Dr. Seng-Ian Gan – Gastroenterologist | Vancouver, BC

Dr. Seng-Ian Gan is a dedicated Gastroenterologist specializing in the diagnosis and treatment of a wide array of disorders affecting the digestive system in adult patients, and may also see older adolescents for certain conditions. Practicing at a reputable gastroenterology clinic or hospital department in Vancouver, BC, he is a key member of the local medical community. He provides comprehensive care for a wide range of digestive system disorders, including conditions affecting the esophagus, stomach, intestines, liver, and pancreas, utilizing diagnostic and therapeutic endoscopy. His approach is patient-centered, emphasizing understanding each individual’s unique health needs and delivering compassionate, evidence-based care. The practice is committed to supporting patients through education, advanced diagnostics, and minimally invasive procedures to improve their digestive health and overall quality of life.

He graduated with his Medical Degree from the University of British Columbia (Canada) and holds specialty certification as a Gastroenterologist. His credentials include certification from the Royal College of Physicians and Surgeons of Canada, reflecting his commitment to maintaining high standards of medical excellence. His ongoing professional development ensures he stays current with the latest advancements in digestive health care and endoscopic techniques.

Dr. Gan’s clinical philosophy revolves around providing evidence-based, personalized digestive health care. He emphasizes patient education on gastrointestinal conditions, lifestyle modifications, and early, accurate diagnosis through advanced procedures. His goal is to collaborate closely with each patient, developing tailored treatment plans that prioritize safety, effectiveness, and comfort. Serving the Vancouver community, he is dedicated to improving patients’ lives through compassionate, comprehensive, and innovative digestive care delivered in English.

Dr. Seng-Ian Gan diagnoses and treats a wide range of digestive system disorders, including:

Liver, Gallbladder, Bile Duct & Pancreatic Disorders

• Pancreatitis (Acute Recurrent & Chronic): Inflammation of the pancreas that can be sudden and severe (acute), recurrent, or long-lasting (chronic), causing significant abdominal pain and digestive enzyme deficiencies.
• Pancreatic Cysts, Tumors & Pancreatic Insufficiency (Evaluation & Co-management): Evaluation of fluid-filled sacs (cysts) or growths (tumors) on or in the pancreas, and management of exocrine pancreatic insufficiency (EPI) where the pancreas doesn't produce enough digestive enzymes.

Functional Gastrointestinal & Motility Disorders

• Functional Dyspepsia & Epigastric Pain Syndrome: Persistent or recurrent pain or discomfort centered in the upper abdomen (dyspepsia) or specifically in the epigastric region, without an identifiable structural cause after investigation.
• Cyclic Vomiting Syndrome: A disorder characterized by recurrent, stereotypical episodes of intense nausea and vomiting lasting for hours or days, with symptom-free intervals in between.

Esophageal, Stomach & Upper GI Disorders

• Gastroesophageal Reflux Disease (GERD) / Acid Reflux / Heartburn: Chronic condition where stomach acid frequently flows back into the esophagus, causing heartburn, regurgitation, chest pain, and potential complications like esophagitis.
• Esophageal Motility Disorders (e.g., Achalasia, Esophageal Spasms, Nutcracker Esophagus): Disorders affecting the coordinated muscle movements of the esophagus required for swallowing, leading to symptoms like dysphagia (difficulty swallowing), chest pain, and regurgitation.

This list is not exhaustive. For personalized advice regarding your specific digestive condition, please consult with Dr. Seng-Ian Gan.

