Houston’s Top Board-Certified Gastroenterologists

For more than ten years, Dr. Shabbir Jamali and his family have been a part of the Houston community and have made Northwest Houston home. His dedication to his patients is reflected in the pride he takes in his gastroenterology medical practice at the Gastroenterology Diagnostic Center of Tomball where he has practiced for over two decades.

Dr. Jamali completed his Internal Medicine Residency at Wayne State Medical Center in Detroit Michigan in 1987. During his time in residency, he was awarded the honor of ‘Best Intern of the Year’ for his outstanding performance in his work and studies. He then completed a Gastroenterology Fellowship at the University of Connecticut Health Center at Farmington, Connecticut, and was later board certified in both internal medicine and gastroenterology by the American Board of Internal Medicine (ABIM.)

Over the years, Dr. Jamali has been an active member of many national and regional professional societies and associations including: American College of Gastroenterology (ACG), American Society of Gastrointestinal Endoscopy, (ASGE), Texas Society of Gastrointestinal Endoscopy (TSGE), Texas Gulf Coast Gastrointestinal Society, Texas Medical Association (TMA), and the Harris County Medical Society (HCMS). Involvement at all levels of the medical community allows Dr. Jamali to stay abreast of the latest research and technical developments in the field.

Dr. Ali Hashmi completed medical school from Aga Khan University. He completed his Internal Medicine Residency and Gastroenterology Fellowship from Baylor College of Medicine. After finishing fellowship, he joined the faculty of University of Texas Medical Branch (UTMB) in Galveston as an Assistant Professor. After practicing at UTMB for two years, Dr. Hashmi moved to Boston, Massachusetts, where he worked at the Mass General and Brigham community physician organization for four years. In 2021, Dr. Hashmi moved back to Houston, Texas, to join the Gastroenterology Diagnostic Center.

During his faculty tenure at UTMB, Dr. Hashmi actively participated in clinical research and authored numerous manuscripts. He was also a pioneer of the GI Surgical Conference, a multi-disciplinary conference focused on complicated patients and procedures.

Dr. Hashmi is a Board Certified Gastroenterologist and is an active member of the following GI societies:

• American Gastroenterological Association
• American College of Gastroenterology
• American Society of Gastrointestinal Endoscopy
• Texas Society of Gastrointestinal Endoscopy
• Texas Medical Association

In his free time, Dr. Hashmi likes to play squash and explore new biking trails with his two daughters.

Taher Jamali, MD is a board-certified gastroenterologist specializing in digestive health, liver disease, and advanced endoscopic procedures. He is dedicated to providing comprehensive, patient-centered care with an emphasis on personalized treatment plans, clear communication, and long-term wellness.

Dr. Jamali completed his Gastroenterology and Hepatology fellowship training at Henry Ford Hospital, where he served as Chief Gastroenterology Fellow. He then moved on to the University of Texas in Houston for advanced endoscopy training for advanced GI procedures .He completed his Internal Medicine residency at Baylor College of Medicine and earned his medical degree from The University of Texas Medical Branch. He graduated summa cum laude from The University of Texas at Austin with honors in Biology.

With advanced training in the diagnosis and treatment of gastrointestinal disorders, Dr. Jamali manages a wide range of conditions including acid reflux, abdominal pain, irritable bowel syndrome, inflammatory bowel disease, liver disorders, pancreaticobiliary disease, colon cancer screening, and complex endoscopic conditions.

Known for his compassionate approach and attention to detail, Dr. Jamali prioritizes making patients feel comfortable, informed, and confident throughout their care journey. He combines the latest evidence-based treatments with a thoughtful, individualized approach to help patients achieve better digestive health and overall well-being.

Outside of medicine, Dr. Jamali values time with family, sports including tennis and pickleball , lifelong learning and serving the community .

Ms. Houselog is a certified nurse practitioner at Gastroenterology Diagnostic Center. Her expertise includes everything regarding solid organ transplants and gastroenterology. She is motivated to ensure she provides sympathetic and high-quality care to all of her patients. She works hard to create trust-based relationships with all her patients by assessing the situation and then explaining the best ways her patients can be treated.

Ms. Houselog graduated from South Dakota University, receiving her master’s in arts and science in nursing. In addition, she received her board licensing as a nurse practitioner. She later worked as a nurse practitioner at Avera Gastroenterology in which she treated patients with issues related to the GI.

Ms. Houselog has moved to the Houston area to get closer to her family and children while also doing what she loves the most.

Originally born in Alabama, Lara has lived in Georgia, Florida, and spent over 10 years in Berlin, Germany. She earned her Bachelor’s degree in Nursing from Palm Beach Atlantic University in Florida. After graduating, she moved to Texas to be near her family in the Houston area.

She has been a registered nurse since 2017, gaining experience in several different specialties. In 2020, she began her doctorate degree at the University of Texas Health Science Center at Houston and completed it in 2024, earning her Family Nurse Practitioner Certification.

As a provider, she is committed to delivering evidence-based, empathetic, and holistic care to her patients. Her diverse background and education have given her a unique perspective on patient care and the ability to connect with people.

In her free time, she enjoys reading, playing games, and traveling with her husband, their two children, and their dog.