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Mercy

Nutrition Staff

Crystal Tallman - Mercy Cancer Center Dietitian - headshot

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 has previously served as the Iowa state representative for the oncology nutrition practice group within the Academy of Nutrition and Dietetics.  Crystal’s work involves providing individual nutrition counseling and community education on a wide variety of nutrition-related topics.  One of her special interests is pursuing the growth and expansion of the Community Healing Garden at Mercy Cancer Center.  Contact Crystal at: (515) 643-8203 or ctallman@mercydesmoines.org.

Barb Wisnieski - Mercy Cancer Center Dietitian - headshot

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. Contact Barb at: (515) 358-9702 or bwisnieski@mercydesmoines.org.

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