You do not have to manually parse addresses. ArcGIS provides tools for Geocoding your addresses. Please view the following documentation on geocoding using ArcObjects; you will also need to understand how geocoding works in ArcGIS Desktop before attempting to do it using ArcObjects:
IGeocodeServer
http://resources.arcgis.com/en/help/arcobjects-net/componenthelp/index.html#//00310000005z000000
Geocode Services
Programming with Server Objects
http://resources.arcgis.com/en/help/arcobjects-net/componenthelp/index.html#//00310000005z000000
Server (Search for "Geocode" within this help page)
http://resources.arcgis.com/en/help/arcobjects-net/componenthelp/index.html#//003z0000011v000000
ArcGIS Desktop Help - What is Geocoding?
http://resources.arcgis.com/en/help/main/10.2/index.html#/What_is_geocoding/002500000001000000/
ArcGIS Server Help - Geocode Services
http://resources.arcgis.com/en/help/main/10.2/index.html#//01540000035t000000