Our Doctors in Sydney

Dr N.S. Grewal opened the Observatory Tower Medical Centre in Sydney CBD in March 2000. He works part-time at the clinic seeing his regular patients and spends his other time working in the Emergency Department of hospitals and at his other Executive Health Group clinics. He specialises in men’s health, occupational health, stress management and emergency medicine.

Dr Brian Lonergan works full-time at the clinic taking appointments from 7.30am weekdays. His special interests include men’s and women’s health, preventative medicine, sexual health and stress counseling.

Our Nurses Work With Our Doctors in Sydney

Yuki Nakayama is one of our practice Registered Nurses. She assists our Doctors with blood tests, immunisations, corporate health checks and more. Yuki also speaks fluent Japanese and assists our Japanese patients and clients with translating services and Japanese health checks.


Click here to work in our team of doctors, nurses and medical administration team.

Make an Appointment with One of Our Sydney CBD Doctors

Click here below button to book an appointment online with one of our Sydney doctors.