Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Dennis Sophian O'Leary, DDS

Individual provider General Practice Dentistry · NPI 1225184229

Dr. Dennis Sophian O'Leary, DDS is a General Practice Dentistry in Washington, District of Columbia. Licensed in District of Columbia. Registered with an NPI since 2007.

Licensed in
DC
In the registry since
2007
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

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Practice location Address checks out

5840 Macarthur Blvd NW
Washington, DC 20016-2542
Phone: (202) 966-8108
Fax: (202) 966-8106
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence 5817 (DC)

Record details

NPI number1225184229
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedJanuary 25, 2007
Last updated in NPPESJuly 8, 2007

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