Doyle came off at half time during the Bantams' Easter Monday match at Swindon Town with a recurrence of a long-standing groin problem he has been nursing for some time now.
Hanson missed the game entirely following City's decision to not the risk the striker after he had only just returned from a troublesome back injury in the previous Friday's home fixture against Peterborough United.
Dolan also sat out the Swindon match due to a sore groin.
Parkinson said: "We do have some injury concerns over Nathan Doyle, James Hanson and Matty Dolan going into this one.
"They are the same issues that affected them for Monday's game at Swindon.
"We will need to look at them and assess their chances ahead of the game on Saturday.
"They have all had a few days in the treatment room this week and we'll assess them tomorrow (Friday).
"Obviously all of the lads want to play though.
"It is our last home game of the season and everybody wants to be out there."
Regardless of the fitness of Dolan, Doyle, Hanson, there will be at least one place up for grabs in City's starting line up come this Saturday following the departure of Adam Reach back to Middlesbrough after the completion of his loan deal.
Parkinson added: "With Adam Reach coming out of the team, it does open up a space for somebody else. It will give someone else an opportunity.
"Whoever plays in Adam's place though, he will be part of an eleven we'll be selecting that we feel can win the game."