Best Gastroenterologist in Delhi: Trusted Expert Care for Digestive and Liver Disorders

When digestive discomfort becomes a recurring concern — whether it is persistent acidity, unexplained weight loss, chronic liver disease, or something more complex — the quality of specialist care you receive can make all the difference. Gastroenterology is a highly specialized branch of medicine, and choosing the right expert is not simply a matter of convenience; it is a decision that directly shapes your health outcomes.

Delhi NCR, home to some of India’s most advanced medical institutions, offers patients access to world-class gastroenterological care. At the forefront of this field is Dr. Hitendra K Garg — Senior Consultant Gastroenterologist, Hepatologist, Therapeutic Endoscopist, and Transplant Hepatologist at Indraprastha Apollo Hospital, Sarita Vihar, New Delhi. With over 18 years of clinical experience, internationally recognized research credentials, and a patient-centered approach, Dr. Garg has earned his reputation as one of the best gastroenterologists in Delhi NCR.

This article is designed to help you understand when to consult a gastroenterology specialist, what conditions and treatments fall under this specialty, and why experienced, evidence-based care matters for your long-term digestive and liver health.

What Is a Gastroenterologist and What Do They Treat?

A gastroenterologist is a physician with specialized training in the diagnosis, management, and treatment of disorders affecting the gastrointestinal (GI) tract — a system that includes the esophagus, stomach, small intestine, large intestine (colon), rectum, liver, gallbladder, bile ducts, and pancreas.

Unlike a general physician, a gastroenterologist completes an additional three to four years of superspecialty training (DM in Medical Gastroenterology in India) after their postgraduate medical degree. This extended training equips them with deep expertise in both diagnostic procedures — such as endoscopy, colonoscopy, and endoscopic ultrasound — and the medical management of complex GI and liver conditions.

A hepatologist is a subspecialist within gastroenterology who focuses specifically on liver diseases, including hepatitis, cirrhosis, fatty liver disease, and conditions requiring liver transplant evaluation.

A therapeutic endoscopist combines diagnostic and interventional skills to treat GI conditions using minimally invasive endoscopic techniques, often eliminating the need for open surgery.

Common Digestive Disorders Treated by a Gastroenterologist

The breadth of conditions managed by a gastroenterologist is extensive. Below are the major categories of disorders that warrant specialist evaluation:

Esophageal and Stomach Disorders

• Gastroesophageal Reflux Disease (GERD): Chronic acid reflux causing heartburn, regurgitation, and esophageal inflammation. Left untreated, it can lead to Barrett’s esophagus and increase the risk of esophageal cancer.
• Peptic Ulcer Disease: Open sores in the stomach lining or the proximal small intestine, often associated with H. pylori infection or NSAID use.
• Achalasia: A motility disorder of the esophagus where the lower esophageal sphincter fails to relax, causing difficulty swallowing.
• Esophageal and Gastric Cancers: Requiring early diagnosis through endoscopic surveillance.

Small and Large Intestinal Disorders

• Irritable Bowel Syndrome (IBS): A functional disorder characterized by chronic abdominal pain, bloating, and altered bowel habits.
• Inflammatory Bowel Disease (IBD): Includes Crohn’s disease and ulcerative colitis, both involving chronic inflammation of the digestive tract.
• Celiac Disease: An autoimmune condition triggered by gluten ingestion, causing small intestinal damage.
• Colorectal Cancer and Polyps: Precancerous and cancerous growths in the colon or rectum, detectable through colonoscopy.

Liver, Gallbladder, and Pancreatic Disorders

• Non-Alcoholic Fatty Liver Disease (NAFLD) and NASH: Increasingly common conditions linked to obesity, diabetes, and metabolic syndrome.
• Viral Hepatitis (B and C): Infections that can cause acute and chronic liver inflammation.
• Liver Cirrhosis: End-stage scarring of the liver with serious systemic complications.
• Gallstones and Biliary Obstruction: Requiring ERCP or other interventional procedures.
• Acute and Chronic Pancreatitis: Inflammation of the pancreas ranging from mild to life-threatening.
• Pancreatic Cancer: Needing timely diagnosis through advanced imaging and endoscopic ultrasound.

Signs You Should See a Gastroenterologist in Delhi

Many patients delay specialist consultation, attributing their symptoms to stress or dietary habits. However, certain symptoms demand prompt gastroenterological evaluation:

If you experience any of the above, consulting a qualified gastroenterologist in Delhi NCR — rather than managing symptoms independently — is strongly advised.

