I thought Canada had a civilized healthcare system (unlike the USA). You still need to deal with fuckers like Blue Cross?
You certainly don't HAVE to deal with Blue Cross or any other provider, it's all part of extended medical plans (usually provided through employers) which cover expenses above and beyond what the government healthcare covers.
For instance, currently I don't have any additional coverage through my employer or school and can still walk into a hospital or clinic and receive all my treatment for essentially free (barring some exceptions, like small fees for crutches, slings, fiberglass instead of plaster casts or whatever). If, however, I need to get a course of anti-biotics or prescription pain killers for the next few weeks, I'm paying at the pharmacy for that.
Basically, any emergency (use the term lightly) care you may need is pretty much completely covered. I used to hate going to the clinic or doctor, and then I realized I'm paying for the shit anyways. If there's no line I'll walk in there and tell them I have had something in my eye for the last couple days and just want to make sure it's not metallic or get them to check out a strange spot on my dick and then not give a shit when they decide to freeze that mofo, because hey...it's free. Depending on where you live, you may or may not have to pay a monthly premium to the government for coverage. In BC I pay roughly $60 a month. They also suck balls at billing you correctly/on time and totally fuck up all the time, but they also can't deny you coverage based on the fact that you owe them money. Which is good because I owe roughly $300 right now because I moved, they stopped automatically withdrawing, and I had no idea because I wasn't getting invoices.
Most people with decent jobs (depending on your industry) will have extended coverage. This will cover preventative visits (such as a yearly physical...which is something like $100 otherwise), vision, dental, prescription costs, and whatever else. The extended coverage I had also covered travel insurance and extended leave...so that should I be injured to the point where I can't work for 6 months or so, they'll cover something like 60% of my income. This usually varies in cost depending on how much your employer is willing to cover, how much you make, and what your company premiums are. It's nice, but by no means necessary at all.
Interestingly, with dental not being covered people use all kinds of workarounds. Wisdom teeth bothering you? Don't go to the dentist - go to the ER...you might save yourself a grand (note, they won't actually pull your teeth, they'll just refer you). Same goes for cosmetic shit like (some) skin issues and such. Don't just call a dermatologist up and make an appointment, go to your doctor or a clinic and get a referral. BANG! You're probably going to get your shit for free.
Also, from my experience with dealing with Pacific Blue Cross and Blue Shield, they're actually super easy going for us. I suppose because the extended medical market in Canada is fairly competitive (I guess?) and 99.9% of people with coverage are covered under giant group packages. If they're being a bitch about their claims most package managers would probably just switch providers. I guess it's because it's a luxury up here rather than a necessity and they never really have you by the balls at all.