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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryHealthcareGastroenterology ClinicsOltenGastroenterologie & Ernährungsmedizin Dr. Erhart AG
Gastroenterologie & Ernährungsmedizin Dr. Erhart AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company's core activity is the medical care and treatment of patients in the field of gastroenterology, including gastroscopy, colonoscopy, rectoscopy, small bowel capsule endoscopy, endoscopic ultrasound (EUS), sonography, liver stiffness measurement, pH-metry, Bravo capsule, H2 breath test, and endoscopic biliary tract imaging (ERCP).

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Products & services

Industry:Gastroenterology Clinics
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4.1/5

Gastroenterologie & Ernährungsmedizin Dr. Erhart AG

✓ Offered11
Gastroscopy
Oesophago-gastro-duodenoscopy to examine pharynx, oesophagus, stomach and duodenum; with biopsy sampling, special mucosal staining and haemostasis.
Colonoscopy
Colonoscopy to examine the anal canal, large intestine and the end of the small intestine; with biopsy sampling, haemostasis, treatment of haemorrhoids and colorectal cancer screening.
Rectal endoscopy
Rectoscopy and anoscopy to examine the anal canal and rectum; with biopsy sampling, haemostasis and optional performance under anaesthesia or while awake.
Endoscopic ultrasound (EUS)
Upper and rectal endosonography to assess oesophagus, stomach, duodenum, rectum, pancreas, bile ducts and lymph nodes; with needle punctures and tumour staging.
Ultrasound examination
Sonography, abdominal sonography, intestinal sonography and contrast-enhanced sonography for painless imaging of internal abdominal organs, including assessment of liver tumours and other organ changes.
Liver stiffness measurement
FibroScan elastography for painless diagnosis of liver diseases and for assessing the progression of fibrosis and cirrhosis; also for monitoring over time.
Bravo™ pH monitoring capsule
Measurement of acid reflux in heartburn and reflux symptoms using an endoscopically placed capsule probe; recording over 48 hours and subsequent evaluation.
H2 breath test
Breath diagnostics to clarify lactose intolerance, fructose malabsorption and bacterial overgrowth by analysing exhaled air after a sugar solution.
Endoscopic bile duct imaging (ERCP)
Bile duct endoscopy as a combined endoscopic and X-ray examination; performed in hospital under anaesthesia by Dr. Erhart at Kantonsspital Olten.
Dietary counselling
Individual one-to-one and group consultations, talks, training sessions and cooking courses to change unfavourable dietary habits and for digestive problems, intolerances and chronic intestinal diseases.
Specialised consultations
General gastroenterology outpatient clinic, irritable bowel syndrome, chronic inflammatory bowel diseases, hepatology, coeliac disease/oesophagitis, neurogastroenterology and infectious gastroenterology.
Trust & reputation

ranQ Trust Score of Gastroenterologie & Ernährungsmedizin Dr. Erhart AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Gastroenterologie & Ernährungsmedizin Dr. Erhart AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Gastroenterologie & Ernährungsmedizin Dr. Erhart AG scores 86.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.86.512%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.82.07%
Gastroenterologie & Ernährungsmedizin Dr. Erhart AG scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).83.322%
Gastroenterologie & Ernährungsmedizin Dr. Erhart AG scores 7.7 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.7.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gastroenterologie & Ernährungsmedizin Dr. Erhart AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Ziegelackerstrasse 5
4600 Olten

At a glance

Legal form
Corporation
UID
CHE-264.414.368
Founded
2016 · 10 years
Last commercial register change
November 21, 2022
Employees
21 to 50
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
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