Psychologist | Clinical Psychology

John Joseph Guerin, PH.D.

426 Pennsylvania Ave, Suite 115, Fort Washington, Pennsylvania, 19034-3410

About John Joseph Guerin

John Joseph Guerin is a psychologist based in Fort Washington, Pennsylvania who is specialized in Clinical Psychology. Active license number of John Joseph Guerin is PS-004341-L for Clinical Psychology in Pennsylvania. His current practice location is 426 Pennsylvania Ave, Suite 115, Fort Washington. Patients can contact him at 215-628-8800 or can fax him at 215-699-1554. John Joseph Guerin, PH.D., specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1972931806.

John Joseph Guerin 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

John Joseph Guerin'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 John Joseph Guerin
Specialization Clinical Psychology
Credentials PH.D.
Gender Male
Practice Address: 426 Pennsylvania Ave, Suite 115
Fort Washington, PA - 19034-3410
Fax 215-699-1554

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 Number1972931806
NPI Enumeration Date: 01 Nov, 2013
NPI Last Update On: 01 Nov, 2013

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 John Joseph Guerin are as mentioned below.

License NumberSpecializationStateStatus
PS-004341-LClinical Psychology PennsylvaniaPrimary
SI-00003704Clinical Psychology New JerseySecondary

Mailing Address

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

John Joseph Guerin
426 Pennsylvania Ave, Suite 115
Fort Washington, PA - 19034-3410
Phone: 215-628-8800
Fax: 215-699-1554

Book an Appointment with John Joseph Guerin

To schedule an appointment, contact John Joseph Guerin at 426 Pennsylvania Ave, Suite 115, Fort Washington, Pennsylvania or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about John Joseph Guerin:

John Joseph Guerin 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, John Joseph Guerin 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.

John Joseph Guerin practices at 426 Pennsylvania Ave, Suite 115, Fort Washington, Pennsylvania, 19034-3410.

To schedule an appointment with John Joseph Guerin, please contact the office at 215-628-8800.

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