Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Colleen Serena O'Byrne, PSYD

Individual provider Clinical Psychologist · NPI 1194967935

Dr. Colleen Serena O'Byrne, PSYD is a Clinical Psychologist in Washington, District of Columbia. Practices as a sole proprietor. Licensed in District of Columbia and Virginia.

Licensed in
DC, VA
In the registry since
2009
Specialties on file
2
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

2700 Martin Luther King Jr Ave SE
Washington, DC 20032-2601
Phone: (202) 645-8739
Fax: (202) 645-8798
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Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 0810004057 (VA)
Clinical Psychologist Taxonomy 103TC0700X · Licence PSY1000541 (DC)

Record details

NPI number1194967935
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedMarch 25, 2009
Last updated in NPPESMarch 25, 2009

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