In a mixing bowl, whisk together the dry ingredients: flour, salt, baking soda, and baking powder.
In a separate mixing bowl, whisk together the wet ingredients: Greek yogurt, maple syrup, eggs, vanilla, and melted coconut oil.
Add the dry ingredients to the wet, and mix it all together with a rubber spatula until just combined. Do not over mix the batter.
Reserve a few spoonfuls of chocolate chips to top the muffins, and fold the rest into the batter.
Line a muffin tin with parchment paper muffin liners, or use cooking spray for regular liners or no liners.
Divide the muffin batter into the 12 cups, then top with the reserved chocolate chips.
Bake the chocolate chip muffins at 350 degrees for 18-22 minutes, or until a toothpick inserted comes out clean