Best Stomach Cancer Doctors in Hyderabad — CION's Dedicated Gastric Cancer Panel

The best doctor depends on your stage and treatment needs. For surgery, look for an M.Ch-trained surgical oncologist with documented experience in D2 gastrectomy (the onco-specific lymph node dissection technique that meaningfully improves outcomes). For chemotherapy and advanced disease, look for a medical oncologist current with NCCN regimens including HER2-targeted therapy and immunotherapy. At CION, every stomach cancer case is reviewed by a multidisciplinary tumour board, with D2 gastrectomy led by Dr. Raghavendra Naik, M.Ch trained at SVIMS Tirupati.

A gastroenterologist plays an important role in diagnosis — performing the endoscopy and biopsy that confirm stomach cancer. But once cancer is confirmed, treatment must be led by oncology: a surgical oncologist with D2 gastrectomy training for surgery, and a medical oncologist for perioperative chemotherapy, targeted therapy, or immunotherapy. A general gastroenterologist alone cannot direct stomach cancer treatment.

It depends on the tumour location and stage. Tumours in the lower stomach typically require subtotal (partial) gastrectomy — about two-thirds of the stomach removed, with the remaining third reconnected to the small intestine. Tumours in the upper stomach or larger tumours may require total gastrectomy — the entire stomach removed, with the oesophagus connected directly to the small intestine. Your surgical team should walk you through your specific case before surgery, including how your eating and digestion will change afterwards. At CION, this conversation happens at the first consultation, not after surgery.

Life after gastrectomy adjusts in real but manageable ways. Most patients move to smaller, more frequent meals (5–6 a day instead of 3). Vitamin B12 absorption is affected, so injections may be needed lifelong. Some patients experience dumping syndrome (rapid emptying of food into the small intestine) initially, which usually improves with dietary adjustments. Weight loss in the first 6 months is common but typically stabilises. The CION post-gastrectomy pathway includes dietitian support, B12 monitoring, and follow-up to manage these adjustments.

D2 gastrectomy refers to the extent of lymph node dissection performed alongside stomach removal — specifically, removing the lymph nodes immediately around the stomach plus the second tier of nodes along the major blood vessels. This level of dissection is the standard of care for gastric cancer worldwide and is associated with significantly better survival than D1 (more limited) dissection. D2 gastrectomy requires specific onco-surgical training. At CION, our D2 gastrectomy pathway is led by Dr. Raghavendra Naik, M.Ch trained at SVIMS Tirupati.

For most Stage II and Stage III stomach cancers, current NCCN guidelines recommend perioperative chemotherapy — typically the FLOT regimen (5-FU, leucovorin, oxaliplatin, docetaxel) given before and after surgery. This approach significantly improves long-term survival compared to surgery alone. The chemotherapy before surgery shrinks the tumour and treats microscopic spread; the chemotherapy after surgery clears any remaining cancer cells. Skipping perioperative chemo for eligible patients represents a meaningful reduction in cure rate.

Advanced stomach cancer treatment has changed substantially in the past decade. HER2-positive gastric cancer (approximately 15–20% of cases) is now treated with trastuzumab combined with chemotherapy as standard first-line therapy. PD-L1-high gastric cancer (CPS ≥5) is now treated with nivolumab combined with chemotherapy. Many centres still skip the HER2 and PD-L1 testing required to identify these patients. CION routinely tests every advanced stomach cancer case for both markers before starting systemic therapy.

Gastrointestinal stromal tumour (GIST) is a completely different cancer from stomach adenocarcinoma — it arises from a different cell type in the stomach wall. GIST is treated with surgery and imatinib (a targeted therapy), NOT with standard stomach cancer chemotherapy regimens, which have no meaningful activity against it. This distinction is critical — getting the diagnosis right at the tumour board stage prevents months of ineffective treatment. CION's pathology and tumour board correctly identify and pathway every GIST diagnosis.

A second opinion is especially valuable for stomach cancer — both because surgical technique (D2 vs limited dissection) directly affects survival, and because perioperative chemotherapy eligibility is often missed. At CION the second opinion is free, written, and yours to keep — our multidisciplinary tumour board reviews your endoscopy, biopsy, imaging, and any existing recommendation, and provides a documented opinion you can take anywhere.

Costs vary by stage and treatment. Subtotal gastrectomy ranges approximately ₹2,50,000 to ₹5,00,000; total gastrectomy ranges ₹3,50,000 to ₹6,50,000; perioperative FLOT chemotherapy adds substantially over the full course; trastuzumab for HER2+ disease and nivolumab for PD-L1-high disease are significantly higher per cycle. For a detailed cost breakdown by treatment type, see our stomach cancer treatment in Hyderabad page. Every CION patient receives a written, itemised cost estimate before treatment begins. Aarogyasri, EMI, and cashless insurance are accepted.