And it will include a clinic in Maori for the first time.
The hospital's annual community day will also be at the Hunter Centre on Saturday, from 10.30am to 2.30pm.
As well as buddy doctors and dentists, the day will include physiotherapy and pharmacy students - and medical student Courtney Sullivan will carry out the first Maori language clinic.
Fellow medical student Alexandra Dempsey said the week had proved popular. About 300 children are booked on weekdays. Hundreds more were expected on Saturday.
She hoped the te reo clinic would attract Maori-speaking families.
''We wanted to do te reo just to help Maori coming in to feel comfortable in the healthcare system,'' she said.
St John will also attend, and entertainment for children will include a bouncy castle.
More than 280 students take part, and Dunedin businesses and healthcare organisations also got behind the Teddy Bear Hospital.
Elim Church was allowing the students to use its premises on Harrow St for the weekday clinics, and the Otago Polytechnic's School of Nursing allowed the students to use its equipment.
Medical student Savannah Adams said the day had payoffs for students.
''It's good precisely for us just to communicate with the children. Being university students we don't get to be around them and to engage with them,'' she said.
For the children, it helped reduce some of their anxiety about ''things like vaccinations and needles'', she said.
Third-year medical student Brooke Battersby, taking part for the second time, said it was an ''absolute highlight'' of her year.
Pioneers home-based childcare educator Karyn Churcher said she took children to the hospital every year so they could be around doctors, dentists and medical equipment in a fun setting rather than when they were ill.
''They think about what's wrong with their teddies, and then they tell the doctor.''
