Psychiatrist

Dr. Thomas Ryan O'leary, MD

4494 North Palmer Road, Bethesda, Maryland, 20889-0001

About Dr. Thomas Ryan O'leary

Dr. Thomas Ryan O'leary is a psychiatrist based in Bethesda, Maryland who is specialized in Psychiatry. Active license number of Dr. Thomas Ryan O'leary is 0101273858 for Psychiatry in Virginia. His current practice location is 4494 North Palmer Road, Bethesda. Patients can contact him at 301-295-0537. Dr. Thomas Ryan O'leary, MD, specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1699300814.

Dr. Thomas Ryan O'leary specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Practice Information

Dr. Thomas Ryan O'leary'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. Thomas Ryan O'leary
Specialization Psychiatry
Credentials MD
Gender Male
Practice Address: 4494 North Palmer Road,
Bethesda, MD - 20889-0001

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 Number1699300814
NPI Enumeration Date: 09 Mar, 2020
NPI Last Update On: 15 Jun, 2026

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. Thomas Ryan O'leary are as mentioned below.

License NumberSpecializationStateStatus
0101273858Psychiatry 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. Thomas Ryan O'leary
4494 North Palmer Road,
Bethesda, MD - 20889-0001
Phone: 301-295-0537

Book an Appointment with Dr. Thomas Ryan O'leary

To schedule an appointment, contact Dr. Thomas Ryan O'leary at 4494 North Palmer Road, Bethesda, Maryland or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Thomas Ryan O'leary:

Dr. Thomas Ryan O'leary is a psychiatrist specializing in Psychiatry. He specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Yes, Dr. Thomas Ryan O'leary 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. Thomas Ryan O'leary practices at 4494 North Palmer Road, Bethesda, Maryland, 20889-0001.

To schedule an appointment with Dr. Thomas Ryan O'leary, please contact the office at 301-295-0537.

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