Mercy Clinic Breast Surgery - Tower A

621 S. New Ballas Road, Tower A
Suite 260
St. Louis, MO 63141
Fax: (636) 256-5043
Hours of Operation:
Tuesdays 8 a.m. - 4:30 p.m.; Wednesdays 8 a.m. - Noon
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Mercy Clinic Breast Surgery has four board-certified surgeons who are experienced in the treatment of breast cancer and benign breast disease. Two of our surgeons offer services at this office in Tower A: Dr. Cara Hahs and Dr. Jovita Oruwari. As part of our Mercy Cancer Services team, they work closely with Mercy medical oncologists and radiation oncologists in helping patients and families through diagnosis, treatment and survivorship.  

Our breast surgeons provide the following services and treatments: Benign and Malignant Breast Disease, Nipple and Skin-Sparing Mastectomy, Brachytherapy, Genetic High Risk for Breast Cancer, Integrative Surgical Oncology, Breast Conservation Therapy.

We offer a “one-stop” healing experience that treats the whole person – body, mind and spirit. From surgery to chemotherapy to radiation to social services and integrative medicine, our team is here for you – any way you need us.

To make an appointment, please call 636-256-5000.

For additional information on breast cancer and how the disease can be treated, download the Mercy Breast Cancer Treatment Guide.

Patient Resources


We encourage our patients to participate in clinical trials to help themselves and future generations of patients with the same condition. For more information on clinical trials and research, please ask your doctor or call 314-251-7058 to find our more about clinical trials available at Mercy.

  • Research/Clinical Trials
  • Cancer and Tumor Research
  • Participate in a Research Study

Our Providers

Sarah Edwards Colwick, MD, Mercy
General Surgery, Breast Surgery
Mercy Clinic
Cara E. Hahs, MD, Mercy
General Surgery, Breast Surgery
Mercy Clinic
Abigail Weil Hoffman, MD, Mercy
General Surgery, Breast Surgery
Mercy Clinic
Jovita Oruwari, MD, Mercy
General Surgery, Breast Surgery
Mercy Clinic