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Meet the Staff


Robert Weissinger, D.O.


Robert E. Weissinger, D.O., graduated from Des Moines University in 1989.  After completing a rotating internship and family practice residency at Des Moines General Hospital, he started family practice clinics in Panora and Stuart, Iowa

After completing the American Osteopathic Association Specialty Board in Hospice and Palliative Medicine, he joined Mercy Medical Center – North Iowa.  Dr. Weissinger is the acting Chief Medical Officer of Hospice and Palliative Medicine of North Iowa. 

He is the co-founder of the Iowa Hospice and Palliative Medicine Coalition, and the originator of the Palliative Emergency Response Team at Mercy Medical Center – North Iowa. 



Deb Groath
D.N.P., A.R.N.P., A.C.H.P.N.
Palliative Medicine
Nurse Practitioner


Dr. Groath graduated from Mount Mercy University in Cedar Rapids, Iowa and spent the first 10 years of her career at the University of Iowa as a nursing leader in the neurosurgical  department. She then went on to receive her Nurse Practitioner Degree and Doctoral Degree in Nursing from Winona State University in Rochester, Minnesota. She is certified as an Advanced Hospice and Palliative Care Nurse and is pursuing certification as an Advanced Holistic Nurse.

 Dr. Groath joined Mercy - North Iowa in 1986, serving in a variety of leadership positions, focusing mainly on the provision of quality care. While pursuing her Doctoral degree, she focused her research on how one could be therapeutically present with patients and families and the skill set necessary while balancing the most critical aspect of self-care. She found she could best serve patients and families holistically, and listen generously to their stories, while finding ways to ease they’re suffering by joining the Palliative Care and Hospice Team in 2008.


zook_ann.jpgAnne Zook
B.S.N., M.A., C.H.P.N.
Palliative Medicine Coordinator


Anne Zook’s Palliative Medicine journey started with the inspirational death of her grandmother.  It was then she decided to become a nurse, realizing at some time she would be involved with end of life care. 

While working towards her BSN at the University of Iowa, she helped develop an outpatient program that focused on care of the elderly population who fell through the cracks between hospice requirements and their current model of health care.   While working for 21 years in various nursing capacities at Mercy Medical Center – North Iowa, she received her Master of Arts in Servant Leadership through Viterbo University, which allowed her deepen and develop her vocation in competent, creative, Christian leadership that works towards the common good for all.

She is Board Certified in Hospice and Palliative Care through NBCHPN.  She married her husband Ray on April Fools Day in 1998 and cherishes every moment they have together.  

©  2014 

 Mercy Medical Center-North Iowa | 1000 4th Street SW Mason City, IA 50401 | 641-428-7000

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