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Barrett Wallis, MD

Dr. Wallis is a gastroenterologist in the Marion County area. He is affiliated with Citrus Memorial Hospital and 2 more hospitals.
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Conditions treated

Tap to see related services for each condition and more details about our calculations.

Top 25%
39 doctors
Top 15%
39 doctors
Top 5%
19 doctors
Dr. Wallis saw more digestive tract conditions patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

Related services provided

Top 25%
7 doctors
Top 15%
6 doctors
Top 5%
3 doctors
Dr. Wallis saw more benign polyps patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
55 doctors
Top 15%
54 doctors
Top 5%
27 doctors
Dr. Wallis saw more pain patients than 75% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
5 doctors
Top 15%
5 doctors
Top 5%
2 doctors
Dr. Wallis saw more colon polyps patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
35 doctors
Top 15%
35 doctors
Top 5%
17 doctors
Dr. Wallis saw type 2 diabetes patients in 2014–2017, but we couldn’t determine whether he was a top doctor for the condition in the Marion County area. Learn more.
Top 25%
36 doctors
Top 15%
36 doctors
Top 5%
18 doctors
Dr. Wallis saw diabetes patients in 2014–2017, but we couldn’t determine whether he was a top doctor for the condition in the Marion County area. Learn more.
Top 25%
1 doctor
Top 15%
2 doctors
Top 5%
Dr. Wallis saw fecal incontinence patients in 2014–2017, but we couldn’t determine whether he was a top doctor for the condition in the Marion County area. Learn more.

Related services provided

Top 25%
7 doctors
Top 15%
6 doctors
Top 5%
3 doctors
Dr. Wallis saw more hemorrhoid patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
5 doctors
Top 15%
5 doctors
Top 5%
2 doctors
Dr. Wallis saw more diverticulosis patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
29 doctors
Top 15%
29 doctors
Top 5%
14 doctors
Dr. Wallis saw more peripheral vascular disease (PVD) patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
13 doctors
Top 15%
14 doctors
Top 5%
6 doctors
Dr. Wallis saw more constipation patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
1 doctor
Top 15%
1 doctor
Top 5%
Dr. Wallis saw more anal polyp patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
8 doctors
Top 15%
8 doctors
Top 5%
3 doctors
Dr. Wallis saw more gastritis patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
50 doctors
Top 15%
50 doctors
Top 5%
25 doctors
Dr. Wallis saw vascular disease patients in 2014–2017, but we couldn’t determine whether he was a top doctor for the condition in the Marion County area. Learn more.

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Top 25%
15 doctors
Top 15%
15 doctors
Top 5%
7 doctors
Dr. Wallis saw more diarrhea patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
20 doctors
Top 15%
20 doctors
Top 5%
9 doctors
Dr. Wallis saw more acid reflux patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
11 doctors
Top 15%
10 doctors
Top 5%
5 doctors
Dr. Wallis saw more hernia patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
3 doctors
Top 15%
3 doctors
Top 5%
1 doctor
Dr. Wallis saw more hiatal hernia patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
16 doctors
Top 15%
16 doctors
Top 5%
8 doctors
Dr. Wallis saw more hemorrhage patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
14 doctors
Top 15%
13 doctors
Top 5%
6 doctors
Dr. Wallis saw more inflammatory bowel disease (IBD) patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
14 doctors
Top 15%
14 doctors
Top 5%
6 doctors
Dr. Wallis saw more gastroenteritis patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
4 doctors
Top 15%
4 doctors
Top 5%
1 doctor
Dr. Wallis saw more non-alcoholic liver disease patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
14 doctors
Top 15%
14 doctors
Top 5%
7 doctors
Dr. Wallis saw more liver condition patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
10 doctors
Top 15%
11 doctors
Top 5%
5 doctors
Dr. Wallis saw more diverticulitis patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
6 doctors
Top 15%
6 doctors
Top 5%
2 doctors
Dr. Wallis saw more irritable bowel syndrome (IBS) patients than 85% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
2 doctors
Top 15%
3 doctors
Top 5%
1 doctor
Dr. Wallis saw stomach ulcer patients in 2014–2017, but we couldn’t determine whether he was a top doctor for the condition in the Marion County area. Learn more.

