Achieve the Digestive Health You Deserve
Mohammed Saadi, MD – Gastroenterology
BOARD-CERTIFIED GASTROENTEROLOGIST
San Diego Advanced Gastroenterology Associates
Upper GI Tract
Esophagus
- GERD (Gastroesophageal Reflux Disease)
- Esophagitis (inflammation from acid, infection, pills, or allergies)
- Barrett’s Esophagus (precancerous changes due to chronic acid reflux)
- Esophageal Strictures (narrowing, often from scarring or inflammation)
- Achalasia (esophageal motility disorder)
- Esophageal Spasm
- Hiatal Hernia
- Esophageal Cancer
Stomach
- Gastritis (inflammation from H. pylori, NSAIDs, alcohol, etc.)
- Peptic Ulcer Disease (PUD) (stomach or duodenal ulcers)
- Gastroparesis (delayed stomach emptying, often in diabetics)
- Stomach (Gastric) Cancer
- Functional Dyspepsia (indigestion without identifiable cause)
Duodenum (first part of small intestine)
- Duodenal Ulcers
- Celiac Disease (gluten sensitivity causing small intestine damage)
- Duodenitis (inflammation)
Lower GI Tract
Here are common lower GI (gastrointestinal) tract medical conditions, which affect the small intestine (beyond duodenum), colon (large intestine), rectum, and anus:
- Crohn’s Disease – inflammatory bowel disease (IBD) that can affect any GI segment, often the small intestine.
- Small Intestinal Bacterial Overgrowth (SIBO) – excess bacteria in the small intestine causing bloating and diarrhea.
- Intestinal Obstruction – partial or complete blockage.
- Malabsorption Syndromes – like lactose intolerance and chronic pancreatic insufficiency.
Colon (Large Intestine)
- Ulcerative Colitis – IBD causing inflammation in the colon.
- Irritable Bowel Syndrome (IBS) – functional disorder causing pain, bloating, constipation, or diarrhea.
- Diverticulosis/Diverticulitis – small pouches in colon wall that can get inflamed.
- Colorectal Cancer – cancer of the colon or rectum.
- Colonic Polyps – resection via endoscopic approach ( EMR or ESD ).
- Infectious Colitis – caused by bacteria, viruses, or parasites.
- Ischemic Colitis – reduced blood flow to the colon.
Liver and Hepatology
Chronic Liver Diseases
- Hepatitis B & C Viral infections that can lead to chronic liver disease, cirrhosis, and cancer.
- Fatty liver disease/Non-Alcoholic Fatty Liver Disease (NAFLD)/MASH Fat accumulation in the liver not due to alcohol.
- Non-Alcoholic Steatohepatitis (NASH)/metabolic associated steatohepatitis(MASH) A more severe form of MAFLD with inflammation and liver cell damage.
- Malabsorption Syndromes – like lactose intolerance and chronic pancreatic insufficiency.
Cirrhosis & Complications
- Compensated Cirrhosis Early stage, often asymptomatic.
- Decompensated and compensated Cirrhosis Advanced with complications like: - Ascites - Variceal bleeding
- Alcoholic Liver Disease Liver damage from long-term heavy alcohol use.
- Autoimmune Hepatitis The immune system attacks liver cells.
- Primary Biliary Cholangitis (PBC) Autoimmune destruction of small bile ducts.
- Primary Sclerosing Cholangitis (PSC) Chronic inflammation and scarring of bile ducts, often linked to IBD.
- Hemochromatosis Iron overload disorder causing liver damage.
- Wilson’s Disease Copper accumulation in the liver and other organs.
- Alpha-1 Antitrypsin Deficiency Genetic disorder that can cause liver and lung disease.
CONDITIONS TREATED
Upper GI Tract
Lower GI Tract
Liver and Hepatology
Unwavering Confidentiality
We uphold every patient’s privacy with the highest standards of medical confidentiality. All consultations and treatments are handled securely, respectfully, and with complete discretion.
Comprehensive Patient Communication
Our team is dedicated to clear and compassionate communication. We guide each patient through their digestive health journey, explaining conditions such as GERD, IBS, and liver disease in simple and reassuring terms.
Specialized GI Expertise
Led by Dr. Mohammed Saadi, a top board-certified gastroenterologist in San Diego, our clinic delivers evidence-based care for complex digestive disorders — including GERD, IBS, colon conditions, abdominal pain, liver disease, and advanced endoscopic procedures.
Our Guiding Principles for Premier Patient Care​
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Patient Testimonials
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Book a Consultation with a Leading Gastroenterologist in San Diego
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Consultation
Yes, in many cases, you can see a gastroenterologist without a referral, especially if your insurance plan allows it. However, some insurance providers require a referral from a primary care physician to ensure coverage. At our clinic, we are happy to guide you through the process and verify your insurance requirements before your visit. If you’re looking for a trusted gastroenterologist in San Diego, we make the process simple and accessible for all patients.
California is home to several top-rated hospitals for gastroenterology. Rather than focusing on a single institution, it is important to choose a board-certified gastroenterologist with advanced training and a strong track record in diagnosing and treating digestive disorders. Dr. Mohammed Saadi is fellowship-trained at the Mayo Clinic and Temple University, offering expert care in a trusted clinical environment. If you are seeking an experienced gastroenterologist in San Diego, our clinic provides advanced diagnostic and treatment options tailored to your needs.
California is home to several top-rated hospitals for gastroenterology. Rather than focusing on a single institution, it is important to choose a board-certified gastroenterologist with advanced training and a strong track record in diagnosing and treating digestive disorders. Dr. Mohammed Saadi is fellowship-trained at the Mayo Clinic and Temple University, offering expert care in a trusted clinical environment.
Gastroenterologists are in high demand due to the large number of people experiencing digestive conditions such as acid reflux, IBS, abdominal pain, and liver disease. In many areas, limited availability and insurance restrictions may also contribute to longer wait times. At our clinic, we prioritize timely appointments and provide accessible, patient-focused care to ensure you receive the attention you need as quickly as possible.
There is no difference between a GI doctor and a gastroenterologist—both terms refer to the same specialist. A gastroenterologist (or GI doctor) is a physician who has completed extensive training in diagnosing and treating conditions of the digestive system, including the esophagus, stomach, intestines, liver, pancreas, and gallbladder.