Psychologist | Clinical Psychology

Dr. Kathryn Mary O'brien, PSY.D.

166 Defense Hwy, Annapolis, Maryland, 21401-8919

About Dr. Kathryn Mary O'brien

Dr. Kathryn Mary O'brien is a psychologist based in Annapolis, Maryland who is specialized in Clinical Psychology. Active license number of Dr. Kathryn Mary O'brien is 07080 for Clinical Psychology in Maryland. Her current practice location is 166 Defense Hwy, Annapolis. Patients can contact her at 410-684-3806. Dr. Kathryn Mary O'brien, PSY.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1083289938.

Dr. Kathryn Mary O'brien 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. Kathryn Mary O'brien'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. Kathryn Mary O'brien
Specialization Clinical Psychology
Credentials PSY.D.
Gender Female
Practice Address: 166 Defense Hwy,
Annapolis, MD - 21401-8919

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 Number1083289938
NPI Enumeration Date: 24 May, 2021
NPI Last Update On: 09 Jul, 2024

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. Kathryn Mary O'brien are as mentioned below.

License NumberSpecializationStateStatus
07080Clinical 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. Kathryn Mary O'brien
3400 Saratoga Ave,
Annapolis, MD - 21403-4929
Phone: 443-994-7427

Book an Appointment with Dr. Kathryn Mary O'brien

To schedule an appointment, contact Dr. Kathryn Mary O'brien at 166 Defense Hwy, Annapolis, Maryland or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Kathryn Mary O'brien:

Dr. Kathryn Mary O'brien 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. Kathryn Mary O'brien 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. Kathryn Mary O'brien practices at 166 Defense Hwy, Annapolis, Maryland, 21401-8919.

To schedule an appointment with Dr. Kathryn Mary O'brien, please contact the office at 410-684-3806.

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