Mercy Clinic Oncology and Hematology - Clayton-Clarkson Suite 120

15945 Clayton Road
Suite 120
Ballwin, MO 63011
Fax: (636) 256-5100
Hours of Operation:
Monday-Friday: 8 a.m. - 4:30 p.m.

Mercy Clinic Oncology & Hematology in Ballwin, MO is known for expertise and compassion. Our oncologists are experienced in treating many different types of cancer, as well as benign breast disease. Using the latest technology, our experts guide and support patients and families through diagnosis, treatment and survivorship.

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.

For more information our our survivorship training and rehab program, please visit the Mercy STAR® Program (Survivor Training and Rehab) page, or call 636-256-STAR (7827) to make an appointment.


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

Services Offered

Our Providers

Laura Ann Hooper, NP, Hematology, Oncology, Mercy
Mercy Clinic
Syed Zia Ul Huq, MD, Oncology, Hematology, Mercy
Mercy Clinic
Bethany Graham Sleckman, MD, Oncology, Mercy
Mercy Clinic