Advanced Gastroenterology Treatments Available in Delhi

Modern gastroenterology has evolved far beyond conventional medication and surgery. At centers like Indraprastha Apollo Hospital, patients have access to a full spectrum of advanced diagnostic and therapeutic options:

Diagnostic Endoscopy

Upper GI endoscopy (esophagogastroduodenoscopy or OGD scopy) and colonoscopy remain the gold standard for evaluating the GI mucosa, detecting polyps, ulcers, tumors, and sources of bleeding. These are performed under conscious sedation, making them well-tolerated by most patients.

Endoscopic Retrograde Cholangiopancreatography (ERCP)

ERCP is a specialized procedure combining endoscopy and fluoroscopy to diagnose and treat conditions of the bile ducts and pancreatic duct. It is used for removing bile duct stones, placing stents in strictures, and managing complications of pancreatitis — all without open surgery.

Endoscopic Ultrasound (EUS)

EUS is a sophisticated technique that places an ultrasound transducer directly adjacent to the GI wall, allowing high-resolution imaging of structures that conventional ultrasound cannot adequately visualize — including the pancreas, bile ducts, liver, and surrounding lymph nodes. EUS also enables tissue sampling (fine needle aspiration or biopsy) of lesions, staging of GI cancers, and drainage of pancreatic pseudocysts.

Dr. Hitendra K Garg has received specialized international training in interventional EUS, having completed a six-week fellowship in Mumbai and a three-week hands-on program in Montreal, Canada, under Professor Anand Sahai — one of the world’s leading authorities in this field.

Per-Oral Endoscopic Myotomy (POEM)

POEM is a minimally invasive endoscopic procedure for treating achalasia — a condition where the lower esophageal sphincter fails to relax, making swallowing difficult. Using a flexible endoscope inserted through the mouth, the specialist makes a small incision in the esophageal wall and cuts the problematic muscle, restoring normal swallowing without any external incisions.

Endoscopic Mucosal Resection (EMR) and Endoscopic Submucosal Dissection (ESD)

These are advanced endoscopic techniques for removing superficial GI tumors, large polyps, and precancerous lesions without surgery. They require a high level of technical skill and are performed only by experienced therapeutic endoscopists.

Capsule Endoscopy

A small wireless camera in a capsule form is swallowed by the patient and transmits thousands of images of the small intestine — a region not accessible by conventional endoscopy. It is particularly useful for diagnosing obscure GI bleeding, Crohn’s disease in the small bowel, and small intestinal tumors.

Liver Disease Diagnosis and Treatment in Delhi

Liver diseases represent a significant and growing health burden in India. The liver — the body’s largest internal organ — performs over 500 critical functions, from metabolizing drugs and nutrients to producing clotting factors and filtering toxins. Damage to the liver, if undetected or inadequately treated, progresses silently and can lead to cirrhosis, liver failure, or hepatocellular carcinoma (liver cancer).

Evaluating Liver Disease

A hepatologist’s evaluation typically includes a combination of:

• Blood Tests: Liver function tests (LFTs), viral hepatitis markers (HBsAg, anti-HCV), serum albumin, prothrombin time, and tumor markers such as AFP.
• Imaging: Ultrasound abdomen, contrast-enhanced CT scan, or MRI/MRCP for detailed liver and bile duct assessment.
• Elastography (FibroScan): A non-invasive technique that measures liver stiffness as a surrogate for fibrosis, helping stage liver disease without the need for a biopsy in most cases.
• Liver Biopsy: When non-invasive methods are inconclusive, a tissue sample provides definitive histological diagnosis.

Conditions Managed by Dr. Garg as a Hepatologist

• Fatty liver disease (NAFLD/NASH) and metabolic-associated steatotic liver disease (MASLD)
• Chronic hepatitis B and C — with current antiviral regimens achieving cure rates above 95% for Hepatitis C
• Alcohol-related liver disease and counseling
• Autoimmune hepatitis, primary biliary cholangitis, and primary sclerosing cholangitis
• Drug-induced liver injury
• Liver cirrhosis and its complications: ascites, hepatic encephalopathy, variceal bleeding, spontaneous bacterial peritonitis
• Hepatocellular carcinoma (liver cancer) — staging and treatment planning
• Pre-transplant and post-transplant hepatology

As a Transplant Hepatologist at Indraprastha Apollo Hospital, Dr. Garg is involved in the evaluation, preparation, and long-term management of patients undergoing liver transplantation — one of the most complex interventions in modern medicine.

