Barrett Jeffrey Wallis, MD, PA

Dr. BARRETT WALLIS, MD, PA is BOARD CERTIFED in GASTROENTOROLOGY and HEPATOLOGY
Dr. Wallis attended college at Harvard University where he graduated magna cum laude with a BA in Biology. He completed medical school at Cornell University Medical College at New York Hospital. He continued his postgraduate training in internal medicine at the University of Michigan in Ann Arbor, as well as at Rutgers University Medical School in New Jersey. Dr. Wallis then completed a Gastroenterology/Hepatology fellowship at the State University of New York at Stony Brook.
Professional Medical Societies: – Dr. Wallis is a Member of the American Society for Gastrointestinal Endoscopy, Florida Medical Association, Elected President – Citrus County Medical Society, American Medical Association and American Gastroenterological Association.
Dr. Wallis is very happy to call Citrus County home.
ADVANCED GASTORENTOROLOGY
Dr. Jeffrey Wallis and his staff are pleased to have this opportunity to provide you with …the best possible gastrointestinal care available. Your health, comfort and convenience are foremost in our minds. Dr. Wallis is a gastroenterologist and hepatologist who specializes in the care of diseases and disorders of the gastrointestinal tract, including the stomach, liver and pancreas. Our services include: Endoscopy, Cancer Screening, Hemorrhoid-ectomy and more.
We would love to make a difference for you. Chat Now with us Today!

• Citrus Memorial Hospital

Advanced Gastroenterology Associates / Main Office

6152 W Corporate Oaks Dr

Crystal River

FL

34429

USA

(352) 432-1014

https://advancedgiassociates.com/index.html

• Gastroenterology
• Hepatology

• Colonoscopy
• Esophageal Dilatation
• Sigmoidoscopy
• Sigmoidoscopy
• Liver Biopsy
• Esophageal Dilatation

• Accepts Medicare
• Accepts Medicaid
• Multiplan PPO
• Humana HMO Select
• UHC Navigate POS
• Coventry FL Employer Group PPO
• Aetna Choice POS II
• Moda Health First Choice Network
• Humana HMO
• Florida Blue BlueCare HMO
• Neighborhood Health Partnership Commercial
• UHC Compass HMO
• BCBS Blue Card PPO
• Humana Choice POS
• Florida Blue BlueOptions
• Humana National POS
• Aetna HMO
• UHC Options PPO
• Aetna Managed Choice POS Open Access
• Humana ChoiceCare Network PPO
• AvMed Empower
• Florida Blue BlueSelect
• Avmed Choice
• Humana HMO Premier
• Aetna Signature Administrators PPO
• Humana Preferred PPO
• UHC Choice Plus POS
• UHC Navigate HMO
• CIGNA PPO
• CIGNA Open Access Plus
• First Health PPO
• PHCS PPO
• AvMed Engage
• BCBS Florida myBlue
• BCBS FL Blue Choice
• Florida Blue SimplyBlue
• MEDICA CHOICE WITH UNITEDHEALTHC
• UHC NAVIGATE PLUS POS
• UHC Signature Value
• CareSource Ohio
• First Choice
• Aetna Elect Choice EPO Open Access
• Aetna Innovation Health Aetna Premier Care Network Plus
• Aetna Open Choice PPO
• Aetna Premier Care Network APCN Choice POS II OAMC
• AvMed Choice POS - Large Group
• AvMed Empower - Small Employer Groups (1-50)
• BCBS FL Blue BlueCare HMO
• BCBS FL Blue BlueOptions
• BCBS FL Blue BlueSelect
• BCBS FL Blue SimplyBlue
• BCBS FL myBlue
• BCBS FL Preferred Patient Care PPO
• BCBSA Blue Card High Performance Network
• Humana / ChoiceCare Network PPO
• Humana/ChoiceCare+ Network PPO
• PacificSource Navigator
• UHC SignatureValue HMO - WA
• Ambetter IN
• Aetna Health Network Option Open Access
• Ambetter KY
• UHC Nexus Open Access
• Medica Choice With UHC
• Humana Cincinnati/Northern KY HMOx
• Humana Dayton HMOx
• SummaCare Select Fully Insured

• Rectal
• Abdomen
• Small Intestines
• or Colon Cancer
• Pancreatic Cancer
• Gastroesophageal Reflux Disease (GERD)
• Acute Pancreatitis
• Infectious Liver Disease
• Malignant Neoplasm of Esophagus
• Esophagitis
• Gastritis and Duodenitis
• Hemorrhoids
• Celiac Disease
• Anal or Rectal Abscess
• Chronic Pancreatitis
• Gastrointestinal Hemorrhage
• Benign Polyps of the Colon
• Diverticulitis
• Peptic Ulcer Disease
• Constipation
• Malignant Neoplasm of Colon
• Intestinal Obstruction
• Irritable Bowel Syndrome (IBS)
• Cholelethiasis or Cholecystitis
• Diverticulosis
• Cirrhosis
• Inflammatory Bowel Disease (IBD)