"Those people whose appointments are being deferred are being contacted individually by Lakes DHB."
Mr Saville-Wood said the health board also had an 0800 number - 0800 223 647 - for those people uncertain about their appointments or procedures during the strike.
"People should ensure they are up to date with their prescriptions and other requirements, and if they get into difficulty, they should make their GP or Lakes PrimeCare their first port of call."
He said only urgent cases would be able to be dealt with at the emergency department at Rotorua Hospital during the industrial action.
"The contingency planning focuses on ensuring the continuing provision of essential emergency services including acute surgery, emergency department care, intensive care, and maternity care."
In October, resident doctors walked off the job for 48 hours.
During that strike, 309 outpatient clinic appointments had to be postponed by Lakes DHB.
In addition, 52 patients had surgical procedures postponed.