Medical College of Wisconsin Division of Colorectal Surgery - Faculty and Advanced Practice Providers
Faculty
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Ludwig_Kirk.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Kirk A. Ludwig, MD, FACS, FASCRS
Chief, Professor
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Calata-Jed-photo-015-suit-8-2021.jpg??w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Jed Calata, MD, FACS, FASCRS
Assistant Professor
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Peterson_Carrie-2022.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Carrie Peterson, MD, MS, FASCRS
Associate Professor
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Ridolfi_Timothy.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Timothy J. Ridolfi, MD, MS, FASCRS
Associate Professor
Advanced Practice Providers
![headshot](/-/media/MCW/Departments/Surgery/Colorectal-Surgery/Chelsea-Brackmann_Academic-Profile.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Chelsea Brackmann, MPAS, PA-C
Physician Assistant
![headshot](/-/media/MCW/Departments/Surgery/Colorectal-Surgery/Lizzy-Drew_Academic-Profile.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Elizabeth Drew, RN, MSN, APNP
Nurse Practitioner
![headshot](/-/media/MCW/Departments/Surgery/Colorectal-Surgery/Nicole-Kellner_Academic-Profile.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Nicole Kellner, RN, MSN, APNP
Nurse Practitioner
![headshot](/-/media/MCW/Departments/Surgery/Colorectal-Surgery/Sarah-Lundeen_Academic-Profile.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Sarah Lundeen, RN, MSN, APNP
Nurse Practitioner
![headshot](/-/media/MCW/Departments/BioFPOMCWlogo.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Abby Meyers, MSPAS, PA-C
Physician Assistant
![headshot](/-/media/MCW/Departments/BioFPOMCWlogo.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Maria Park, MPAS, PA-C
Physician Assistant
![headshot](/-/media/MCW/Departments/BioFPOMCWlogo.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Katie Swanson, MSPA, PA-C
Physician Assistant
![headshot](/-/media/MCW/Departments/Surgery/Colorectal-Surgery/Samantha-Wolff_Academic-Profile.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)