Orleans Express Montreal Station
 

When I google OE Montreal Station, I get two addresses. One is 740 Notre-Dame Street West Suite 1000, Montreal, the other is 1717 Berri St, Montreal, are there 2 stations or if one which one is the station for the bus to Quebec City?

The Gare d'autocars de Montréal (English: Montreal Coach Terminal) is indeed at 1717 Berri St. on the east side of Montreal. Wikipedia has a photo http://en.wikipedia.org/wiki/Gare_d%..._Montr%C3%A9al
The Berri Metro station is a major intersection on the subway system. The new building is quite a sprawl, from Maisonneuve Blvd. north to Ontario Street.

The Orleans Express bus to Quebec City indeed leaves from the terminal near the corner of Berri & Ontario Streets in Montreal.

Thank you very much to both of you for your responses. My anxiety level has decreased.

The 10th floor of 740 Notre Dame West is where Orleans Express parks its executives and the executives of its parent company, Keolis Canada.