Covenant Health is an innovative, Catholic regional delivery network and a leader in values based, not-for-profit health and elder care. We sponsor hospitals, nursing homes, assisted living residences and other health and elder care organizations throughout New England.

Medical Providers

Our cancer care team includes board-certified oncologist/hematologists who specialize in the diagnosis and treatment of cancer, skillfully coordinating each individual's overall care including chemotherapy and related treatments. Supported by dedicated cancer nurses and staff, our physicians offer 24-hour-a-day coverage in an atmosphere of compassion and support. Click on the links below to learn more about the members of our multidisciplinary cancer care team.

Mary A. Voltz, MD

Umit Tapan, MD

Nirav Patel, MD

Jennifer Murphy, MSN, RN, OCN
Director of Oncology Services

Lisa Kennedy Sheldon, PhD, APRN, AOCNP
Nurse Practitioner

Mary Schmitt, MS, APRN, FNP-BC, OCN
Nurse Practitioner

Stephanie Tewksbury, ACNP-BC, ONC
Nurse Practitioner

Kristin Fox, ANP-BC, APRN
Nurse Practitioner