Overview
Benjamin Merrifield is a Gastroenterologist in Everett, Washington. Dr. Merrifield is rated as an Experienced provider by MediFind in the treatment of Enlarged Liver. His top areas of expertise are Gastrointestinal Bleeding, Angiodysplasia of the Colon, Esophageal Varices, Endoscopy, and Gastrectomy. Dr. Merrifield is currently accepting new patients.
His clinical research consists of co-authoring 1 peer reviewed article. MediFind looks at clinical research from the past 15 years.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- INSURANCE PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER COMMERCIAL
- OTHER MEDICARE
- PPO
- HMO
- POS
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- PPO
- EPO
- PPO
- EPO
- HMO
- POS
- PPO
Locations
13020 Meridian Ave S, Everett, WA 98208
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
Virginia Mason Medical Center
Asma Siddique, MD, is a fellowship-trained hepatologist with special medical interest in all liver diseases, including metabolic liver disease, genetic liver disease, fatty liver disease, cholestatic liver disease, hepatitis B and C, liver cancer, primary biliary cirrhosis and primary sclerosing cholangitis. In addition to her clinical practice, she also participates in clinical research with a focus on hepatitis C.Dr. Siddique enjoys getting to know her patients, creating a strong connection and working to help them feel better. For her liver cancer patients, who require very individualized treatment, she takes a team approach, involving an oncologist, surgeon and interventional radiologist in addition to herself as the hepatologist.Dr. Siddique enjoys reading, skiing, traveling and spending time with her daughter. Dr. Siddique is rated as a Distinguished provider by MediFind in the treatment of Enlarged Liver. Her top areas of expertise are Non-Alcoholic Fatty Liver Disease, Hepatitis, Visceromegaly, Cirrhosis, and Tissue Biopsy.
Franciscan Medical Group
Sangik Oh, MD, is a board-certified gastroenterologist with fellowship training in gastroenterology. Dr. Oh served as Chief Medical Resident during his internal medicine residency. During his gastroenterology fellowship, he also earned his Master's degree in Medical Science from Harvard Medical School. He was also the recipient of the 2002 AASLD/Schering Advanced Hepatology Fellowship Award.Upon completion of his fellowship, Dr. Oh joined the faculty at Harvard Medical School and was a staff gastroenterologist at Beth Israel Deaconess Medical Center before joining Tacoma Digestive Disease Center in 2005, which is now Franciscan Digestive Care Associates. Dr. Oh is rated as a Distinguished provider by MediFind in the treatment of Enlarged Liver. His top areas of expertise are Visceromegaly, Enlarged Liver, Non-Alcoholic Fatty Liver Disease, Cirrhosis, and Endoscopy.
Frank Jahns is a Gastroenterologist in Sequim, Washington. Dr. Jahns is rated as a Distinguished provider by MediFind in the treatment of Enlarged Liver. His top areas of expertise are Alcoholic Cirrhosis, Hepatitis C, Hepatitis, Gastrectomy, and Endoscopy.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- Angiodysplasia of the ColonDr. Merrifield isAdvanced. Learn about Angiodysplasia of the Colon.
- EndoscopyDr. Merrifield isAdvanced. Learn about Endoscopy.
- Gastrointestinal BleedingDr. Merrifield isAdvanced. Learn about Gastrointestinal Bleeding.
- Experienced
- AchalasiaDr. Merrifield isExperienced. Learn about Achalasia.
- AnemiaDr. Merrifield isExperienced. Learn about Anemia.
- Benign Esophageal StrictureDr. Merrifield isExperienced. Learn about Benign Esophageal Stricture.
- Childhood VolvulusDr. Merrifield isExperienced. Learn about Childhood Volvulus.
- Chronic Erosive GastritisDr. Merrifield isExperienced. Learn about Chronic Erosive Gastritis.
- CirrhosisDr. Merrifield isExperienced. Learn about Cirrhosis.

