Our Team

Mountain View Oncology has a dedicated group of people including Oncology nurses, Palliative physicians, Social workers, Psychologist, Occupational therapists, Physiotherapists and an administration team, who recognize the importance of making all our patients feel welcome and cared for.

Clinical & Radiation Oncologists

Dr. John Sauer

Raised in rural North West, he graduated from the University of Pretoria in 1998. His medical journey led him to Manitoba, Canada, where he worked as a general practitioner for 7 years before returning to South Africa specializing in Oncology at the University of Stellenbosch. He graduated in 2012. He has since dedicated himself to working at Mountainview Oncology, with a focus on Lung, Breast, Prostate, Colon and Brain tumours. Beyond work, he enjoys the outdoors and cherishes time with his wife and two Havanese children.

Dr. Mari Engelbrecht

Dr Engelbrecht was born and raised in Bellville. She attended Bellville North Primary School and matriculated at Bellville High School.

She obtained her MBChB degree at the University of Stellenbosch in 1993.

After her internship in Livingstone Hospital in Port Elizabeth she worked for a short time in Elsies River Day hospital.

In 1996 she got a calling to work in a rural mission hospital at Nkhoma in Malawi. This was a very blessed time in her life, when she became aware of the grace of God.

In 2000 she joined the SANDF and started her career in palliative care when she was employed in the Hospice/palliative care unit at 2 Military Hospital. She obtained a postgraduate degree in Palliative Care in 2002.

In the Palliative Care Unit, she became more involved in the treatment of patients who were treated with a curative intent. In 2010 the SANDF sent her for training as a radiation oncologist. She studied at the University of Cape Town and received training at Groote Schuur Hospital. She completed her studies in 2014.

After her studies, she returned to 2 Military Hospital for a few years.

In 2018 she joined Mountain View Oncology in Kuils River.

Hobbies: Mari loves music and traveling. (she works so that she can travel)

Social: She shares a house with her sister, Gerda and 3 dogs Kerneels, Lily and Pippa.

Dr. Benita Stoltz

Dr Benita Stoltz joined Mountain View Oncology in 2019.

She qualified in 2008 with an MBChB degree from the University of Pretoria. She then worked at the Tambo Memorial Hospital in Boksburg where she did her internship and her community service.  She returned to Pretoria where she worked in the Departments of Medical Oncology and Radiation Oncology, Steve Biko Academic Hospital where she was involved in clinical trials. She decided to specialize in oncology and completed her MMedRadOnc from the University of Pretoria in 2018. She also qualified from the College of Medicine of South Africa, FC Rad Onc.

She currently resides in the beautiful Paarl, where she practices.

Dr. Lydia van der Vyver

Dr Lydia van der Vyver grew up in the Northern Suburbs of Cape Town and obtained her MBChB degree from Stellenbosch University in 2015.

Oncology chose her during her first week of internship at 2 Military Hospital, when her father-in-law was diagnosed with cancer. This experience revealed the gap in undergraduate oncology training and inspired her determination to become an oncologist — a dream that would take a decade to be fulfilled.

She undertook research in haematology at the University of Cape Town, completed her community service in oncology, and joined Mountain View Oncology in 2019, where she gained invaluable experience as part of the team.

She completed a postgraduate diploma in palliative care, graduating cum laude in the clinical component. She was subsequently accepted for specialisation in Radiation and Clinical Oncology at Stellenbosch University and went on to complete her MMed and the FC Rad Onc qualifications, achieving a distinction in the clinical examination.

On 1 November 2025, Dr van der Vyver rejoined Mountain View Oncology as a qualified oncologist, realising the dream she had pursued for ten years.

She has a keen interest in the holistic treatment of female oncological malignancies, as well as in the treatment of prostate carcinoma as part of a highly experienced uro-oncology team.

Outside of work, she enjoys spending time with her energetic daughter and road running, especially half marathons.

Dr. Bhavesh Nagar

Dr Bhavesh Nagar completed his Bachelor of Medicine and Bachelor of Surgery (MBChB) degree at the University of Cape Town (UCT) in 2009. In 2005 he was inducted into The Golden Key Honorary Society which recognises the top 15% of tertiary candidates.

After completing two years of internship training at the Port Elizabeth Hospital complex where he gained valuable experience across a wide range of medical disciplines including, Family medicine, Internal medicine, General surgery, Orthopedics, Anaesthesiology, Obstetrics & Gynaecology and Paediatrics, he returned to Cape Town in 2012 to work as a community service doctor at Karl Bremmer Hospital and Kraaifontein Day Hospital.

In 2014 he began working as a Medical Officer at the Department of Radiation Oncology at Groote Schuur Hospital in Cape Town and continued to specialise in Radiation Oncology at Groote Schuur Hospital and UCT. He holds a fellowship in Radiation Oncology from the Colleges of Medicine of South Africa (CMSA) and a Master’s of Medicine (with distinction) from UCT.

