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

Dan Patrick O'Brien, DDS

Individual provider Public Health Dentistry · NPI 1598826109

Dan Patrick O'Brien, DDS is a Public Health Dentistry in Arnold, Missouri. Licensed in Missouri. Registered with an NPI since 2006.

Licensed in
MO
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 →

Claim this listing Report a problem Suggest an edit

Practice location Partly verified

Some contact details are missing from the federal record.

Jefferson County Health Dept 1818 Lonedell Road
Arnold, MO 63010
Phone: (636) 282-1010
Fax: (636) 282-2525
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Public Health Dentistry (primary) Taxonomy 1223D0001X · Licence 010402 (MO)

Record details

NPI number1598826109
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedDecember 13, 2006
Last updated in NPPESJuly 8, 2007

Other providers in Arnold