Dan Smith who is 65 on Feburary 15th, 2018 supportsand claims his elderly father who just has social security income. Dan's Social security number is...

Dan Smith who is 65 on Feburary 15th, 2018 supportsand claims his elderly father who just has social security income.

Dan's Social security number is 535-52-8021.

Dan's father's, SAM SMITH social security number is 561-32-5201, birthday is March 10, 1932

Dan lives at 112 main strret, Port Orchard, Washington 98366.

Dan has full health coverage for the entire year and so does his father.

My question is: Can Dan file as Head of Household in this situation? because his father will count as his dependent or will he have to file as Single?