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

Dr. Mark A. O'Hara, DDS

Individual provider General Practice Dentistry · NPI 1437223021

Dr. Mark A. O'Hara, DDS is a General Practice Dentistry in Eugene, Oregon. Practices as a sole proprietor. Licensed in Indiana.

Licensed in
IN
In the registry since
2006
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.

See every abbreviation used in this directory →

Practice location Address checks out

27 W 17th Ave
Eugene, OR 97401-4012
Phone: (541) 344-0413
Fax: (541) 344-3657
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence 5660 (IN)

Record details

NPI number1437223021
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedNovember 17, 2006
Last updated in NPPESJuly 8, 2007
Mailing address27 W 17th Ave, Eugene, OR 97401-4012

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