Preheat oven to 350° F. Prepare a 12-cup muffin pan with nonstick spray or muffin liners.
In a large bowl, gently whisk whole wheat flour, pumpkin spice, baking powder, baking soda, salt. Add chocolate chips and toss to evenly coat.
In a separate large bowl, whisk pumpkin, sugar, oil, eggs, and vanilla until combined.
Add liquid ingredients to flour mixture. Using a spatula, fold ingredients until just moistened. Do not overmix.
Portion ~¼ cup batter into each cup. Bake 18-20 minutes or until slightly golden and a toothpick inserted into the middle comes out clean. Enjoy!