Last Updated on November 27, 2025 by Bilal Hasdemir

At Liv Hospital, we understand the importance of having a team of skilled cancer specialists to provide comprehensive care for patients undergoing cancer treatment.
Oncologists, or cancer doctor oncologists, are physicians who specialize in the diagnosis and treatment of cancer. With experts like Professor Tan Shao Weng, Daniel, who has extensive experience in oncology, we offer advanced medical treatments tailored to individual patient needs.
Our team is dedicated to providing world-class healthcare with complete support for international patients. We believe in a patient-centered approach, ensuring that every patient receives the care and compassion they deserve.
Key Takeaways
- Oncologists specialize in cancer diagnosis and treatment.
- Liv Hospital offers comprehensive cancer care with a team of experts.
- Patient-centered care is our top priority.
- Advanced medical treatments are available for various cancer types.
- International patients receive complete support throughout their treatment journey.
What Is an Oncologist?

Oncologists are medical doctors who specialize in the diagnosis, treatment, and management of cancer. These cancer specialists are trained to provide comprehensive care to patients, from initial diagnosis through treatment and follow-up care.
Definition and Role of Cancer Specialists
An oncologist is a physician who has undergone extensive training in the field of oncology, which is the branch of medicine dedicated to the study, diagnosis, treatment, and prevention of cancer. The role of an oncologist includes diagnosing cancer, determining the stage of cancer, developing treatment plans, and providing supportive care to patients and their families.
Our team of oncologists at Liv Hospital, including experts like Professor Tan, who specializes in thoracic, head, and neck malignancies, demonstrates the complexity and depth of oncology. With such specialized knowledge, oncologists are equipped to offer the most advanced and appropriate treatments for various types of cancer.
The Importance of Specialized Cancer Care
Specialized cancer care is crucial for effective cancer treatment. Oncologists bring a deep understanding of cancer biology and the latest treatment options, including clinical trials and innovative therapies, to patient care. This specialized knowledge enables them to tailor treatment plans to the individual needs of each patient, improving outcomes and quality of life.
At Liv Hospital, we emphasize the importance of a multidisciplinary approach to cancer care, where oncologists work closely with other healthcare professionals to ensure that patients receive comprehensive and coordinated care.
Medical Oncologists: The Medication Experts

At the heart of cancer treatment are medical oncologists, who employ a range of therapies to fight the disease. We recognize the critical role these specialists play in delivering comprehensive care to patients.
Medical oncologists are experts in the use of medication to treat cancer. They are responsible for diagnosing and treating cancer using various systemic therapies, including chemotherapy, targeted therapy, immunotherapy, and hormone therapy.
Primary Role in Cancer Treatment
The primary role of medical oncologists involves assessing the patient’s condition, determining the most appropriate treatment plan, and administering the prescribed therapy. They work closely with other healthcare professionals to ensure that the treatment is coordinated and effective.
For instance, Professor Tan, who leads the Experimental Cancer Therapeutics Unit at the National Cancer Centre Singapore, is a renowned expert in this field. His work exemplifies the dedication and expertise that medical oncologists bring to cancer treatment.
Types of Treatments Administered
Medical oncologists administer a variety of treatments tailored to the individual needs of their patients. These include:
- Chemotherapy: Using drugs to kill cancer cells.
- Targeted Therapy: Targeting specific cancer cells to reduce harm to healthy cells.
- Immunotherapy: Boosting the body’s immune system to fight cancer.
- Hormone Therapy: Manipulating hormone levels to slow or stop the growth of hormone-sensitive tumors.
| Treatment Type | Description | Application |
|---|---|---|
| Chemotherapy | Using drugs to kill cancer cells | Various types of cancer |
| Targeted Therapy | Targeting specific cancer cells | Cancers with specific genetic markers |
| Immunotherapy | Boosting the immune system | Advanced cancers, including melanoma |
Our medical oncologists at Liv Hospital are committed to providing the highest level of care, utilizing the latest advancements in cancer treatment to improve patient outcomes.
Surgical Oncologists: Cancer Surgery Specialists
At the forefront of cancer treatment, surgical oncologists utilize their specialized skills to remove tumors and improve patient prognosis. Our surgical oncologists at Liv Hospital are highly trained to perform complex cancer surgeries that are critical to patient care.
