Psychologist | Clinical Psychology

Dr. O'neal Alfred Walker

6237 Executive Blvd, Rockville, Maryland, 20852-3906

About Dr. O'neal Alfred Walker

Dr. O'neal Alfred Walker is a psychologist based in Rockville, Maryland who is specialized in Clinical Psychology. Active license number of Dr. O'neal Alfred Walker is 04000 for Clinical Psychology in Maryland. His current practice location is 6237 Executive Blvd, Rockville. Patients can contact him at 240-426-5859 or can fax him at 301-972-1318. Dr. O'neal Alfred Walker NPI number (Unique professional ID assigned by NPPES) is 1336419563.

Dr. O'neal Alfred Walker 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. O'neal Alfred Walker'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. O'neal Alfred Walker
Specialization Clinical Psychology
Gender Male
Practice Address: 6237 Executive Blvd,
Rockville, MD - 20852-3906
Fax 301-972-1318

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 Number1336419563
NPI Enumeration Date: 04 Jan, 2012
NPI Last Update On: 13 Feb, 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. O'neal Alfred Walker are as mentioned below.

License NumberSpecializationStateStatus
04000Clinical Psychology MarylandPrimary

Mailing Address

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

Dr. O'neal Alfred Walker
Cmr 402 Box 16,
Apo, AE - 09180-1001

Book an Appointment with Dr. O'neal Alfred Walker

To schedule an appointment, contact Dr. O'neal Alfred Walker at 6237 Executive Blvd, Rockville, Maryland or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. O'neal Alfred Walker:

Dr. O'neal Alfred Walker 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. O'neal Alfred Walker 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. O'neal Alfred Walker practices at 6237 Executive Blvd, Rockville, Maryland, 20852-3906.

To schedule an appointment with Dr. O'neal Alfred Walker, please contact the office at 240-426-5859.

Reviews & Feedback

Have you visited Dr. O'neal Alfred Walker? Share your experience to help others looking for a psychologist in Rockville, MD.

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