Prominent surgeon and military doctor Sam Ali is in a battle with Port Pirie hospital.
Dr Ali has been suspended from performing surgery at the health service for an unspecified time.
His lawyer, Nick Iles, issued a statement on Sunday.
"I can confirm that Dr Ali has been instructed not to operate at the Port Pirie hospital for the time being," he said.
"He is talking to all his patients and discussing treatment options based on priority and patient choice.
"No allegations have been put to him at this point and we are pressing the hospital for a full explanation as to why this has happened.
"All we know is that this has nothing to do with any clinical matter or patient safety."
Later, a Yorke and Northern Local Health Network spokesman said the network was "unable to comment on individual arrangements or ongoing matters due to privacy".
Dr Ali has built a strong personal following in his time as a surgeon in Port Pirie.
He has twice won the Flinders Medical Students' Society's highest honour for clinical educators, the Burns-Alpers Clinical Teaching Award.
The award was set up in 2000 by the medicine and surgery graduating class to honour Professor Jack Alpers and Professor Richard Burns who were Flinders Medical Centre clinicians.
It allows Flinders medical students to thank their most inspiring clinical teachers.
"The award is not mine - it is for the community. We have to thank the general population because they have supported me to train these people," Dr Ali said at the time.
In his role as a military doctor, he deployed with the Army Reserve to treat casualties in the Kangaroo Island bushfires last year.
Dr Ali, who has served in the Middle East, has the rank of Lieutenant-Colonel. Amid the flames, he was based at a field hospital on a football oval at Parndana on the island.
He said he was there to support the medical needs of the reserve. Dr Ali showed his knowledge of the military with a series of local talks about weapons.