The Sheriff's Office said the inmate, Edward Moore, was seeking treatment at the hospital's ER when he struggled with the deputy, managed to get the deputy's Taser, and ran out the entrance.
Moore fled from the hospital, carjacking a green Buick van that was left unattended while the van's owner was inside getting a patient.
Moore, whose address is listed as 5007 Birch Road in Fayetteville, was in custody for robbery with a dangerous weapon in connection with a bank robbery in Hope Mills.
Deputies said they later found the green Buick on Fresno Drive off Santa Fe Drive in Fayetteville.
Moore has still not been found.
Moore is to be considered armed and dangerous.
WATCH: Greg Barnes' original report Wednesday evening
ABC11 has learned that the deputy who was assaulted was being treated at the hospital but is expected to be OK.
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The Cumberland County Sheriff's Office is asking if anyone who has information on the whereabouts of Moore to call 911 or the Sheriff's Office at (910)323-1500.
Moore was still wearing an orange jump suit when the incident occurred.
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