After specialising he worked in the Departments of Radiation Oncology at Tygerberg Hospital and Groote Schuur Hospital for a year at each site as a consultant where he ran the Gastrointestinal, Hepatobiliary, Lung and Thyroid cancer clinics and provided post-graduate training to registrars undergoing their specialist training.

In July 2024 he entered private practice at Mountain View Oncology. His areas of interest include cancers of the Gastrointestinal and Hepatobiliary systems, Breast cancer and Urological malignancies but welcomes referrals from all subsites.

Dr. Zaeem Dalvie

Dr. Zaeem Dalvie graduated with an MBChB from the University of Cape Town in 2010, completing his internship and community service at 2 Military Hospital. His adventurous spirit then took him to the high seas as a cruise ship doctor, where he gained unique experience caring for passengers and crew from around the world — even steering his team through the challenges of a COVID-19 outbreak in the early days of the pandemic.

When he returned home in 2020, Dr. Dalvie found his true calling in oncology. He trained and worked at Groote Schuur Hospital, later specialising in radiation oncology. In 2024, he obtained both his Fellowship of the College of Radiation Oncologists (FC Rad Onc) and Master of Medicine, marking the culmination of years of dedication to cancer care.

At Mountain View Oncology, Dr. Dalvie combines advanced medical expertise with genuine compassion, guiding each patient through their cancer journey with care, empathy, and clarity. He treats a broad range of cancers and has a special interest in breast, gastrointestinal, urological and gynaecological malignancies.

Outside of work, life is just as full — he’s married with two daughters, meaning he’s joyfully outnumbered by women at home. A keen traveller and marathon runner, he thrives on exploring new places and pushing himself on the road, one mile at a time.

Medical officers

Dr. Lecia Swartz

Dr. Lecia Swartz has been practicing as a Medical Officer in oncology since 2018 and joined Mountain View Oncology in 2021. Prior to joining our team, she worked within the disciplines of internal medicine, family medicine and allergology.

She graduated from the University of Pretoria and has obtained a post graduate diploma in Palliative Care from the University of Cape Town. She strives to treat all her patients with compassion and kindness by delivering dignified holistic care to each individual.

Dr. Joey de Jager

Dr Johanna (Joey) De Jager Romero started her career in medicine after graduating with an MBChB from the University of Pretoria in 1991. Her early years were spent in the United Kingdom where she gained invaluable experience in various medical specialties, including emergency medicine, psychiatry, and palliative care. In 2007 she found her calling at Nightingale House Hospice and Star Care Oncology Unit in Wales, dedicating herself to providing compassionate care to cancer patients.

In 2015 she made the decision to return to South Africa, driven by her passion for palliative care. Today, she is proud to be a part of the Mountain View Oncology team, where she serves as a palliative care physician, offering comprehensive and patient-centred care. Additionally, she has the privilege of serving as the hospice doctor for Drakenstein Hospice, furthering her commitment to ensuring that patients and their families receive the support they need during challenging times. She finds immense fulfilment in being a part of her patients’ journeys, delivering holistic care that focuses on their well-being and comfort as they navigate the complexities of life-limiting illness.

Dr. Tania de Vos

After graduating from Stellenbosch University in 2019, Dr Tania de Vos respectively completed her 2-year internship and community service year at Tygerberg Hospital and Paarl Provincial Hospital. It was during the pandemic that her interest piqued in providing medical care that promotes quality of life for vulnerable individuals and support for their families. She then went on to serve as the primary Palliative Care Doctor at St Luke’s Hospice for two years, during which she obtained a Diploma in Palliative Medicine at UCT.

She divides her leisure time between reading, baking, making memories with her loved ones, and keeping her sprightly border collie entertained.

Tania cherishes the life lessons and sense of fulfilment that comes from caring for her patients.

Dr. Shane Beukes

Practice Manager

Heather Smit

Nursing Manager/Clinical Nurse Navigator

Sr Lettie Blom

Oncology nurses

Debbie Alexander

Elsa van Dyk

Hazel Grove

Rose Damon

Registered nurses

Chanelen Bux

Jomari Mintoor

Denzil Solomons

Sr Emmily Solomons

Rozanne Visser

Ayesha Fredericks

Ilza Laubser

Study Coordinator

Louise Paterson

Receptionists

Aloma Willemse

Lise-Marie Lombard

Pearl Andrews

Juanita van Niekerk

Karen Adams

Authorisations

Soneke Schell 

Mechaux Meiring

Melonie Andrews

Accounts

Caron Thomas

Nicky Martin

Soraya Deerling

General Assistants

Dorette Relling

Nella Lewis

Atwena September

Janitor Paarl

Steven Macapella

Dischem Pharmacists

Christine le Roux

Elizna van der Merwe

Andri Pretorius