Cystic Fibrosis Center Team

The University of Michigan Cystic Fibrosis Program mission is to provide excellence and leadership in patient care, services, research and education. The Adult Cystic Fibrosis Clinc at the University of Michigan Cystic Fibrosis Center was created to care for adults with cystic fibrosis in young adulthood and beyond. Our team includes doctors, nurses and other professionals, including social workers, dieticians and physical therapists, to provide our patients with comprehensive care for CF in their adult years.


  • Thomas H. Sisson, MD - Medical Director
  • Shijing Jia, MD - Associate Program Director 
  • Katie Hall, LMSW - Center Coordinator and Clinical Social Worker
  • Eeyeen Ong, RD – Center Coordinator and Clinic Dietician


Social Worker

  • Katie Hall, LMSW 
  • Mari Pitcher, LMSW


  • Ronnie S. Downer, RN
  • Natalie A. Zedro, RN 


  • Eeyeen Ong, RDN 

Physical Therapist: 

  • Kristin Keith, MS, PT 

Respiratory Therapist: 

  • Rebecca Aiello, RRT


  • Linda Fitzgerald, PharmD, BCPS 
  • Krysta Walter, PharmD 

Inpatient Advanced Practice Providers Team:

  • Vikas Sood, NP
  • Lisa Anderson (Pappas), NP
  • Tami Belote, NP
  • Christie Carlson, NP
  • Brooke Christofferson, NP
  • Julie Christopher, NP
  • Heather Collins, PA
  • Joel Hamel, PA
  • Alison Heinle, NP
  • Laura Roaden, NP
  • John Sandefur, NP
  • Denyse Stepka, NP
  • Eliza Truwit, NP
  • Dan Wingard, PA