The Shu"t Beit Avi (5:56) was asked this question and concludes that one should call him up as "Abba Isaac ben Moses" (for example).
He says that by using the honorific "Abba" one alleviates the issue of calling one's parent by their first name (outlined in Shulchan Aruch YD 240:2). He notes that even though the Shulchan Aruch sounds like it is forbidden to do so, this can't be the proper read because many times in the gemara (as outlined in the Aruch HaShulchan YD 240:14-15) great rabbis referred to their parents by their first names. Rather, he argues, it is permissable to do so with a proper honorific.
Additionally, he notes that the longstanding custom in Yeshivot is to call up the Rosh HaYeshiva by his name with a title (eg Moreinu HaRav Shimon ben Moreinu HaRav Gamliel) even though a similar restriction regarding name calling applies to one's rabbis whom one must also honor (see Shulchan Aruch YD 242:1 and 242:15).
I note finally that such is the practice in my shul.
EDIT: The Sefer Dinei Kriyas HaTorah by Rabbi Naftali Hoffner seems to imply my way as well. Compare how he explains calling up a rabbi here with how he explains calling up a father here. Note the ellipses in both cases. (h/t @GershonGold)