Meet Our Team

Rachel Wilberding, APDA WisconsinRachel Wilberding, MS
Executive Director

Rachel Wilberding directs APDA Wisconsin, leading its programmatic, strategic and fundraising efforts. With significant experience in event management and fundraising, Rachel is excited to grow the Wisconsin Chapter to bring even more services to people with Parkinson’s and their families.

She is excited about our chapter’s 2019 goals to:

  • Offer PRESS and Good Start programs, and increase the exercise grant participation increase awareness of research successes here in Wisconsin.
  • Expand community outreach and media relations to improve awareness and understanding of Parkinson’s disease; and its impact on the lives of people living this state. With her team, she’ll be sharing information with the Parkinson’s community via print and digital newsletters, presentations, speeches, Board involvement, and distributed materials at clinics and doctors’ offices
  • Increase the number of volunteers, committee members and board members, so that we can better reach and serve those who need us most.

Rachel holds a Master of Science in Human Nutrition and Functional Medicine. She enjoys exploring how healthy lifestyles can positively impact disease processes and progression. She is a career non-profit executive, working with organizations in the Madison and Milwaukee metro areas.

Linda BesserLinda Besser
Office Administrator

Linda Besser provides administrative coordination and support for the Wisconsin Chapter’s programmatic and fundraising efforts, ultimately meeting the objectives of APDA’s mission: Every day, we provide the support, education, and research that will help everyone impacted by Parkinson’s disease live life to the fullest. Through her dedicated efforts for APDA Wisconsin, Linda supports the ever growing needs of the Parkinson ’s disease community.

Linda graduated from the University of Wisconsin-Madison with a degree in Sociology/Child and Family Studies. She worked in the criminal justice field for more than 30 years in law enforcement, and as a victim service specialist and educator. Linda was a criminal justice professor at Madison Area Technical CollegeAs a victim service specialist, she assisted in grant reporting and fundraising for the nonprofit. Also during her career, Linda served on the Board of the Safe Harbor Child Advocacy Center and assisted in the center’s operations, fundraising and training new forensic interviewers.

You can reach Rachel and/or Linda at


Teresa Mangin, MD
APDA Wisconsin Medical Director

Dr. Teresa Mangin is a movement disorders trained neurologist specializing in the care of patients with Parkinson’s disease. She completed medical school and neurology residency at the University of Pennsylvania in Philadelphia. She went on to train in movement disorders at Oregon Health and Science University (a National Parkinson Foundation Center of Excellence), and the Portland Veterans Affairs Medical Center. During her time at OHSU, she completed the Human Investigations Program in clinical research.

Dr. Mangin practiced at the Dean Clinic, where she specialized in movement disorders and dementia, and ran Dean’s Memory Assessment Clinic. She served as co-chair for the St. Mary’s Hospital Ethics Committee. Dr. Mangin joined the Neurology Department at University of Wisconsin–Madison in 2015 as a clinical assistant professor. In addition to movement disorders and dementia, she has an interest in palliative care for these disorders. She completed the Palliative Care Education and Practice course through Harvard Medical School.