Minnesota Oncology

Dietitians

Heidi Ganzer, MS, RD, CSO, LD

H_Ganzer Heidi has over two decades of nutrition experience in a variety of health care settings. She has many years of clinical experience, working primarily in oncology the last several years. Heidi has a deep passion to empower patients to improve their health and well-being through their diet. She works primarily with Minnesota Oncology patients being cared for on the St Paul side of the metro area.

  • Nationally Certified Specialist in Oncology Nutrition – CSO
  • Member of the Oncology Nutrition Dietetic Practice Group
  • Member of the Integrative and Functional Medicine Practice Group
  • Member of the Food and Culinary Professionals Dietetic Practice Group
  • Member of the Academy of Nutrition & Dietetics

Dianne Piepenburg, MS, RD, CSO, LD

D_Piepenburg With over a decade of experience, Dianne brings her enthusiastic outlook to Minnesota Oncology. A passion for nutrition, as well as her desire to teach and help others, has been the driving force of her career. Dianne seeks to have a positive impact on the lives of Minnesota Oncology patients. She works primarily with Minnesota Oncology patients being cared for on the Minneapolis side of the metro area.

  • Oncology Nutrition Dietetic Practice Group
  • Nationally Certified Specialsit in Oncology Nutrition
  • Member of the Academy of Nutrition & Dietetics

Tracie Swearingen, RD, CSO, LD

Swearingen_sm Tracie has worked in the field of dietetics since 1999 and as an oncology dietitian since 2005.

As an Oncology Dietitian her goal is to provide compassionate care and empathy to those dealing with a cancer diagnosis.  

“I want to prevent or decrease a patient’s symptoms caused by treatment or diagnosis.  Helping to maintain our patients’ quality of life is very important to me.  My role as an oncology Dietitian focuses not only on good nutrition during cancer treatment, but also includes a focus on cancer prevention and survivorship.” 

Tracie will serve patients primarily in the Coon Rapids and Fridley clinics.

Professional Affiliations

  • Member of the Academy of Nutrition and Dietetics
  • Member of the Oncology Nutrition Practice Group
  • Nationally Certified Specialist in Oncology Nutrition