• Helicobacter pylori (H. pylori) Testing & Eradication Therapy: Diagnosis of H. pylori infection using breath tests, stool tests, or endoscopic biopsies, and providing appropriate antibiotic regimens for eradication to treat ulcers and gastritis.
• Chromoendoscopy & Advanced Imaging Techniques (e.g., NBI, FICE): Use of special dye sprays (chromoendoscopy) or electronic light filters (Narrow Band Imaging, Fuji Intelligent Chromo Endoscopy) during endoscopy to enhance visualization of mucosal patterns and improve detection of subtle lesions or precancerous changes.
• Colonoscopy (Screening, Diagnostic, Surveillance) & Polypectomy: Comprehensive examination of the entire colon (large intestine) using a colonoscope to detect and remove precancerous polyps, screen for and diagnose colorectal cancer, evaluate symptoms, and diagnose other colonic conditions like colitis or diverticular disease.
• ERCP (Endoscopic Retrograde Cholangiopancreatography) - Diagnostic & Therapeutic: Specialized procedure combining upper endoscopy and X-rays to diagnose and treat problems of the bile and pancreatic ducts, such as gallstone removal from bile duct, stent placement for strictures or leaks, and sphincterotomy.
• Management of Common & Chronic Digestive Symptoms: Investigating and treating common but potentially disruptive digestive symptoms such as heartburn, acid reflux, bloating, abdominal pain, cramping, excessive gas, constipation, diarrhea, difficulty swallowing (dysphagia), and unexplained weight loss.
• Screening & Prevention Strategies for Gastrointestinal Cancers: Risk assessment and counseling on screening for colorectal cancer, esophageal cancer (in Barrett's esophagus), gastric cancer, and liver cancer (in cirrhosis), including FIT testing and colonoscopy recommendations.
• Upper Endoscopy (EGD - Esophagogastroduodenoscopy) with Biopsy & Interventions: Diagnostic and therapeutic procedure to examine the esophagus, stomach, and duodenum using a flexible tube with a camera. Allows for targeted biopsies, polyp removal (polypectomy), dilation of strictures, control of bleeding (hemostasis), and foreign body removal.

Note: This list provides a general overview. Specific procedures and treatments are determined after a thorough evaluation. Discuss with Dr. Gan for care relevant to your specific condition.

All medical and surgical services (if applicable) are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of British Columbia (CPSBC) and relevant gastroenterological care guidelines. Contact the clinic or your referring physician regarding new patient intake and referral processes.

Located within a well-equipped gastroenterology clinic in Vancouver’s Fairview neighbourhood, Dr. Gan’s practice is easily accessible to patients across the city. The facility is situated near Granville Bridge, providing convenient access from various parts of Vancouver. Public transit options are abundant, with TransLink services including SkyTrain (Expo, Millennium, Canada Lines), bus, SeaBus, and West Coast Express (Waterfront station), making commuting straightforward. The clinic’s premises are wheelchair accessible, ensuring comfort for all patients. Paid parking options are conveniently located nearby, offering easy and flexible options for those arriving by car. The environment is designed to promote a welcoming, professional, and patient-focused experience for individuals seeking digestive health care in Vancouver.

Are consultations and procedures like endoscopies with Dr. Gan, a Gastroenterologist, covered by Medical Services Plan (MSP) in BC?

Medically necessary consultations with a licensed Gastroenterologist like Dr. Gan, as well as most diagnostic procedures (e.g., endoscopies for investigating symptoms, biopsies for medical reasons) and treatments for provincially insured digestive conditions (e.g., IBD, celiac disease, screening colonoscopies as per provincial guidelines, liver disease management), are generally covered by Medical Services Plan (MSP) in BC when a referral from a family doctor or another specialist is in place. Procedures considered purely for screening outside of guidelines, or for non-medical reasons, and some advanced technologies or specific drug therapies might have different coverage. It's crucial to discuss coverage specifics for any proposed treatment or procedure with Dr. Gan's office, the hospital/clinic's financial services, or Medical Services Plan (MSP) beforehand.

Do I need a referral from my family doctor to see Dr. Gan, a Gastroenterologist?

Yes, in nearly all cases, a referral from your family physician or another specialist (such as an internist or surgeon) is required to schedule an appointment with a Gastroenterologist like Dr. Gan for services covered by the provincial health plan. Gastroenterological issues often require initial assessment and preliminary investigations by your primary care provider. The referral ensures that a specialist consultation is appropriate, helps with prioritizing appointments, and facilitates coordinated care, including the transfer of relevant medical information.

