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
Find Dr. Johanson's expertise for a condition
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- Advanced
- Gastroesophageal Reflux Disease (GERD)
- Experienced
- Angiodysplasia of the ColonDr. Johanson isExperienced. Learn about Angiodysplasia of the Colon.
- Barrett EsophagusDr. Johanson isExperienced. Learn about Barrett Esophagus.
- Benign Esophageal StrictureDr. Johanson isExperienced. Learn about Benign Esophageal Stricture.
- Bowel IncontinenceDr. Johanson isExperienced. Learn about Bowel Incontinence.
- Chronic Erosive GastritisDr. Johanson isExperienced. Learn about Chronic Erosive Gastritis.
- Chronic Idiopathic Constipation (CIC)Dr. Johanson isExperienced. Learn about Chronic Idiopathic Constipation (CIC).
- ColitisDr. Johanson isExperienced. Learn about Colitis.
- Collagenous ColitisDr. Johanson isExperienced. Learn about Collagenous Colitis.
- ColonoscopyDr. Johanson isExperienced. Learn about Colonoscopy.
- Crohn's DiseaseDr. Johanson isExperienced. Learn about Crohn's Disease.
- DiarrheaDr. Johanson isExperienced. Learn about Diarrhea.
- Diverticular DiseaseDr. Johanson isExperienced. Learn about Diverticular Disease.
- EncopresisDr. Johanson isExperienced. Learn about Encopresis.
- Familial Adenomatous PolyposisDr. Johanson isExperienced. Learn about Familial Adenomatous Polyposis.
- Gardner SyndromeDr. Johanson isExperienced. Learn about Gardner Syndrome.
- GastrectomyDr. Johanson isExperienced. Learn about Gastrectomy.
- Gastric DysmotilityDr. Johanson isExperienced. Learn about Gastric Dysmotility.
- GastroparesisDr. Johanson isExperienced. Learn about Gastroparesis.
- HeartburnDr. Johanson isExperienced. Learn about Heartburn.
- HemorrhoidsDr. Johanson isExperienced. Learn about Hemorrhoids.
- IndigestionDr. Johanson isExperienced. Learn about Indigestion.
- Irritable Bowel Syndrome (IBS)Dr. Johanson isExperienced. Learn about Irritable Bowel Syndrome (IBS).
- Lower Esophageal RingDr. Johanson isExperienced. Learn about Lower Esophageal Ring.
- Lymphocytic ColitisDr. Johanson isExperienced. Learn about Lymphocytic Colitis.
- Morning SicknessDr. Johanson isExperienced. Learn about Morning Sickness.
- Painful SwallowingDr. Johanson isExperienced. Learn about Painful Swallowing.
- Swallowing DifficultyDr. Johanson isExperienced. Learn about Swallowing Difficulty.
- Trichohepatoenteric SyndromeDr. Johanson isExperienced. Learn about Trichohepatoenteric Syndrome.
- Turcot SyndromeDr. Johanson isExperienced. Learn about Turcot Syndrome.
- Ulcerative ColitisDr. Johanson isExperienced. Learn about Ulcerative Colitis.
- Viral GastroenteritisDr. Johanson isExperienced. Learn about Viral Gastroenteritis.
View All 31 Experienced Conditions
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