment with Dr. William Peter Haddad, please contact the office at 508-926-0070.

Reviews & Feedback

Have you visited Dr. William Peter Haddad? Share your experience to help others looking for a psychologist in Worcester, MA.

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