The Role of Surgery in Cancer Management
Surgery plays a vital role in cancer management, often serving as the primary treatment for many types of cancer. Surgical oncologists are trained to perform operations that can help diagnose, stage, and treat cancer. Their expertise ensures that patients receive the most appropriate surgical care.
Advances in surgical techniques have significantly improved cancer treatment outcomes. Our surgical oncologists are skilled in using the latest methods to minimize recovery time and reduce the risk of complications.
Common Oncological Surgical Procedures
Surgical oncologists perform a variety of procedures, including tumor removals, biopsies, and reconstructive surgeries. These operations require precision and a deep understanding of cancer biology.
| Surgical Procedure | Description | Benefits |
|---|---|---|
| Tumor Removal | Surgical removal of cancerous tumors | Can be curative if cancer is localized |
| Biopsy | Removal of tissue for diagnostic purposes | Helps in accurate diagnosis and staging |
| Reconstructive Surgery | Restoration of form and function after tumor removal | Improves patient recovery and quality of life |
Minimally Invasive Techniques in Cancer Surgery
Minimally invasive surgery is a technique that involves making small incisions, using cameras and instruments to perform the operation. This approach can reduce recovery time, minimize scarring, and lower the risk of complications.
Our surgical oncologists are trained in the latest minimally invasive techniques, ensuring that patients receive the best possible care.
By combining advanced surgical techniques with compassionate care, we provide comprehensive treatment plans that address the unique needs of each patient.
Radiation Oncologists: Experts in Radiation Therapy
At the forefront of cancer care, radiation oncologists specialize in delivering precise radiation treatments. We understand that radiation therapy is a critical component of cancer treatment, and our radiation oncologists are experienced in treating various types of cancer with targeted radiation.
How Radiation Targets Cancer Cells
Radiation oncologists use radiation therapy to target and destroy cancer cells while minimizing damage to surrounding healthy tissue. Radiation therapy works by damaging the DNA of cancer cells, thereby inhibiting their ability to grow and divide. This treatment can be used alone or in combination with other cancer treatments such as surgery and chemotherapy.
External Beam Radiation vs. Brachytherapy
There are two primary types of radiation therapy: external beam radiation therapy (EBRT) and brachytherapy. External beam radiation therapy involves directing high-energy beams from outside the body to target cancer cells. Brachytherapy, on the other hand, involves placing a small amount of radioactive material directly inside or near the tumor.
| Characteristics | External Beam Radiation | Brachytherapy |
|---|---|---|
| Method of Delivery | High-energy beams from outside the body | Radioactive material placed inside or near the tumor |
| Treatment Duration | Typically several weeks | Can be permanent or temporary |
| Side Effects | May cause fatigue, skin reactions | Can cause localized side effects depending on the location |
Treatment Planning and Delivery Process
The treatment planning process for radiation therapy involves several steps, including simulation, treatment planning, and delivery. Our radiation oncologists work closely with a team of radiation therapists and physicists to ensure precise treatment delivery. During simulation, imaging technologies such as CT scans are used to define the treatment area. The treatment plan is then developed to maximize the dose to the tumor while minimizing exposure to surrounding healthy tissues.
We pride ourselves on our ability to deliver personalized care, tailoring the treatment to each patient’s specific needs. By utilizing advanced radiation techniques, we can effectively treat a wide range of cancers.
Hematologist-Oncologists: Blood Cancer Specialists
At Liv Hospital, our hematologist-oncologists are dedicated to providing comprehensive care for patients diagnosed with various types of blood cancers. We understand the complexities of blood cancers, including leukemia, lymphoma, and myeloma, and are committed to delivering the most effective treatment options.
Understanding Leukemia, Lymphoma, and Myeloma
Blood cancers are characterized by the uncontrolled growth of abnormal cells in the blood or bone marrow. Leukemia affects the blood and bone marrow, while lymphoma originates in the lymphatic system. Myeloma, on the other hand, affects plasma cells in the bone marrow. Our hematologist-oncologists are trained to diagnose and treat these conditions with precision.
Understanding the specific type and stage of blood cancer is crucial for developing an effective treatment plan. We utilize advanced diagnostic techniques to determine the best course of action for each patient.
