DWEB-CMS2B

Crystal Tallman, RD, CSO, LD is the outpatient dietitian at Mercy Cancer Center in downtown Des Moines.  She obtained her Certified Specialist in Oncology Nutrition (CSO) credential in 2011 and currently serves as the Iowa state representative for the oncology nutrition practice group within the Academy of Nutrition and Dietetics.  Crystal is currently pursuing her master’s degree in dietetics through Iowa State University.  

Barb Wisnieski, RD, LD is the outpatient dietitian at Mercy Cancer Center in Clive.  A registered, licensed dietitian for 23 years, she has worked in numerous clinical areas, most recently in diabetes management and cancer treatment.  She has provided nutrition assessments, individualized nutrition counseling, and group presentations on numerous topics in the greater Des Moines area.  She co-developed and co-led a wellness program for breast cancer survivors.  Barb’s special interests are in disease prevention and management and wellness promotion. 

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