Psychologist | General Psychology

Dr. John Leso, PH.D.

6723 Whittier Ave, Mc Lean, Virginia, 22101-4522

About Dr. John Leso

Dr. John Leso is a psychologist based in Mc Lean, Virginia who is specialized in General Psychology. Active license number of Dr. John Leso is 08100055555 for Clinical Psychology in Virginia. His current practice location is 6723 Whittier Ave, Mc Lean. Patients can contact him at 703-475-6478. Dr. John Leso, PH.D., specializes in General Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1053835785.

Dr. John Leso is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Practice Information

Dr. John Leso'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. John Leso
Specialization General Psychology
Credentials PH.D.
Gender Male
Practice Address: 6723 Whittier Ave,
Mc Lean, VA - 22101-4522

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 Number1053835785
NPI Enumeration Date: 03 Aug, 2017
NPI Last Update On: 06 Jun, 2022

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. John Leso are as mentioned below.

License NumberSpecializationStateStatus
08100055555Clinical Psychology VirginiaPrimary
013429-1General Psychology New YorkSecondary

Other Medical Identifiers

Other professional identifiers associated with Dr. John Leso such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
0810005555OtherVirginiaCLINICAL PSYCHOLOGY LICENSE

Mailing Address

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

Dr. John Leso
120 Homewood Rd,
Linthicum, MD - 21090-2604
Phone: 202-412-2970

Book an Appointment with Dr. John Leso

To schedule an appointment, contact Dr. John Leso at 6723 Whittier Ave, Mc Lean, Virginia or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. John Leso:

Dr. John Leso 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. John Leso 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. John Leso practices at 6723 Whittier Ave, Mc Lean, Virginia, 22101-4522.

To schedule an appointment with Dr. John Leso, please contact the office at 703-475-6478.

Reviews & Feedback

Have you visited Dr. John Leso? Share your experience to help others looking for a psychologist in Mc Lean, VA.

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