Specialized Blood Cancer Treatments
Our hematologist-oncologists employ a range of specialized treatments for blood cancers, including targeted therapies, chemotherapy, and immunotherapy. These treatments are designed to target cancer cells while minimizing damage to healthy tissues.
We also participate in clinical trials to stay at the forefront of emerging treatments for blood cancers. This allows us to offer our patients access to innovative therapies that may not be widely available.
Stem Cell Transplantation Expertise
Stem cell transplantation is a critical treatment option for certain types of blood cancers. Our hematologist-oncologists have extensive experience in performing stem cell transplants, including both autologous (using the patient’s own stem cells) and allogeneic (using donor stem cells) transplants.
The stem cell transplantation process involves several stages, from initial evaluation and preparation to the transplant itself and post-transplant care. Our team provides comprehensive support throughout this process to ensure the best possible outcomes for our patients.
Gynecologic Oncologists: Women’s Cancer Experts
The field of gynecologic oncology has made significant strides in improving treatment outcomes for women with reproductive system cancers. At Liv Hospital, our gynecologic oncologists are dedicated to providing expert care to women diagnosed with these complex conditions.
Specialized Care for Reproductive System Cancers
Gynecologic oncologists specialize in the diagnosis and treatment of cancers that affect the female reproductive organs, including the cervix, uterus, ovaries, and vulva. Our team provides comprehensive care, from initial diagnosis through treatment and follow-up.
Comprehensive treatment plans are developed in collaboration with other specialists to ensure that patients receive the most effective and appropriate care for their specific condition.
Surgical and Medical Treatment Approaches
Gynecologic oncologists are trained in both surgical and medical management of women’s cancers. Surgical options may include minimally invasive procedures to remove tumors or affected organs. Medical treatments can involve chemotherapy, targeted therapy, or hormone therapy, depending on the type and stage of cancer.
- Minimally invasive surgical techniques to reduce recovery time
- Chemotherapy and other medical treatments tailored to the patient’s needs
- Participation in clinical trials to access innovative treatments
Fertility Preservation Considerations
For many women diagnosed with reproductive system cancers, fertility preservation is a significant concern. Our gynecologic oncologists work closely with patients to discuss options for preserving fertility, such as egg freezing or ovarian tissue preservation, before starting treatment.
By considering the unique needs and goals of each patient, we strive to provide care that addresses both the cancer diagnosis and the patient’s overall well-being.
Pediatric Oncologists: Childhood Cancer Specialists
Pediatric oncologists play a crucial role in the diagnosis and treatment of cancers in children. At Liv Hospital, our team of pediatric oncologists is dedicated to providing comprehensive and compassionate care to young patients.
Unique Aspects of Cancer in Children
Cancer in children is distinct from adult cancer in several ways. The types of cancers that occur in children are often different, and their treatment requires a specialized approach. Pediatric oncologists are trained to handle these differences, ensuring that children receive the most appropriate care.
Childhood cancers can include leukemias, brain tumors, and solid tumors like neuroblastoma. The biological characteristics of these cancers can vary significantly from their adult counterparts, necessitating a tailored treatment plan.
Family-Centered Treatment Protocols
At Liv Hospital, we emphasize family-centered care in our treatment protocols. We understand that a child’s cancer diagnosis affects the entire family, and our approach is designed to support both the patient and their loved ones.
Our family-centered care includes:
- Comprehensive counseling and support services
- Involvement of family members in care decisions
- Tailored treatment plans that consider the child’s overall well-being
Long-term Survivorship Care
As cancer treatment advances, more children are surviving cancer than ever before. However, survivors may face long-term effects from their treatment. Our long-term survivorship care programs are designed to monitor and address these effects, ensuring that survivors lead healthy lives.
| Aspect of Care | Description | Benefits |
|---|---|---|
| Monitoring | Regular follow-up appointments to track health | Early detection of potential late effects |
| Support Services | Counseling, educational support, and rehabilitation | Improved quality of life for survivors |
| Education | Information on healthy lifestyle choices and risk reduction | Empowered survivors making informed decisions |
Professor Tan’s work highlights the importance of specialized care for children with cancer, and we are committed to continuing this legacy at Liv Hospital.
