Are you an expat living in Mexico? If the answer is yes, then here are 4 important questions about Mexican healthcare system that you may need answers to: 1) Can I use our existing US or Canadian health insurance plan in Mexico? The answer is yes. If you register with Lakeside Medical Group, you can enjoy full health coverage on your existing health plan. The group accepts more than 350 USA and Canada health policies. You can check our website for a list of plans.