About
Dr. Alan Alois Weiss 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 within Vancouver, BC, he is a key member of the local medical community committed to providing comprehensive digestive health care. He adheres to the standards and ethical guidelines set by the College of Physicians and Surgeons of British Columbia (CPSBC), ensuring high-quality, patient-centered care. Dr. Weiss focuses on delivering precise diagnoses and effective treatments for a variety of gastrointestinal conditions, utilizing advanced diagnostic and therapeutic endoscopy in a supportive environment.
He graduated with a Medical Degree from the University of British Columbia in Canada and holds specialty certification as a Gastroenterologist, accredited by the Royal College of Physicians and Surgeons of Canada. His formal training and board certification reflect his expertise and commitment to excellence in digestive health care, enabling him to provide evidence-based management for complex GI disorders.
Dr. Weiss's clinical philosophy is rooted in a commitment to evidence-based practice, patient education, and early, accurate diagnosis through the use of advanced procedures. He emphasizes personalized treatment plans tailored to each patient's unique needs, with a focus on improving quality of life and health outcomes. Fluent in English and Czech, he dedicates himself to serving Vancouver’s diverse community with compassion and professionalism, ensuring each patient receives thorough understanding and support throughout their digestive health journey.
Dr. Alan Weiss diagnoses and treats a wide range of digestive system disorders, including:
Inflammatory Bowel Disease (IBD) Focus
- Indeterminate Colitis & IBD-Unclassified (IBD-U): Cases of IBD, particularly early in the disease course, where it is difficult to definitively distinguish between Crohn's disease and ulcerative colitis based on clinical, endoscopic, and histological features.
- Ulcerative Colitis (Proctitis, Left-sided Colitis, Pancolitis): A chronic inflammatory condition that causes inflammation and ulcers primarily in the lining of the large intestine (colon and rectum), typically presenting with bloody diarrhea, urgency, and abdominal pain.
- Microscopic Colitis (often considered alongside IBD for chronic diarrhea): Though distinct from classic IBD, it's an inflammatory condition of the colon diagnosed by biopsy, causing chronic watery diarrhea.
Liver, Gallbladder, Bile Duct & Pancreatic Disorders
- Alcohol-Related Liver Disease (ARLD): Liver damage caused by excessive alcohol consumption, ranging from fatty liver and alcoholic hepatitis to advanced cirrhosis.
- Autoimmune Liver Diseases (Autoimmune Hepatitis, PBC, PSC): Conditions where the body's immune system mistakenly attacks liver cells (Autoimmune Hepatitis), bile ducts within the liver (Primary Biliary Cholangitis), or larger bile ducts inside and outside the liver (Primary Sclerosing Cholangitis).
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. Alan Weiss.
- Capsule Endoscopy (Small Bowel & Colon): Non-invasive procedure where the patient swallows a vitamin-pill sized camera that takes pictures of the small intestine (for obscure GI bleeding, Crohn's disease) or colon (as an alternative to colonoscopy in select cases).
- Management of Chronic Constipation & Chronic Diarrhea (idiopathic & secondary): Systematic investigation into underlying causes (including motility testing where appropriate) and tailored treatment strategies for persistent constipation or diarrhea not attributed to other major GI diseases.
- Endoscopic Dilation of Gastrointestinal Strictures (Esophageal, Pyloric, Colonic): Procedure to stretch narrowed areas (strictures) in the esophagus (e.g., due to reflux, EoE), stomach outlet (pylorus), small intestine, or colon using balloons or Savary-Gilliard dilators passed through an endoscope.
- Diagnosis & Management of Small Intestinal Bacterial Overgrowth (SIBO) & Intestinal Methanogen Overgrowth (IMO): Utilizing glucose or lactulose breath tests for diagnosis and providing targeted antibiotic/antimicrobial therapy, prokinetics, and dietary advice for SIBO and IMO.
- 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.
- 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.
- Comprehensive Gastroenterology Consultation & Digestive Health Assessment: In-depth assessment of digestive system disorders, including detailed review of medical history, family history, lifestyle factors, physical examination, symptom analysis, and development of a personalized diagnostic and treatment strategy.
Note: This list provides a general overview. Specific procedures and treatments are determined after a thorough evaluation. Discuss with Dr. Weiss 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.
Dr. Weiss practices at a well-equipped gastroenterology clinic located in the vibrant Marpole neighborhood of Vancouver. The facility is situated conveniently within the City Square Shopping Centre, making it accessible for patients. Easily reachable via public transit, the clinic is served by TransLink's SkyTrain Expo, Millennium, and Canada Lines, as well as bus services, SeaBus, and West Coast Express at Waterfront Station. The clinic is fully wheelchair accessible, ensuring ease of access for all patients. Paid parking options are conveniently located nearby, providing additional convenience for those arriving by car. The location is designed to offer a welcoming environment for patients seeking expert digestive health care in Vancouver.
- Are consultations and procedures like endoscopies with Dr. Weiss, a Gastroenterologist, covered by Medical Services Plan (MSP) in BC?
- Medically necessary consultations with a licensed Gastroenterologist like Dr. Weiss, 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. Weiss'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. Weiss, 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. Weiss 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 is generally involved in preparing for a colonoscopy procedure?
- Preparing for a colonoscopy is a critical step to ensure the procedure is effective and safe. Dr. Weiss's office will provide very specific instructions, which must be followed closely. Typically, preparation involves dietary changes for a few days beforehand (e.g., low-residue diet), followed by a clear liquid diet for the 24 hours prior to the exam. The most important part is the bowel cleansing process, which involves drinking a prescribed laxative solution designed to completely empty and clean your colon. This usually starts the evening before and may continue the morning of the procedure. You'll also need to arrange for transportation home, as sedation is commonly used.
- What exactly does a Gastroenterologist like Dr. Weiss 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. Weiss 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.
2407 47TH Ave W
Vancouver, BC V6M 2N3
Phone: (778) 997-9332
The facility is wheelchair accessible.
Dr. Weiss 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. Weiss 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/352138/Weiss%2CAlan