MediFind found 30 doctor with experience in Colitis near Richland, WA. Of these, 24 are Experienced, 4 are Advanced and 1 are Distinguished.
Randy Geldmacher is a Gastroenterologist in Richland, Washington. Dr. Geldmacher is rated as a Distinguished provider by MediFind in the treatment of Colitis. His top areas of expertise are Colitis, Necrotizing Enterocolitis, Angiodysplasia of the Colon, Gastrectomy, and Colonoscopy. Dr. Geldmacher is currently accepting new patients.
Tri-Cities Digestive Health Center, P.S.
Siew Wong is a Gastroenterologist in Kennewick, Washington. Dr. Wong is rated as an Advanced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Esophagitis, Familial Adenomatous Polyposis, Gardner Syndrome, Gastrectomy, and Colonoscopy. Dr. Wong is currently accepting new patients.
Tri-Cities Digestive Health Center, PS & Mid-Columbia Endoscopy Center
Somprak Boonpongmanee Dr Boon is a Gastroenterologist in Kennewick, Washington. Dr. Boonpongmanee Dr Boon has been practicing medicine for over 34 years and is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Morning Sickness, Turcot Syndrome, Gardner Syndrome, Endoscopy, and Gastrectomy. Dr. Boonpongmanee Dr Boon is currently accepting new patients.
Matthew Lawrence is a primary care provider, practicing in Family Medicine in Richland, Washington. Dr. Lawrence is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Type 2 Diabetes (T2D).
Michael Pattillo is a primary care provider, practicing in Family Medicine in Richland, Washington. Dr. Pattillo is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Torticollis, Sciatica, Sitosterolemia, and Scoliosis.
Kadlec Regional Medical Center
Jeffrey Mcdannel is a primary care provider, practicing in Internal Medicine in Richland, Washington. Dr. Mcdannel is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Gastrointestinal Bleeding, Sepsis, Peptic Ulcer, Endoscopy, and Gastrostomy. Dr. Mcdannel is currently accepting new patients.
Health First Urgent Care, PLLC
Charles Nelson is a primary care provider, practicing in Family Medicine in Richland, Washington. Dr. Nelson is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Tracheitis, Cellulitis, Lymphangitis, and Bronchitis.
Charles Hames is a Gastroenterologist in Richland, Washington. Dr. Hames is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Gastrointestinal Bleeding, Mallory-Weiss Syndrome, Esophagitis, Gastrectomy, and Colonoscopy. Dr. Hames is currently accepting new patients.
Peter Maher is a Gastroenterologist in Richland, Washington. Dr. Maher is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Necrotizing Enterocolitis, Esophagitis, Colorectal Cancer, Endoscopy, and Colonoscopy. Dr. Maher is currently accepting new patients.
Lissette Ramierez is a primary care provider, practicing in Internal Medicine and Geriatrics in Richland, Washington. Dr. Ramierez is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Dementia, Renovascular Hypertension, Normal Pressure Hydrocephalus, and Myelodysplastic Syndrome (MDS).
Delia Takagi is a primary care provider, practicing in Internal Medicine and Geriatrics in Richland, Washington. Dr. Takagi is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Type 2 Diabetes (T2D), Chronic Cough, and Osmotic Diuresis.
William Kalichman is a primary care provider, practicing in Internal Medicine in Richland, Washington. Dr. Kalichman is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Lipogranulomatosis, Lipoid Proteinosis, Chronic Pain, and Eosinophilic Granulomatosis with Polyangiitis (EGPA, Churg-Strauss Syndrome).
Thomas Westhusing is a primary care provider, practicing in Family Medicine in Richland, Washington. Dr. Westhusing is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Type 2 Diabetes (T2D). Dr. Westhusing is currently accepting new patients.
Wei-hsung Lin is a primary care provider, practicing in Internal Medicine in Richland, Washington. Dr. Lin is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Childhood Iron Deficiency Anemia, Heart Failure with Preserved Ejection Fraction (HFpEF), Lung Metastases, and Chromophobe Renal Cell Carcinoma.
Kiranmayi Korimerla is a primary care provider, practicing in Family Medicine in Richland, Washington. Dr. Korimerla is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Urinary Tract Infection in Children, Colorectal Cancer, Familial Colorectal Cancer, and Type 2 Diabetes (T2D).
Steve Liebing is a primary care provider, practicing in Family Medicine in Richland, Washington. Dr. Liebing is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Generalized Anxiety Disorder (GAD), Obesity, Umbilical Hernia, and Obesity in Children.
J Hornell is a primary care provider, practicing in Family Medicine in Pasco, Washington. Dr. Hornell is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Fibromyalgia, Lung Metastases, Sacroiliac Joint Disease, and Creutzfeldt-Jakob Disease. Dr. Hornell is currently accepting new patients.
Lourdes Hospital LLC
Gary Belcaster is a Gastroenterologist in Pasco, Washington. Dr. Belcaster is rated as an Experienced provider by MediFind in the treatment of Colitis. His top areas of expertise are Juvenile Polyposis Syndrome, Cronkhite-Canada Disease, Attenuated Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy.
Gastro Health - Tri-Cities
Dr. Amber Charoen is a board-certified specialist in internal medicine and gastroenterology. She completed medical school at Rangsit University in Thailand with First Class Honors and Valedictorian.Her commitment to excellence continued with residency training in internal medicine at the MetroWest Medical Center/Tufts University School of Medicine in Framingham, Massachusetts. Following this, she pursued a fellowship in gastroenterology at the Rhode Island Hospital/Brown University in Providence, Rhode Island. She received an Exemplary Teaching award from Brown University and is the 2022 recipient of the Joseph A. DiMase Brown University Gastroenterology Research Award.Before joining Gastro Health of Tri-Cities, Dr. Charoen served as an Assistant Professor of Medicine at The Johns Hopkins University School of Medicine. Her clinical expertise spans GI upper endoscopy, colonoscopy screening, capsule endoscopy and Women’s digestive health. Dr. Charoen was trained in one of only few centers in US that provide training in Women’s Gastrointestinal Medicine, focusing on gastroenterological issues unique to women. Dr. Charoen has contributed significantly to the field, publishing research on a diverse array of GI topics, including GI bleeding, nutrition, liver disease, pancreatitis, esophageal disease, celiac disease, and inflammatory bowel disease and presented at national and international conferences. During her fellowship training, she also served as the associate editor of the ACG Case Reports Journal.Dr. Charoen's patient-centered approach to care is characterized by a team-oriented, goal-directed, and compassionate ethos. She prioritizes active listening and collaborates closely with her patients to formulate personalized treatment plans.In his spare time, Dr. Charoen enjoys spending time with her family and her dog. Dr. Charoen is rated as an Experienced provider by MediFind in the treatment of Colitis. Her top areas of expertise are Colonic Malakoplakia, Childhood Volvulus, Portal Hypertension, Indigestion, and Endoscopy.
Puget Sound Gastroenterology PLLC
Pornchai Leelasinjaroen is a Gastroenterologist in Kennewick, Washington. Dr. Leelasinjaroen has been practicing medicine for over 17 years and is rated as an Advanced provider by MediFind in the treatment of Colitis. His top areas of expertise are Ulcerative Colitis, Familial Adenomatous Polyposis, Gardner Syndrome, Gastrectomy, and Colonoscopy.
Last Updated: 10/30/2025