Fatty Liver, GERD, and Pancreatitis: A Closer Look

Fatty Liver Disease

Non-alcoholic fatty liver disease (NAFLD) is now the most common liver condition globally, and India is witnessing an epidemic rise driven by changing dietary habits, sedentary lifestyles, and increasing rates of type 2 diabetes and obesity. The majority of patients with simple fatty liver (hepatic steatosis) remain asymptomatic for years, and the condition is often discovered incidentally during routine ultrasound or blood tests.

Without intervention, approximately 20% of patients with NAFLD progress to a more aggressive form called non-alcoholic steatohepatitis (NASH), which carries a risk of advancing to cirrhosis and liver cancer. Specialist evaluation and lifestyle-based management — alongside treatment of underlying metabolic conditions — remain the cornerstone of care.

GERD and Esophageal Disease

GERD affects a substantial proportion of urban adults in India. While lifestyle modifications and proton pump inhibitors (PPIs) adequately control symptoms in many, patients with refractory GERD, Barrett’s esophagus, or suspected esophageal motility disorders require endoscopic assessment to rule out complications and guide treatment.

High-resolution esophageal manometry and pH-impedance monitoring are functional tests available at advanced centers for patients with atypical or refractory symptoms.

Pancreatitis

Acute pancreatitis ranges from a self-limiting condition to a life-threatening illness with multi-organ failure. Chronic pancreatitis is associated with persistent abdominal pain, malabsorption, diabetes, and an increased risk of pancreatic cancer. Both conditions require specialist management — including imaging, nutritional support, pain management, and in selected cases, endoscopic or surgical intervention.

EUS-guided celiac plexus block is an effective minimally invasive option for pain relief in patients with chronic pancreatitis who have not responded to conventional therapy.

Why Early Diagnosis Matters in Gastroenterology

One of the defining principles of modern gastroenterology is that most serious GI and liver conditions — including colorectal cancer, hepatocellular carcinoma, and esophageal cancer — are far more treatable when detected early. Screening and surveillance programs are well-established for high-risk individuals:

• Colorectal cancer screening: Colonoscopy is recommended for all adults from age 45, or earlier for those with a family history of colon cancer or inflammatory bowel disease.
• Hepatocellular carcinoma surveillance: Six-monthly ultrasound and AFP testing for patients with cirrhosis or chronic hepatitis B.
• Barrett’s esophagus surveillance: Periodic endoscopy for patients with known Barrett’s to detect dysplastic changes before they progress to cancer.

Patients who engage in regular specialist follow-up and adhere to surveillance protocols have measurably better outcomes. Delaying consultation — whether out of hesitation, symptom normalization, or access barriers — is one of the most common and preventable reasons for late-stage diagnoses.

Why Choose Dr. Hitendra K Garg: Credentials, Experience, and Approach

When evaluating any specialist, patients rightly ask: what sets this doctor apart? In the case of Dr. Hitendra K Garg, the answer lies in a combination of academic credentials, clinical breadth, procedural expertise, and a genuine commitment to patient-centered care.

Academic and Clinical Qualifications

• MBBS — Banaras Hindu University, Varanasi (1999)
• MD (General Medicine) — Banaras Hindu University, Varanasi (2003)
• DM (Medical Gastroenterology) — GB Pant Hospital, New Delhi (2009)
• Fellowship in Interventional EUS — Institute of Advanced Endoscopy, Mumbai (2011)
• Hands-on EUS Fellowship — Montreal, Canada (under Prof. Anand Sahai)

Institutional Experience

Prior to his current role, Dr. Garg served as Assistant Professor (Hepatology) at the Institute of Liver and Biliary Sciences (ILBS), New Delhi — one of India’s premier liver disease referral centers — for over four years. This academic appointment deepened his expertise in complex hepatological conditions and transplant medicine.

He is currently practicing as Senior Consultant Gastroenterologist, Hepatologist, Therapeutic Endoscopist, and Transplant Hepatologist at Indraprastha Apollo Hospital, Sarita Vihar — a hospital consistently ranked among the top multispecialty healthcare institutions in the country.

Research and Academic Contributions

Dr. Garg has authored more than 20 peer-reviewed publications in national and international medical journals covering liver disease, endoscopy, and GI disorders. He has presented research at numerous prestigious conferences, including a presentation in the plenary session of the American Association for the Study of Liver Diseases (AASLD) — one of the most competitive scientific forums in global hepatology.