The 6 Types of Oncologists: Collaborative Cancer Care
Effective cancer treatment requires a multidisciplinary approach, bringing together various specialists to provide comprehensive care. At Liv Hospital, we emphasize the importance of teamwork in delivering world-class cancer treatment.
Multidisciplinary Tumor Boards
A multidisciplinary tumor board is a critical component of collaborative cancer care. It brings together experts from various oncology disciplines to discuss patient cases and develop treatment plans. This collaborative approach ensures that all aspects of a patient’s condition are considered, leading to more effective treatment strategies.
Our tumor boards include specialists such as medical oncologists, surgical oncologists, radiation oncologists, and other support staff. Together, they review diagnostic information, discuss treatment options, and recommend the best course of action for each patient.
How Different Oncologists Work Together
The different types of oncologists work together seamlessly to provide comprehensive care. For instance, a medical oncologist may work with a surgical oncologist to coordinate chemotherapy and surgery. Similarly, a radiation oncologist may collaborate with a hematologist-oncologist to develop a treatment plan that includes radiation therapy and targeted medication.
This collaborative approach is exemplified by Professor Tan’s leadership in the Asian Thoracic Oncology Research Group, demonstrating the power of collaboration in advancing cancer research and treatment.
Patient Navigation Through Specialist Networks
Patient navigation is a crucial aspect of our care model. We understand that navigating the healthcare system can be challenging, especially for international patients. Our dedicated team helps patients connect with the right specialists, ensuring they receive the care they need in a timely and efficient manner.
By working together, our team of oncologists and support staff provides a seamless experience for our patients, from initial consultation to treatment and follow-up care. This collaborative approach not only improves patient outcomes but also enhances their overall experience.
Board Certification and Quality Standards in Oncology
Board certification is a cornerstone of quality standards in oncology, reflecting a commitment to excellence in cancer care. At our institution, we understand the significance of rigorous standards in ensuring the best possible outcomes for our patients.
What Board Certification Means for Patients
For patients, board certification is a reassuring indicator that their oncologist has met stringent criteria, including specialized training and passing comprehensive exams. This certification is not a one-time achievement; it requires ongoing education and adherence to ethical standards. Our team of oncologists, including Professor Tan, is committed to maintaining the highest standards of care through board certification.
Ongoing Education Requirements for Oncologists
The field of oncology is constantly evolving, with new treatments and technologies emerging regularly. To stay abreast of these developments, our oncologists participate in continuous education programs, ensuring they are always equipped with the latest knowledge and skills. This commitment to ongoing education is a hallmark of our quality care.
Liv Hospital’s Adherence to Global Best Practices
At Liv Hospital, we adhere to global best practices in oncology, aligning our treatment protocols with international standards. This ensures that our patients receive care that is on par with the world’s leading cancer treatment centers. Our multidisciplinary approach, combined with cutting-edge technology and evidence-based medicine, sets us apart in the field of oncology.
Current Protocols and Treatment Standards
We maintain up-to-date protocols and treatment standards, reflecting the latest advancements in cancer care. Our oncologists work collaboratively to develop and implement personalized treatment plans, ensuring that each patient receives the most effective and appropriate care for their specific condition. By staying current with global best practices, we are able to offer our patients the highest quality care available.
Emerging Subspecialties in Oncology
Oncology is becoming increasingly specialized, with new areas of focus emerging to address complex cancer cases. At Liv Hospital, we recognize the importance of staying at the forefront of these advancements to provide comprehensive care to our patients.
Neurological Oncology
Neurological oncology is a subspecialty that focuses on cancers affecting the brain and nervous system. This field requires a deep understanding of both oncology and neurology to effectively diagnose and treat tumors in these sensitive areas.
Advances in neurosurgical techniques and radiation therapy have significantly improved outcomes for patients with brain tumors. Our team collaborates closely with neurosurgeons and other specialists to develop personalized treatment plans.
Dermatologic Oncology
Dermatologic oncology deals with the diagnosis and treatment of skin cancers, including melanoma, basal cell carcinoma, and squamous cell carcinoma. Early detection is crucial in managing these conditions effectively.