What are some common procedures a Gastroenterologist like Dr. Gan typically performs?

Gastroenterologists like Dr. Gan are highly skilled in performing a range of endoscopic procedures. The most common are upper endoscopy (also called EGD or gastroscopy) to examine the esophagus, stomach, and duodenum, and colonoscopy to visualize the entire colon. During these procedures, He can take biopsies (small tissue samples for analysis), remove polyps (which can prevent colon cancer), dilate narrowed areas (strictures), control bleeding, and place feeding tubes. Other procedures may include flexible sigmoidoscopy (examining the lower colon), capsule endoscopy (swallowing a tiny camera to see the small intestine), and more specialized interventions like ERCP or EUS depending on their training and practice focus. Many also specialize in managing specific areas like hepatology (liver disease) or IBD.

What's the difference between Irritable Bowel Syndrome (IBS) and Inflammatory Bowel Disease (IBD)? Can Dr. Gan diagnose and treat both?

Yes, a Gastroenterologist like Dr. Gan can diagnose and treat both IBS and IBD, but they are very different conditions. IBD, which includes Crohn's disease and ulcerative colitis, is characterized by chronic inflammation and physical damage (like ulcers and strictures) to the digestive tract, visible during endoscopy and on biopsies. It's an autoimmune-related condition. IBS, on the other hand, is a functional gut disorder, meaning the GI tract doesn't work correctly, but there's no visible inflammation or damage on standard tests. IBS causes symptoms like abdominal pain, bloating, and altered bowel habits. While IBS can significantly impact quality of life, it doesn't cause the destructive inflammation seen in IBD. Diagnosis involves different criteria and investigations for each.

What exactly does a Gastroenterologist like Dr. Gan specialize in?

A Gastroenterologist, often called a GI specialist, is a medical doctor who has undergone extensive specialized training beyond medical school and internal medicine residency to diagnose, treat, and manage diseases of the entire digestive or gastrointestinal (GI) system. This includes the esophagus, stomach, small intestine, colon (large intestine), rectum, anus, as well as associated organs like the liver, gallbladder, bile ducts, and pancreas. He is a Gastroenterologist specializing in the comprehensive medical and procedural management of digestive system disorders. Dr. Gan is skilled in performing endoscopic procedures (like gastroscopy and colonoscopy) for both diagnosis and treatment, interpreting complex diagnostic tests, and developing comprehensive management plans for a wide variety of acute and chronic digestive health issues.

How does a Gastroenterologist like Dr. Gan approach the management of Inflammatory Bowel Disease (IBD)?

The management of IBD (Crohn's disease and ulcerative colitis) by a Gastroenterologist like Dr. Gan is a highly individualized and long-term process. The primary goals are to induce and then maintain remission (control inflammation), alleviate symptoms, prevent complications, and improve the patient's overall quality of life. Treatment strategies often involve a combination of medications, which can include aminosalicylates (5-ASAs), corticosteroids (for acute flare-ups), immunomodulators (e.g., azathioprine, methotrexate), and increasingly, biologic therapies or small molecule drugs that target specific inflammatory pathways. Regular monitoring through clinical assessment, blood tests, stool tests (like fecal calprotectin), and endoscopic procedures is crucial to track disease activity and adjust treatment as needed. Nutritional counseling and lifestyle advice are also integral parts of comprehensive IBD care.

5153-2775 Laurel St
Vancouver, BC V5Z 1M9

Phone: (604) 875-5371 | Fax: (604) 628-2419

The facility is wheelchair accessible.

Dr. Gan is a licensed Gastroenterologist regulated by the College of Physicians and Surgeons of British Columbia (CPSBC) under the Health Professions Act in BC. A referral from a family physician or appropriate specialist is typically required for consultations with Dr. Gan for services covered by the provincial health plan.

Verify registration with the College of Physicians and Surgeons of British Columbia (CPSBC): https://www.cpsbc.ca/public/registrant-directory/search-result/323859/Gan%2CSeng-Ian