Leading OC Digestive Specialists
The Division of Gastroenterology provides high-quality clinical care to the diverse populations of Orange County, California. Many of our physicians consistently rank among the nation's top gastroenterologists in surveys of their peers.
The division's main clinical enterprise is the Digestive Health Institute, which provides comprehensive, multidisciplinary digestive care using a team of gastroenterologists, hepatologists, surgeons, oncologists, pathologists, radiologists, dietitians, nurses, social workers and case managers.

- Achalasia
- Barrett’s esophagus
- Chronic liver disease
- Colon polyps
- Colorectal cancer
- Esophageal cancer
- Esophageal motility disorders
- Gastric cancer and pre-cancer
- Gastroesophageal and reflux disease (GERD)
- Gastroparesis
- Inflammatory bowel disease
- Irritable bowel syndrome
- Liver and biliary cancers
- Liver disease, including viral hepatitis, NASH, etc.
- Liver transplant management
- Obesity
- Pancreatitis, acute and chronic
- Pancreatic cancer
- Pancreatic cysts
- Anorectal manometry (ARM)
- Artificial intelligence (AI) colonoscopy
- Capsule endoscopy
- Cholangioscopy
- Confocal laser endomicroscopy (Cellvizio®)
- Elastography for liver fibrosis
- Endolumenal functional lumen imaging probe (EndoFLIP®)
- Endoscopic achalasia procedures
- Per-oral endoscopic myotomy (POEM)
- Pneumatic balloon dilation (EsoFLIP®)
- Botox injection
- Endoscopic anti-reflux (GERD) procedures
- Radiofrequency therapy (Stretta®)
- Transoral incisionless fundoplication (Esophyx® TIF)
- Resection and plication (RAP)
- Endoscopic bariatric procedures
- Endoscopic sleeve gastroplasty (ESG)
- Endoscopic revision of prior gastric bypass or sleeve (TORe)
- Endoscopic Barrett’s ablation procedures
- Radiofrequency ablation (RFA, Halo®)
- Cryotherapy (TruFreeze®, C2®)
- Hybrid argon plasma coagulation (H-APC)
- Endoscopic cricopharyngeal myotomy for Zenker’s (Z-POEM)
- Endoscopic biliary drainage procedures
- EUS guided gallbladder drainage
- EUS guided choledochoduodenostomy
- EUS guided hepaticogastrostomy
- Endoscopic bypass procedures: gastrojejunostomy
- Endoscopic closure of leaks and fistula, stenting
- Endoscopic drainage procedures
- EUS-guided cyst-gastrostomy
- EUS-guided necrosectomy
- Endoscopic liver procedures (endo-hepatology)
- EUS-guided liver biopsy
- EUS-guided portal pressure gradient (EUS-PPG)
- EUS-guided shear wave elastography (EUS-SWE)
- EUS-guided glue and coil embolization of gastric varices
- Endoscopic pyloro-myotomy for gastroparesis (G-POEM)
- Endoscopic needle knife stricturoplasty
- Endoscopic resection procedures
- Endoscopic mucosal resection (EMR)
- Underwater endoscopic mucosal resection
- Endoscopic submucosal dissection (ESD)
- Full-thickness resection (FTRD®)
- Endoscopic retrograde cholangiopancreatography (ERCP)
- Endoscopic ultrasound/fine needle aspiration and biopsy (EUS-FNA, FNB)
- Esophageal pH monitoring (Bravo®) 48 and 96 hr
- Extracorporeal shockwave lithotripsy (ESWL)
- High-resolution esophageal manometry and pH/impedance (HREM)
- Hyperthermic intraperitoneal chemoperfusion (HIPEC)
- Intraoperative radiation therapy (IORT)
- Laparoscopic and thoracoscopic esophagectomy
- Laparoscopic anti-reflux (GERD) procedures
- Nissen fundoplication
- Partial fundoplication (Dor, Toupet)
- Magnetic augmentation (Linx®)
- Concomitant lap hernia repair with TIF (cTIF)
- Laparoscopic colectomy
- Laparoscopic gastrectomy and lymphadenectomy
- Laparoscopic bariatric procedures
- Gastric bypass
- Sleeve gastrectomy
- Laparoscopic pancreatectomy
- Robotic surgery
- Robotic lower anterior resection
- Robotic hernia repair
- Total pancreatectomy with islet autotransplantation (TPIAT)
- Underwater colonoscopy, NBI and tip enhancement (Endocuff®, Amplifeye®)
For information on patient care, please visit our healthcare website. There, you will find comprehensive information on patient care services, including details on our dedicated healthcare providers, cutting-edge practices and compassionate approach to patient care.