We utilize the latest techniques in dermatologic surgery and employ multidisciplinary approaches to manage complex skin cancer cases, ensuring that patients receive comprehensive care.
Integrative Oncology Approaches
Integrative oncology combines conventional cancer treatments with evidence-based complementary therapies. This approach aims to improve patients’ quality of life and overall well-being during and after cancer treatment.
Our integrative oncology program includes services such as nutrition counseling, mind-body therapies, and acupuncture, tailored to meet the individual needs of each patient.
Future Directions in Cancer Specialization
The future of oncology lies in continued specialization and innovation. Emerging areas such as precision medicine and immunotherapy are transforming cancer care.
At Liv Hospital, we are committed to advancing the field through research and education, ensuring that our patients have access to the latest treatments and technologies.
Conclusion
At Liv Hospital, we understand the complexities of cancer and the importance of specialized care. Our team of dedicated oncologists, including medical, surgical, radiation, hematologist-oncologists, gynecologic oncologists, and pediatric oncologists, work together to provide comprehensive support to our patients.
With expertise in various cancer treatments, our oncologists collaborate to develop personalized treatment plans, ensuring the best possible outcomes. Professor Tan’s expertise and our hospital’s mission demonstrate our commitment to quality cancer care.
We provide world-class healthcare with complete support for international patients, making us a trusted destination for advanced medical treatments. Our multidisciplinary approach to cancer care ensures that patients receive seamless, comprehensive support throughout their treatment journey.
By choosing Liv Hospital, patients can trust that they are in the hands of experienced oncologists who are dedicated to delivering exceptional cancer care.
FAQ
What is an oncologist?
An oncologist is a medical doctor who specializes in the diagnosis, treatment, and management of cancer. We have a team of oncologists at Liv Hospital who are dedicated to providing comprehensive care for patients with various types of cancer.
What are the different types of oncologists?
There are several types of oncologists, including medical oncologists, surgical oncologists, radiation oncologists, hematologist-oncologists, gynecologic oncologists, and pediatric oncologists. Each type of oncologist has a unique role in cancer care, and we have experts in all these areas at Liv Hospital.
What does a medical oncologist do?
A medical oncologist is responsible for diagnosing and treating cancer using medication, such as chemotherapy, targeted therapy, and immunotherapy. Our medical oncologists at Liv Hospital are experts in using these treatments to manage various types of cancer.
What is the role of a surgical oncologist?
A surgical oncologist is a surgeon who specializes in removing tumors and cancerous tissues. Our surgical oncologists at Liv Hospital are skilled in performing complex cancer surgeries, including minimally invasive procedures.
How does radiation therapy work?
Radiation therapy uses high-energy rays to target and kill cancer cells. Our radiation oncologists at Liv Hospital use advanced technology to deliver precise radiation therapy, minimizing damage to healthy tissues.
What is a hematologist-oncologist?
A hematologist-oncologist is a doctor who specializes in the diagnosis and treatment of blood cancers, such as leukemia, lymphoma, and myeloma. Our hematologist-oncologists at Liv Hospital are experts in managing these conditions.
What is gynecologic oncology?
Gynecologic oncology is a subspecialty that focuses on the diagnosis and treatment of cancers of the female reproductive system. Our gynecologic oncologists at Liv Hospital provide comprehensive care for patients with these types of cancer.
How is cancer in children different from cancer in adults?
Cancer in children is different from cancer in adults in terms of the types of cancer that occur, the way the disease progresses, and the treatment approaches used. Our pediatric oncologists at Liv Hospital are trained to provide family-centered care for children with cancer.
Why is board certification important for oncologists?
Board certification ensures that an oncologist has the necessary knowledge, skills, and experience to provide high-quality care. Our oncologists at Liv Hospital are board-certified and committed to ongoing education and staying up-to-date with the latest treatment standards.
What is integrative oncology?
Integrative oncology is an approach that combines conventional cancer treatments with evidence-based complementary therapies, such as nutrition, mind-body therapies, and other supportive care. We recognize the importance of integrative oncology in providing comprehensive care for our patients.
How do different types of oncologists work together?
At Liv Hospital, our different types of oncologists work together as a team to provide comprehensive care for patients with cancer. We have multidisciplinary tumor boards where we discuss patient cases and develop personalized treatment plans.