Summary

Dr. Barrett Wallis is a gastroenterologist who earned his medical degree from Weill Cornell Medical College. With 47 years of experience in digestive health care, he has built extensive expertise in diagnosing and treating conditions affecting the gastrointestinal system. Dr. Wallis speaks English and serves patients throughout the Crystal River area.

Dr. Wallis is affiliated with Tampa General Hospital Crystal River, HCA Florida Citrus Hospital, and HCA Florida Oak Hill Hospital, providing care in Crystal River and Brooksville, Florida. He focuses on treating abdominal pain and flank pain, including cases that occur during pregnancy. His procedural expertise includes performing colonoscopies and upper and lower GI endoscopies to help diagnose digestive concerns. Patients have given Dr. Wallis an average rating of 3.4 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.4
  • 47 years of experience
  • speaks English
  • Weill Cornell Medical College
  • 16 written reviews
  • 1 specialty
  • 14 areas of expertise
  • 1 board certification
  • 3 hospital affiliations
  • 8 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Barrett Jeffrey Wallis, MD, PA has 8 locations

Advanced Gastroenterology Associates / Main Office

6152 W Corporate Oaks DrCrystal River, FL 34429
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

Advanced Gastroenterology Associates

6152 W Corporate Oaks DrCrystal River, FL 34429
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Hca Florida Oak Hill Hospital

11375 Cortez BlvdBrooksville, FL 34613

Good Samaritan Hospital

375 Dixmyth AveCincinnati, OH 45220

Citrus Memorial Hospital

502 W Highland BlvdInverness, FL 34452

Bravera Health Seven Rivers

6201 N Suncoast BlvdCrystal River, FL 34428

Advanced Gastroenterology Associates / Endoscopy Center

6130 W Corporate Oaks DrCrystal River, FL 34429

Bethesda North Hospital

10500 Montgomery RdCincinnati, OH 45242

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Dr. Barrett Jeffrey Wallis, MD, PARebecca Humphries, APRNJi Soo Choi, APRNRachel Oliver, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.4 
47 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English Speaks English
Crystal River , FLSacramento , CASacramento , CASacramento , CA
Med School: Weill Cornell Medical College Med School: Emory University Med School: New York University Med School: University of South Alabama
Current Profile
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Insurance Plans Accepted by Dr. Barrett Jeffrey Wallis, MD, PA

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Barrett Jeffrey Wallis, MD, PA has the following specialty

Specialty Expertise

Dr. Barrett Jeffrey Wallis, MD, PA has the following 14 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Digestive System Endoscopy (EGD)
  • Electrocardiography (EKG)
  • Endoscopic Retrograde Cholangiopancreatography (ERCP)
  • Hemorrhoids
  • Hepatitis C
  • Iron-Deficiency Anemia
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

47 Years Experience

Dr. Barrett Jeffrey Wallis, MD, PA holds an active medical license in the state of Florida.

Medical License

Medical Doctor with an active medical license in the state of Florida that expires in 2027.

Education & Training

Medical School

Graduated from Weill Cornell Medical College in 1979.

NPI Number

Dr. Wallis, MD, PA's NPI number is 1740220938.

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Frequently Asked Questions

Is Dr. Barrett Wallis, MD, PA accepting new patients?
Dr. Barrett Wallis, MD, PA is accepting new patients on Vitals. View Dr. Barrett Wallis, MD, PA's profile on Vitals to make an appointment.
Where is Dr. Barrett Wallis, MD, PA's office located?
Dr. Barrett Wallis, MD, PA's office is located at 6152 W Corporate Oaks Dr, Crystal River, FL, 34429.
How can I make an appointment with Dr. Barrett Wallis, MD, PA?
You can find contact information for Dr. Barrett Wallis, MD, PA here on Vitals.
Does Dr. Barrett Wallis, MD, PA accept virtual/telehealth appointments?
Dr. Barrett Wallis, MD, PA has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Barrett Wallis, MD, PA speak?
Dr. Barrett Wallis, MD, PA speaks English.

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