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Top 25%
5 doctors
Top 15%
5 doctors
Top 5%
2 doctors
Dr. Wallis saw more ulcerative colitis (UC) patients than 95% of similar doctors in the Marion County area in 2014–2017. Learn more.

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Top 25%
5 doctors
Top 15%
6 doctors
Top 5%
2 doctors
Dr. Wallis saw stomach flu patients in 2014–2017, but we couldn’t determine whether he was a top doctor for the condition in the Marion County area. Learn more.

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Top 25%
27 doctors
Top 15%
26 doctors
Top 5%
13 doctors
Dr. Wallis saw anemia patients in 2014–2017, but we couldn’t determine whether he was a top doctor for the condition in the Marion County area. Learn more.

Related services provided

Top 25%
8 doctors
Top 15%
8 doctors
Top 5%
3 doctors
Dr. Wallis saw more bowel obstruction patients than 75% of similar doctors in the Marion County area in 2014–2017. Learn more.

Related services provided

Locations

Dr. Wallis sees patients and can be reached at the following locations.

Office
6152 W Corporate Oaks Dr
Crystal River, FL 34429
762 miles away
Office
6130 W Corporate Oaks Dr
Crystal River, FL 34429
762 miles away

Reviews

Credentials
  • University of Michigan Program
    RESIDENCY
  • Weill Cornell Medical College
    MEDICAL EDUCATION, 1979

Hospital affiliations

Dr. Wallis is able to admit and treat patients at the following hospitals.

  • Citrus Memorial Hospital
    B
    Hospital safety grade (Fall 2017)
  • Oak Hill Hospital
    B
    Hospital safety grade (Fall 2017)
  • Seven Rivers Regional Medical Center
    Hospital safety grade not available

Insurance accepted

Always check coverage with your doctor’s office.

  • Aetna
  • Anthem
  • Arkansas Blue Cross and Blue Shield
  • Assurant Health
  • AvMed
  • Blue Cross Blue Shield of Arizona
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • Blue Cross and Blue Shield of Alabama
  • Blue Cross and Blue Shield of Florida
  • Blue Cross and Blue Shield of Illinois
  • Blue Cross and Blue Shield of Kansas
  • Blue Cross and Blue Shield of Kansas City
  • Blue Cross and Blue Shield of Louisiana
  • Blue Cross and Blue Shield of Minnesota
  • Blue Cross and Blue Shield of Mississippi
  • Blue Cross and Blue Shield of Montana
  • Blue Cross and Blue Shield of Nebraska
  • Blue Cross and Blue Shield of New Mexico
  • Blue Cross and Blue Shield of North Dakota
  • Blue Cross and Blue Shield of Oklahoma
  • Blue Cross and Blue Shield of Rhode Island
  • Blue Cross and Blue Shield of Texas
  • Blue Cross and Blue Shield of Vermont
  • Blue Cross and Blue Shield of Wyoming
  • Blue Cross of Idaho
  • Blue Shield of California
  • BlueCross BlueShield of South Carolina
  • BlueCross BlueShield of Tennessee
  • Capital District Physicians Health Plan
  • CareFirst BlueCross BlueShield
  • Cigna
  • Cross and Blue Shield of North Carolina
  • EmblemHealth
  • Highmark Blue Cross Blue Shield
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana
  • Independence Blue Cross AmeriHealth
  • MVP Health Care
  • Medical Mutual of Ohio
  • Medicare
  • Meritain Health
  • Pomco
  • Premera Blue Cross
  • Regence Blue Cross Blue Shield
  • Rocky Mountain Health Plans
  • TRICARE
  • United Healthcare
  • Wellmark Blue Cross and Blue Shield