Richard Robinson joins from the Whitehouse Consultancy where he spent five years and his clients included The Urology Trade Association and pharmacy and medical service company Assura Group.
At Fleishman-Hillard, Robinson will report into healthcare public affairs director Claire Ashbridge-Thomlinson.
He will be based in the team's London office and will work across a number of major accounts including World Hepatitis Day.
Fleishman-Hillard has a 35-strong public affairs team, with seven consultants working in healthcare public affairs.