Brian S. Farb, PA-C is a gastroenterology and hepatology physician assistant at Kaiser Permanente Zion Medical Center in Allied Gardens, San Diego, practicing from the 4647 Zion Ave campus in the 92120 ZIP code. Farb earned his physician assistant degree from Western University of Health Sciences in 1998 and holds current NCCPA certification, bringing over 25 years of digestive and liver disease management experience to the Zion campus. His caseload covers endoscopic procedure preparation and follow-up, inflammatory bowel disease monitoring, hepatitis screening, cirrhosis surveillance, and colonoscopy coordination for colorectal cancer prevention — referral workflows that connect primary care providers across San Diego, including community practices such as Inspire Wellness: Habib Dalhoumi, MD in Grantville, to Kaiser's GI specialty pipeline. Within Kaiser's integrated model, Farb collaborates directly with gastroenterologists, primary care physicians, and the on-site laboratory to sequence diagnostic imaging, blood work, and procedural scheduling into a single coordinated workflow. The Allied Gardens campus sits near the intersection of Waring Rd and Zion Ave, serving patients from surrounding sub-communities including Del Cerro and San Carlos through Kaiser's internal referral system. Hepatology evaluations include FibroScan-equivalent liver stiffness assessments, viral load monitoring for chronic hepatitis B and C patients, and medication management for patients on direct-acting antiviral regimens. For acute gastrointestinal symptoms requiring same-day evaluation outside scheduled GI appointments, Perlman Clinic Mission Gorge on Mission Gorge Rd in Grantville provides walk-in urgent care with after-hours availability. Farb's scope under California PA practice law includes ordering and interpreting diagnostic studies, prescribing medications, and performing patient education for post-procedural dietary and lifestyle modifications tied to GI recovery protocols.