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Preheat the oven to 350°F. Line a muffin tin with paper liners.
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In a medium bowl, combine flours, sugar, baking soda, pumpkin spice, cinnamon, and salt. Set aside.
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In a large bowl or stand mixer, mix pumpkin puree, oil, egg whites and vanilla; beat at medium speed until combined.
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Add flour mixture to the wet mixture, then blend at low speed until combined. Fold in chocolate chips.
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Pour batter into prepared muffin tin and bake on the centre rack for 20 to 22 minutes, or until a toothpick inserted in the centre comes out clean.