Psychologist | Cognitive & Behavioral Psychology

Dr. Lillian Comas-diaz, PH.D.

908 New Hampshire Ave Nw, Suite 700, Washington, District Of Columbia, 20037-2346

About Dr. Lillian Comas-diaz

Dr. Lillian Comas-diaz is a psychologist based in Washington, District Of Columbia who is specialized in Cognitive & Behavioral Psychology. Active license number of Dr. Lillian Comas-diaz is PSY1342 for Clinical Psychology in District Of Columbia. Her current practice location is 908 New Hampshire Ave Nw, Suite 700, Washington. Patients can contact her at 202-775-1938. Dr. Lillian Comas-diaz, PH.D., specializes in Cognitive & Behavioral Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1851512792.

Dr. Lillian Comas-diaz has variety of professional responsibilities, including assessment (identifying, diagnosing, and conceptualizing problems experienced by individuals or groups), intervention (creating, implementing and evaluating interventions designed to induce positive change) and consultation. Cognitive Behavioral Psychologists also participates in research, education, training, and clinical practice including a range of issues and populations.

Practice Information

Dr. Lillian Comas-diaz'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. Lillian Comas-diaz
Specialization Cognitive & Behavioral Psychology
Credentials PH.D.
Gender Female
Practice Address: 908 New Hampshire Ave Nw, Suite 700
Washington, DC - 20037-2346

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 Number1851512792
NPI Enumeration Date: 01 May, 2007
NPI Last Update On: 17 Jan, 2014

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. Lillian Comas-diaz are as mentioned below.

License NumberSpecializationStateStatus
PSY1342Clinical Psychology District Of ColumbiaPrimary
PSY1342Cognitive & Behavioral Psychology District Of ColumbiaSecondary

Mailing Address

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

Dr. Lillian Comas-diaz
908 New Hampshire Ave Nw, Suite 700
Washington, DC - 20037-2346
Phone: 202-775-1938

Book an Appointment with Dr. Lillian Comas-diaz

To schedule an appointment, contact Dr. Lillian Comas-diaz at 908 New Hampshire Ave Nw, Suite 700, Washington, District Of Columbia or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Lillian Comas-diaz:

Dr. Lillian Comas-diaz 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. Lillian Comas-diaz 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. Lillian Comas-diaz practices at 908 New Hampshire Ave Nw, Suite 700, Washington, District Of Columbia, 20037-2346.

To schedule an appointment with Dr. Lillian Comas-diaz, please contact the office at 202-775-1938.

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