Blend the oats in a food processor or blender until smooth.
In a large bowl, mix together the dry ingredients: oats, sugar, baking powder, cinnamon, baking soda, and salt.
In a separate medium bowl, whisk together the eggs, milk and vanilla. Stir in the greek yogurt.
Pour the egg mixture into the bowl with the dry ingredients and stir to mix.
Fold in the chocolate chips.
Add non-stick spray (or butter) to a large skillet or griddle over medium heat. Once hot, add ¼ cup of batter. Once the edges are set (about 2 - 3 minutes), flip the pancake and cook for 1 - 2 minutes more. Cook until brown on both sides. Add more non-stick spray and repeat until no batter is left.
Serve warm, optionally topped with syrup and berries.