ABOUT DR. WILLIAM HSUEH • ANVEA HEALTH

Expert Care.
Personalized for You.

At Anvea Health Gastroenterology, we provide comprehensive digestive health services and personalized expertise. Our approach combines medical excellence with compassionate, individualized care.

Advanced Expertise Focused gastroenterology care
Patient Focused Care centered around you
Comprehensive Care From diagnosis to treatment
Board Certified Trusted expertise in
gastroenterology
Advanced Expertise Focused on GI procedures
and treatment
Patient Focused Care Clear communication
& collaboration
Multilingual English · Spanish · Mandarin
Our Practice

Gastroenterology Care Built Around You

At Anvea Health, we believe gastroenterology care should be thorough, understandable, and centered around the person receiving it.

Our practice provides evaluation and treatment across a broad range of digestive, liver, pancreatic, biliary, esophageal, and colorectal conditions. When advanced evaluation or treatment is appropriate, patients also have access to specialized endoscopy expertise.

We take time to listen to your concerns, explain what we find, discuss your options, and help you understand the next step in your care.

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Patient-Centered Care Your comfort, understanding, and individual needs remain central to care.
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Broad GI Expertise Comprehensive care across a wide range of gastrointestinal conditions.
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Advanced Procedures Specialized endoscopic procedures when clinically appropriate.
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Clear Communication Straightforward explanations that help patients make informed decisions.
Anvea Health clinic
Anvea Health A modern, welcoming environment for comprehensive digestive health care.
The Anvea Health Difference

Expertise Without Losing the Human Connection

The practice was shaped around a simple belief: patients should have access to strong medical expertise while still feeling heard, comfortable, and informed throughout their care.

01 / PATIENTS

Care That Starts With Listening

We begin by understanding your symptoms, concerns, history, and questions before determining the appropriate next step.

02 / EXPERTISE

Broad Gastroenterology Experience

Care encompasses common and complex GI conditions, including inflammatory bowel disease, liver disease, GERD, and esophageal disorders.

03 / ADVANCED

Advanced Endoscopy

Specialized expertise includes advanced procedures involving the pancreas, biliary system, liver, and gastrointestinal tract.

04 / VALUES

Honesty, Empathy & Diligence

These principles guide the way we communicate, evaluate patients, explain options, and deliver care.

William Hsueh, MD
William Hsueh, MD Gastroenterology & Advanced Endoscopy
Meet Dr. Hsueh

William Hsueh, MD

Gastroenterology & Advanced Endoscopy

Dr. William Hsueh is a gastroenterologist with fellowship training in Gastroenterology and Advanced Endoscopy at West Virginia University. He completed his Internal Medicine residency at MedStar Georgetown University Hospital / Washington Hospital Center.

His clinical experience encompasses a broad range of gastrointestinal conditions, with particular expertise in advanced endoscopy and diseases involving the pancreas, biliary system, and liver.

His professional experience has included caring for patients in underserved communities, where providing a broad range of GI services was especially important to patients across large geographic areas.

Advanced Endoscopy Fellowship training in gastroenterology and advanced endoscopy.
Board Certified Certified in Internal Medicine and Gastroenterology.
Medical Education Experience teaching medical residents.
Mandarin Fluent in Chinese Mandarin in addition to English.
Advanced Gastroenterology

Advanced Procedures When More Is Needed

Dr. Hsueh's training and clinical experience include advanced endoscopic procedures as well as comprehensive management of gastrointestinal, liver, pancreatic, and biliary conditions.

Endoscopic Ultrasound EUS with evaluation and tissue sampling when indicated.
ERCP Pancreatic and biliary evaluation and therapeutic intervention.
Upper Endoscopy EGD with biopsy, dilation, bleeding control, and other interventions.
Colonoscopy Screening, biopsy, polypectomy, and selected advanced interventions.
Esophageal Evaluation Manometry and BRAVO pH testing interpretation.
Advanced Resection Endoscopic mucosal resection in appropriate cases.
Areas of Expertise

Comprehensive Digestive Health

Clinical expertise includes both routine and complex gastroenterology, allowing the practice to approach digestive health from a broad perspective.

Pancreatic Disease Biliary Disease Liver Disease IBD Crohn's Disease Ulcerative Colitis GERD Fatty Liver IBS Esophageal Disorders Swallowing Disorders Colon Polyps
Education & Experience

A Foundation of Specialized Training

2009–2013
Doctor of Medicine, Cum Laude St. George's University, School of Medicine
2013–2016
Internal Medicine Residency MedStar Georgetown University Hospital / Washington Hospital Center
2016–2019
Fellowship in Gastroenterology & Advanced Endoscopy West Virginia University
2016+
Gastroenterology Practice Clinical experience in comprehensive gastroenterology and advanced endoscopy, including care for underserved populations.
Present
Professional & Academic Engagement Member of major gastroenterology professional societies and contributor to medical research, publications, presentations, and resident education.
Our Philosophy

Better Care Through Better Understanding

The practice is built around transparent care, clear communication, patient education, and collaboration. Patients should understand their condition, their options, and the reasons behind their care.

Our goal is to help patients feel comfortable and knowledgeable about their medical conditions and procedures so they can make the best informed decisions.

Anvea Health

Honesty

Straightforward communication about your diagnosis, options, and care.

Empathy

A welcoming environment where patients feel heard and respected.

Diligence

Careful evaluation, attention to detail, and commitment to doing things well.

Patient Education

Clear explanations that help patients participate in decisions about their care.

Collaboration

Working with patients to develop an appropriate plan for their individual needs.

Service

A continued commitment to serving patients, including underserved populations.

Our Offices

Convenient Care Across Our Locations

Anvea Health serves patients through multiple office locations. Choose the location that is most convenient for your care.

Main Office

Diamond Bar

888 S. Brea Canyon Rd,
Ste 380,
Diamond Bar, CA 91789
909.363.1258
Second Office

Chino Hills

2140 Grand Ave.,
Ste 120,
Chino Hills, CA 91703
Call the Office
Patient Questions

Understanding Your
Gastroenterology Care

Clear information can make the next step in your care easier to understand. Explore answers to common questions about gastroenterology consultations, advanced endoscopy, appointments, and care at Anvea Health.

Gastroenterology focuses on conditions affecting the digestive system, including the esophagus, stomach, small intestine, colon, liver, pancreas, and biliary system. Evaluation may address symptoms such as abdominal discomfort, reflux, changes in bowel habits, gastrointestinal bleeding, swallowing difficulties, or other digestive concerns.
Questions about your individual care, preparation, referral requirements, or insurance coverage? Our office team can provide information specific to your appointment.