Psychologist | Clinical Psychology

Dr. Allison Hahn Sidley, PSY.D.

3801 Fairfax Dr, Suite 61, Arlington, Virginia, 22203-1762

About Dr. Allison Hahn Sidley

Dr. Allison Hahn Sidley is a psychologist based in Arlington, Virginia who is specialized in Clinical Psychology. Active license number of Dr. Allison Hahn Sidley is 0810002632 for Clinical Psychology in Virginia. Her current practice location is 3801 Fairfax Dr, Suite 61, Arlington. Patients can contact her at 703-807-0454 or can fax her at 703-741-0163. Dr. Allison Hahn Sidley, PSY.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1669688578.

Dr. Allison Hahn Sidley 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

Dr. Allison Hahn Sidley'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. Allison Hahn Sidley
Specialization Clinical Psychology
Credentials PSY.D.
Gender Female
Practice Address: 3801 Fairfax Dr, Suite 61
Arlington, VA - 22203-1762
Fax 703-741-0163

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 Number1669688578
NPI Enumeration Date: 15 May, 2007
NPI Last Update On: 07 Mar, 2012

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. Allison Hahn Sidley are as mentioned below.

License NumberSpecializationStateStatus
0810002632Clinical 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. Allison Hahn Sidley
3801 Fairfax Dr, Suite 61
Arlington, VA - 22203-1762
Phone: 703-807-0454
Fax: 703-741-0163

Book an Appointment with Dr. Allison Hahn Sidley

To schedule an appointment, contact Dr. Allison Hahn Sidley at 3801 Fairfax Dr, Suite 61, Arlington, Virginia or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Allison Hahn Sidley:

Dr. Allison Hahn Sidley 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, Dr. Allison Hahn Sidley 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. Allison Hahn Sidley practices at 3801 Fairfax Dr, Suite 61, Arlington, Virginia, 22203-1762.

To schedule an appointment with Dr. Allison Hahn Sidley, please contact the office at 703-807-0454.

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