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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryHealthcareOther Specialist ClinicsSt. GallenTumor- und BrustZentrum Ostschweiz AG
Tumor- und BrustZentrum Ostschweiz AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Tumor- und BrustZentrum Ostschweiz AG is a multi-site medical practice specializing in the diagnosis, treatment and follow-up care of oncological, hematological and breast diseases. Services include outpatient therapies (chemotherapy, immunotherapy, hormone therapy), imaging and biopsy diagnostics, genetic counselling, multidisciplinary tumorboard planning, and participation in clinical research and certified breast-centre networks.

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Products & services

Industry:Other Specialist Clinics
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4.1/5

Tumor- und BrustZentrum Ostschweiz AG

✓ Offered12
Oncology consultation
Oncological consultation for solid tumours and haematological conditions, including systemic therapies, treatment planning, outpatient care and interdisciplinary case discussions.
Breast consultation and assessment of breast diseases
Breast consultation for the assessment of breast complaints, including clinical examination by touch, ultrasound, mammography, biopsy, early detection and treatment of breast cancer and other breast diseases.
Diagnostics and treatment of tumour diseases
Assessment of tumour diseases with tissue samples, imaging diagnostics, molecular characterisation, tumour board discussion and subsequent treatment with surgery, radiotherapy or medication.
Diagnostics and treatment of blood disorders
Assessment of blood disorders using blood tests, bone marrow puncture or lymph node examination, as well as outpatient therapies such as chemotherapy, antibody therapy, targeted therapy and immunotherapy.
Genetic counselling for cancer risk
Specialised genetic counselling for an increased risk of cancer, including genetic tests, prevention recommendations and, where appropriate, prophylactic therapies.
Outpatient procedures and biopsies
Outpatient procedures such as FNP, core needle biopsies, minor excisions, Port-a-Cath implantations, as well as drainage of wounds, ascites or pleural effusions.
Inpatient breast surgery
Inpatient operations for breast cancer and other breast surgeries at Klinik Stephanshorn, with care by the centre’s specialists and interdisciplinary collaboration.
Aftercare for cancer diseases
Individual tumour aftercare following surgery or treatment, including wound checks, review of findings and planning of further additional treatments.
Nursing advice
Specialised nursing advice on side effects, cosmetics, wigs and other questions related to oncological treatments.
Early detection and preventive counselling
Counselling on cancer prevention, family cancer risk and early detection, including recommendations for screening and further investigations.
Clinical trials
Access to clinical trials with new treatment options, particularly to reduce surgical morbidity and for new systemic therapies.
Areola tattoo
Medical pigmentation for the visual restoration of the nipple and areola after breast surgery, in collaboration with a specialised tattoo artist.
Trust & reputation

ranQ Trust Score of Tumor- und BrustZentrum Ostschweiz AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Tumor- und BrustZentrum Ostschweiz AG scores 59.3 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.75.024%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.40.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Tumor- und BrustZentrum Ostschweiz AG scores 94.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • 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.90.07%
Tumor- und BrustZentrum Ostschweiz AG scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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).86.722%
Tumor- und BrustZentrum Ostschweiz AG scores 64.3 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
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 35.88.64%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.40.04%
Qualifications+0.00

Tumor- und BrustZentrum Ostschweiz AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

September 20, 2022Media
«Wir bieten das gesamte Spektrum an»
leaderdigital.ch
March 26, 2022Media
St.Gallen bekommt Tumorzentrum
leaderdigital.ch
March 25, 2022Media
Neues Tumorzentrum: Private Onkologie in St.Gallen vereint sich
tagblatt.ch
March 25, 2022Media
Fusion: Neues Tumorzentrum in der Ostschweiz gegründet
medinside.ch

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Location

Rorschacher Strasse 286
9016 St. Gallen
Opening hours
Mon
08:00 - 12:00, 14:00 - 17:00
Tue
08:00 - 12:00, 14:00 - 17:00
Wed
08:00 - 12:00, 14:00 - 17:00
Thu
Closed
Fri
Closed
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.593.107
Founded
1997 · 29 years
Last commercial register change
September 30, 2026
Employees
51 to 100
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%
    • Full methodology

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