We at Gosford Nephrology provide care for the patients with Hypertension, a wide variety of kidney diseases, dialysis and transplantation of Kidney/Pancreas. Gosford Nephrology became operational in January 2010. It is run by Dr. Karthik Kumar, who has admitting rights at various major hospitals in the Central Coast and in Sydney Adventist Hospital in Wahroonga.

Gosford Nephrology is a paperless office. We work from a premises that is Eco-friendly and environmentally sustainable. Our office harnesses solar energy for electricity, harvests rain water, and has natural lighting wherever feasible.


To schedule an appointment for consultation, please call 02-4321-0555. Appointments are confirmed a day before, however it is advisable for patients to make a note of their scheduled date and time. It is recommended that you bring all relevant medical documents radiology films, webster packs / medications for the consultation. If you are unable to provide details online via “Online Appointment Form“, we are more than happy to send the paperwork by post prior to your initial consultation.

In exceptional circumstances, due to Dr Kumar’s commitment to inpatients and emergencies, appointment times may change or be delayed. In such situations we would try and let you know as early as we could. We thank you for understanding. In case patients are unable to attend their scheduled appointments, we would appreciate if you could inform us at least 24 hours prior to the scheduled appointment.