Tammy Canfield, MSN, RN, CNP, ACNP-BC

Certified Acute Care Nurse Practitioner
Hematology and Oncology

Nurse Practitioner

Education & Training

Diploma of Nursing from Mansfield General Hospital School of Nursing
Bachelors of Nursing from Ohio State University
Masters of Science in Nursing, Acute Care Nurse Practitioner from University of Southern Indiana


Certified Acute Care Nurse Practitioner ANCC

Professional Membership

Sigma Theta Tau – International Honor Society of Nursing, Ohio Association of Advanced Practice Nurses, Oncology Nurses Society, Advanced Practitioners in Hematology and Oncology
Awarded Beverly June Frederking Scholarship by USI Faculty


Tammy Canfield has extensive experience in the acute and intensive care settings, including hematology/oncology, cardiology, cardiac surgery and education during her nurse practitioner career.

Tammy works at our Mansfield office in collaboration with Dr. Exten and Dr. Viswanathan to provide evaluation and treatment of patients with blood disorders and cancer. She follows the patients closely from initial consultation, treatment and long-term follow up. She strives to make every patient feel as if they were the most important patient and treats them with respect and compassion.

Tammy also actively volunteers in faith based medical missions abroad.

Learn more about our Practice