Psychologist | Clinical Psychology

Dr. William Johnston, PSYD

316 Warren Ave, Front Royal, Virginia, 22630-4483

About Dr. William Johnston

Dr. William Johnston is a psychologist based in Front Royal, Virginia who is specialized in Clinical Psychology. Active license number of Dr. William Johnston is 0805002661 for Clinical Psychology in Virginia. His current practice location is 316 Warren Ave, Front Royal. Patients can contact him at 202-670-2407. Dr. William Johnston, PSYD, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1588457626.

Dr. William Johnston 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 Johnston'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 Johnston
Specialization Clinical Psychology
Credentials PSYD
Gender Male
Practice Address: 316 Warren Ave,
Front Royal, VA - 22630-4483

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 Number1588457626
NPI Enumeration Date: 22 May, 2025
NPI Last Update On: 27 Jun, 2025

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 Johnston are as mentioned below.

License NumberSpecializationStateStatus
0805002661Clinical Psychology VirginiaPrimary

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 Johnston
Northwest Registered Agent Llc, 8401 Mayland Drive Ste A
Richmond, VA - 23294-4483
Phone: 202-670-2407

Book an Appointment with Dr. William Johnston

To schedule an appointment, contact Dr. William Johnston at 316 Warren Ave, Front Royal, Virginia or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. William Johnston:

Dr. William Johnston 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 Johnston 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 Johnston practices at 316 Warren Ave, Front Royal, Virginia, 22630-4483.

To schedule an appointment with Dr. William Johnston, please contact the office at 202-670-2407.

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