He is a registered member of:

• Indian Society of Gastroenterology (ISG)
• Society of Gastrointestinal Endoscopy of India (SGEI)
• Delhi Medical Council (DMC Registration No. 24555)

Procedural Expertise

Dr. Garg’s clinical practice spans the full range of diagnostic and therapeutic endoscopic procedures, including:

• Upper GI endoscopy and colonoscopy
• ERCP with stone extraction, stenting, and sphincterotomy
• Endoscopic ultrasound (EUS) with fine needle aspiration/biopsy
• Per-Oral Endoscopic Myotomy (POEM) for achalasia
• Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD)
• Esophageal and colonic stenting
• Variceal band ligation and sclerotherapy
• EUS-guided celiac plexus block for chronic pain
• Percutaneous liver biopsy
• Paracentesis and management of ascites

A particularly notable case in his clinical career involved the endoscopic removal of an exceptionally large (12–15 cm) polypoidal lesion occupying two-thirds of the duodenal lumen in a post-kidney transplant patient — a five-hour procedure that avoided open surgery entirely, with an uneventful recovery.

Patient-Centered Approach

Dr. Garg is known among his patients for attentive listening, clear communication, and the ability to explain complex medical conditions in a manner that is both accurate and accessible. He is fluent in English and Hindi, ensuring that patients from diverse linguistic backgrounds can engage comfortably in their care discussions.

With a recommendation score of over 80% across verified patient feedback platforms, and a patient base that spans Delhi, the broader NCR region, and international referrals, his practice reflects the trust that patients and referring physicians place in his clinical judgment.

Advanced Technology and the Standard of Care at Apollo Hospital

Indraprastha Apollo Hospital, where Dr. Garg practices, is equipped with state-of-the-art diagnostic and interventional technology that supports the highest standards of gastroenterological care:

• High-definition video endoscopy systems with narrow-band imaging (NBI) for enhanced mucosal visualization
• Linear and radial endoscopic ultrasound processors for interventional EUS
• Digital fluoroscopy suites for ERCP procedures
• FibroScan (transient elastography) for non-invasive liver fibrosis assessment
• Advanced cross-sectional imaging (MDCT, 3T MRI, MRCP)
• Dedicated hepatology and GI oncology multidisciplinary team meetings

The integration of technology with clinical expertise means that patients benefit from accurate diagnosis, reduced procedural risks, and faster recovery — particularly relevant for those who may have previously been advised to undergo open surgical procedures.

Tips for Maintaining Digestive and Liver Health

While specialist care is essential when problems arise, prevention and early lifestyle modification remain among the most powerful tools available. Gastroenterologists broadly recommend the following:

Dietary Habits

• Consume a diet rich in fiber, vegetables, whole grains, and lean proteins
• Limit processed foods, refined sugars, and saturated fats — all of which are linked to fatty liver and metabolic syndrome
• Reduce consumption of red and processed meats, associated with elevated colorectal cancer risk
• Maintain adequate hydration; insufficient fluid intake worsens constipation

Alcohol and Substance Use

• Limit alcohol consumption strictly; excessive intake is a leading cause of liver cirrhosis and GI mucosal injury
• Avoid self-medication with NSAIDs or herbal preparations without medical guidance — both can cause gastric ulcers and drug-induced liver injury

Weight and Metabolic Control

• Maintain a healthy body weight; even a 7–10% reduction in body weight significantly improves fatty liver disease
• Manage diabetes, hypertension, and dyslipidemia proactively — these are the primary drivers of metabolic liver disease

Screening and Vigilance

• Do not ignore persistent GI symptoms or rationalize them as trivial
• Adhere to age-appropriate cancer screening programs
• Report family history of colorectal cancer, liver disease, or pancreatic cancer to your physician

Vaccinations

• Ensure vaccination against Hepatitis A and B, which can be prevented through immunization

Frequently Asked Questions (FAQs)

Q1. When should I see a gastroenterologist instead of a general physician?

You should consult a gastroenterologist when symptoms are persistent, recurrent, or not responding to general treatment — for instance, acid reflux lasting more than two weeks despite medication, unexplained weight loss, blood in the stool, jaundice, chronic diarrhea or constipation, or abnormal liver function tests. A gastroenterologist can perform diagnostic procedures such as endoscopy or colonoscopy that go beyond the scope of general practice.

Q2. What is the difference between a gastroenterologist and a hepatologist?

