Meet Our Dentists

Our experienced dentists in Castle Hill are committed to offering personalised care and excellent results.

Dr. nancy chu from Castle Hill Dental Team

Dr. Nancy Chu

GENERAL DENTAL SURGEON

With over 25 years of experience, Dr. Nancy Chu is a compassionate dentist known for her gentle approach and patient-first care. She holds advanced degrees from the University of Adelaide and the University of London, with expertise in general, cosmetic, and implant dentistry.

She specialises in orthodontics with 20+ years of experience, offering Invisalign, ClearCorrect, and early intervention treatments. Fluent in English and Mandarin, Dr. Nancy is also active in community service and enjoys baking and teaching piano in her free time.

Dr. Sampoorna Kulkarni

GENERAL DENTAL SURGEON

Dr. Sampoorna Kulkarni is a qualified general dentist with a Postgraduate Diploma in Orthodontic Treatment with Clear Aligners, accredited in both Australia and the UK. She has a strong clinical focus on clear aligner therapy and is passionate about preventive, preservative, and evidence-based care, firmly believing that minimal intervention leads to healthier, longer-lasting smiles.

 

With a special interest in airway-focused dentistry, she addresses concerns such as snoring, teeth grinding, clenching, and temporomandibular joint disorders (TMD) in adults. She also works with children to support healthy airway and jaw development, offering early intervention strategies like maxillary expansion and customised appliances to promote better breathing and overall wellness.

 

Known for her gentle and empathetic approach, Dr. Kulkarni is especially skilled at caring for children and anxious patients, fostering a calm and supportive environment where every patient feels at ease.

 

Outside the clinic, she enjoys cooking, travelling, and spending quality time with her husband and two children.

Dr. Kam Wa Sinn

GENERAL DENTAL SURGEON

Dr Kam Wa Sinn is an Australian-registered general dental surgeon, with extensive experience across both public and private healthcare sectors. He holds dual degrees in Pharmacy and Dentistry from the University of Sydney.

 

Dr Sinn is highly skilled in all aspects of general dentistry, with particular clinical interests in Oral Medicine, Oral Surgery, tooth extractions, and the management of periodontal (gum) disease. He is committed to providing high-quality, patient-centered care with a strong emphasis on evidence-based practice.

Dr Marcelle Girgis

GENERAL DENTAL SURGEON

Dr Marcelle Girgis completed her dental degree at the University of Sydney. Dr Marcelle received a Prize in Preventive Dentistry at the University of Sydney. This established a foundation for a preventive approach to dentistry in general.

Dr. Marcelle enjoys coming to work each day to meet and help her patients. She feels that educating and empowering a patient is important in helping them control their dental health. She is careful to be gentle as dental procedures can be intimidating. At Westmead Hospital she worked in Special Needs Dentistry. Dr Marcelle believes that a patient should feel that they are in a safe space and that they are in control. A short time in the chair helps to make any procedure better.

Dr. Marcelle has worked in Sydney as a dentist for over 20 years and is experienced in diagnosing and treating complex dental issues. Working as part of the team of dentists at Castle Hill Smiles, Dr Marcelle can co-ordinate treatment plans to give the patient the best possible outcome.

Dr Marcelle has a special interest in treating children, the elderly, anxious patients, and those with complex dental requirements, as well as simple routine check ups. Dr. Marcelle is a member of the Australian Dental Association. Outside of dentistry she enjoys gardening and time with friends and family. You will often see her sharing photos of her pet dog Milo, and the latest flowers in her garden with staff and patients in the office.

Dr. Marcelle is a member of the ADA.

Dr. Ranjana Giri

GENERAL DENTAL SURGEON

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Dr. Ranjana is a highly experienced dentist who has been providing exceptional dental care since graduating from dental school in 2004. With over two decades of clinical experience, she offers a comprehensive range of dental services, with a particular focus on orthodontic solutions using clear aligners for both children and adults.

Known for her gentle and personalized approach, Dr. Ranjana has helped countless patients achieve confident, healthy smiles through customized treatment plans tailored to individual needs. Whether guiding young patients through early orthodontic intervention or helping adults enhance their smile discreetly, she combines advanced techniques with a deep commitment to patient comfort and satisfaction.

Outside of the office, Dr. Ranjana enjoys spending quality time with her family and friends, traveling to new places, reading a wide range of books, and attending spiritual retreats that support personal growth and reflection.

Dr. Ranjana is a member of the ADA.

Dr. Shravan Kumar

GENERAL DENTAL SURGEON

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Dr Shravan Kumar BDS (Griffith) is a caring and empathetic dentist who always strives to prioritise his patients concerns, anxieties and long-term oral health outcomes in his treatments. He loves to educate patients on a holistic and preventative approach to their dental health as well as having a keen interest in smile makeovers and aesthetic dentistry. He is also very proficient and loves oral surgery procedures.

 

In his time away from the clinic, Shrav loves to spend time with his wife trying new restaurants and travelling, spending time with his family and dog (Saffy the pug), playing club cricket on the weekends and watching his favourite football team (Manchester City) play

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