How to choose the right oncologist in Delhi: a complete guide

What does an oncologist do?

An oncologist is a physician who specialises in diagnosing and treating cancer, coordinating your overall care, and working with other specialists to ensure comprehensive treatment. Most patients work primarily with one type.

Oncologist type	Primary role
Medical oncologist	Treats cancer with chemotherapy, immunotherapy, targeted therapy, and hormone therapy, and usually coordinates overall care
Radiation oncologist	Treats cancer with radiation therapy, using high-energy rays to destroy cancer cells
Surgical oncologist	Performs surgery to remove tumours and surrounding tissue

This guide focuses primarily on choosing a medical oncologist, though many of the same principles apply to any cancer specialist.

What qualifications should you look for?

Start with educational credentials and board certifications. A qualified oncologist should hold an MBBS degree from a recognised medical college, an MD in general or internal medicine, and a DM or DNB in medical oncology.

Registration is also essential. Since 2020, doctor registration in India has been overseen by the National Medical Commission, which replaced the Medical Council of India. You can verify a doctor’s registration directly through the NMC’s public register.

International certifications, such as board certification from the European Society of Medical Oncology or the American Society of Clinical Oncology, indicate additional expertise and exposure to global oncology standards. Dr Aditya Sarin at Sir Ganga Ram Hospital, for instance, holds ESMO board certification and has completed specialised training from Harvard Medical School in immuno-oncology and precision oncology. 

How much does experience matter?

Qualifications establish a baseline, but experience treating your specific cancer type matters significantly for outcomes. Worth asking about.

1. Years of practice treating cancer patients.
2. Case volume for your specific cancer type.
3. Any sub-specialisation relevant to your diagnosis.
4. Contribution to research or publications in the field.

An oncologist who regularly treats your cancer type will be more familiar with current protocols, likely complications, and the nuances that affect outcomes.

Why does hospital affiliation matter?

A hospital’s infrastructure, support services, and treatment capabilities directly shape your care experience, often as much as the individual doctor’s qualifications.

Look for NABH or JCI accreditation, a dedicated oncology department, 24/7 emergency and ICU access, and in-house diagnostics including PET-CT, MRI, and pathology labs. Delhi has several premier cancer centres, including AIIMS, Sir Ganga Ram Hospital, BLK-Max Super Speciality Hospital, Rajiv Gandhi Cancer Institute, and Tata Memorial Centre. Our guide to choosing a cancer specialist in Delhi breaks down what each hospital is known for.

What treatment capabilities should the hospital offer?

Modern cancer treatment requires access to a range of therapeutic options, not just standard chemotherapy. Verify that the hospital offers current chemotherapy protocols, immunotherapy and targeted therapy, precision oncology through genetic and molecular profiling, access to clinical trials, and radiation or surgical oncology services where relevant.

Precision oncology, which uses genetic testing to tailor treatment to a tumour’s specific characteristics, is increasingly central to modern cancer care. Oncologists who specialise in this approach can often offer more targeted treatment with fewer side effects than a standard, uniform protocol.

How important is communication style?

Medical expertise matters, but you will be working closely with this doctor for months or years, which makes communication central to the relationship.

During your first consultation, notice whether the doctor explains things clearly, listens to your concerns fully, shows empathy about the emotional weight of your diagnosis, and gives you adequate time rather than rushing. Notice, too, how easy it is to reach the doctor or their team between appointments.

Modern oncology also favours shared decision-making, in which the doctor presents options and works with you to choose the approach that best fits your medical situation and personal priorities, rather than simply dictating a course of action. Trust your instincts. If something does not feel right in the first meeting, it is worth considering other options.

What practical factors should you consider?

Cancer treatment often involves frequent hospital visits, so proximity, parking, public transport access, and flexible scheduling are all worth weighing against the quality of care on offer.

Cost is equally practical. Ask whether the doctor accepts your insurance, whether the hospital provides clear cost estimates before treatment begins, whether payment plans or financial assistance are available, and whether cost-effective generic medications will be considered where appropriate. Delhi offers both government hospitals, such as AIIMS, with subsidised or free treatment, and private hospitals at varying price points. Discuss costs openly with your oncologist.

What questions should you ask during your first consultation?

Walking in prepared with questions helps you evaluate whether a doctor is the right fit, covering their experience, your specific diagnosis, treatment goals, and available support. Our complete guide on questions to ask your oncologist organises the full list by appointment stage, from your first diagnosis conversation through follow-up care.

What are red flags to watch for?

Most oncologists in Delhi are dedicated professionals, but a few warning signs are worth noting.

• A dismissive attitude towards your concerns, questions, or symptoms.
• No clear explanation of why a specific treatment is recommended for your case.
• Pressure to make immediate decisions without time to consider options.
• No mention of newer treatment options, such as immunotherapy or precision medicine, when relevant.
• Consistently poor communication from the doctor’s staff.
• Vagueness about qualifications, training, or experience with your cancer type.

If something feels wrong, it is entirely reasonable to seek another opinion or change oncologists

Why get a second opinion?

Getting a second opinion is not just your right; it is often a wise decision. It can confirm your diagnosis and staging, surface alternative treatment options, and give you confidence in the path you choose. Most reputable oncologists support this. You can read more about how this works on our second opinion page.

How do you make your final decision?

Once you have met with one or more oncologists, weigh qualifications and experience, hospital facilities and technology, treatment approach, communication style, and practical factors such as location and cost. Recommendations from family, friends, or online reviews can be a useful starting point, but your own comfort and confidence with the doctor should be the deciding factor.

How do you build a strong partnership with your oncology team?

Once you have chosen your oncologist, actively work to build a strong partnership, since a successful treatment journey depends on teamwork between you and your medical team.

1. Be honest and open about symptoms, concerns, and lifestyle factors.
2. Follow treatment plans and medication schedules as prescribed.
3. Ask questions whenever something is unclear.
4. Keep a symptom diary to help your doctor track your progress.
5. Bring a family member or friend to appointments to help remember information.
6. Communicate promptly about side effects or new symptoms.

Your active participation in this partnership genuinely improves outcomes and quality of life.

The takeaway

Choosing the right oncologist in Delhi is one of the most important decisions you will make after a cancer diagnosis. Taking time to check credentials, ask questions, and trust your instincts will help you find a specialist who provides excellent medical care while supporting you as a whole person.

Dr Aditya Sarin, DrNB Medical Oncology, MD (General Medicine), ESMO Board Certified, is a Consultant Medical Oncologist at Sir Gangaram Hospital, New Delhi, with a focus on precision oncology and personalised treatment planning. You can book a consultation with Dr Aditya Sarin to discuss your case directly.