A gastroenterologist specializes in the entire digestive system, including the esophagus, stomach, intestines, liver, gallbladder, and pancreas. A hepatologist is a subspecialist within gastroenterology who focuses exclusively on liver diseases. Dr. Hitendra K Garg is trained and actively practicing as both, making him equipped to manage the full spectrum of GI and liver conditions.

Q3. Is endoscopy a painful procedure? How should I prepare?

Upper GI endoscopy and colonoscopy are routinely performed under conscious sedation or monitored anesthesia care, which means most patients experience little to no discomfort during the procedure and have no memory of it afterward. Preparation typically involves fasting for 6–8 hours before an upper endoscopy, or a bowel preparation regimen the day before colonoscopy. Your specialist will provide detailed instructions based on your specific procedure.

Q4. What is ERCP and when is it recommended?

ERCP (Endoscopic Retrograde Cholangiopancreatography) is a specialized endoscopic procedure used to diagnose and treat problems in the bile ducts and pancreatic duct. It is typically recommended for bile duct stones causing obstruction or jaundice, biliary strictures (narrowing), primary sclerosing cholangitis, and certain complications of pancreatitis such as ductal leaks or strictures. It is a minimally invasive alternative to surgery for many of these conditions.

Q5. Can fatty liver disease be reversed? What is the treatment?

In the early stages — before significant fibrosis or cirrhosis has developed — fatty liver disease is indeed reversible. The primary treatment involves structured lifestyle changes: gradual weight loss (targeting 7–10% of body weight), adoption of a low-glycemic, low-fat diet, regular aerobic exercise, and strict avoidance of alcohol. Underlying conditions such as type 2 diabetes, dyslipidemia, and hypertension must be actively managed. Specialist follow-up with periodic liver assessment (FibroScan, blood tests) is recommended to monitor treatment response.

Q6. What conditions does an endoscopic ultrasound (EUS) diagnose?

EUS is particularly valuable for evaluating pancreatic lesions and tumors, bile duct stones not visible on conventional imaging, submucosal GI tumors, staging of esophageal and gastric cancers, unexplained chronic pancreatitis, and enlarged lymph nodes in the mediastinum or abdomen. It also enables tissue biopsy of deep structures that cannot be reached by conventional needle techniques.

Q7. How is liver cirrhosis managed, and what complications require urgent attention?

Liver cirrhosis is managed by treating the underlying cause (e.g., antiviral therapy for hepatitis B or C, alcohol abstinence, weight management for fatty liver), preventing and treating complications, and monitoring for hepatocellular carcinoma. Complications requiring prompt medical attention include: sudden increase in abdominal swelling (ascites), vomiting of blood or black tarry stools (variceal bleeding), confusion and altered consciousness (hepatic encephalopathy), fever with abdominal pain (spontaneous bacterial peritonitis), and jaundice with rapid deterioration. Patients with advanced cirrhosis should be evaluated for liver transplantation.

Book a Consultation with Dr. Hitendra K Garg

If you are experiencing digestive discomfort, abnormal liver test results, or have been referred for a specialized GI procedure, do not delay seeking expert care. Early diagnosis and timely intervention are the most effective means of preventing progression of most GI and liver conditions.

Dr. Hitendra K Garg — Senior Consultant Gastroenterologist, Hepatologist, and Therapeutic Endoscopist at Indraprastha Apollo Hospital, Sarita Vihar, New Delhi — offers comprehensive evaluation and personalized treatment plans across the full spectrum of gastroenterological and hepatological conditions.

Schedule your appointment:

• Visit: drhitendrakgarg.com
• Hospital: Indraprastha Apollo Hospital, Sarita Vihar, New Delhi

Conclusion

Digestive and liver health are not conditions to be managed in isolation or left unaddressed out of hesitation. Whether you are dealing with persistent acidity, abnormal liver enzymes, a newly diagnosed chronic liver condition, or require an advanced endoscopic procedure, accessing expert care from a qualified gastroenterologist in Delhi NCR is the most important step you can take.

Dr. Hitendra K Garg brings together over 18 years of clinical experience, advanced subspecialty training in hepatology and therapeutic endoscopy, internationally recognized research contributions, and a genuine commitment to patient welfare. Practicing at one of Delhi’s most advanced medical institutions, he is positioned to offer you the diagnostic precision and treatment quality that complex GI and liver conditions demand.

Your digestive health is worth more than a delay. Consult a specialist today.