Meet Our Team
Faculty



Jonathan Edward Campbell, MD
Assistant Professor
Specialties: Knee arthroscopy, ACL reconstruction, knee cartilage and ligament reconstruction






Jessica Fritz, PhD
Assistant Professor, Research Director - Center for Motion Analysis


Steven I. Grindel, MD
Professor
Specialties: Shoulder, Hand and Upper Extremity, Arthroscopic and Reconstructive Surgery

Donald A. Hackbarth Jr, MD
Professor


Gerald Harris, PhD
Professor, Director of Orthopaedic Research



Jonathan C. Kraus, MD, FAAOS
Assistant Professor
Specialty: Foot & Ankle Board Certified in Orthopaedic Surgery



Xue-Cheng Liu, MD, PhD
Professor, Director of Musculoskeletal Functional Assessment Center


Roger M. Lyon, MD
Adjunct Professor
Specialties: Pediatric Orthopaedics, Spine Surgery, and Sports Medicine

Matthew Myrvik, PhD
Associate Professor
Specialties: Pediatric Orthopaedic Surgery, Psychiatry & Behavioral Medicine

John C. Neilson, MD
Associate Professor
Specialties: Musculoskeletal Tumors, Bone and Soft Tissue Sarcomas, Limb Salvage





Gregory J. Schmeling, MD, FAAOS, FACS
Professor
Specialties: Traumatology, Post-Traumatic Deformities, Non-unions, and Infections

Jeffrey P. Schwab, MD
Adjunct Professor


Perry Shuman, MD, FAAOS
Assistant Professor
Specialties: Acute Injuries, Arthritis Pain, Sprain, Strain





Jeffrey Toth, PhD, FAIMBE
Professor, Director of the Biomaterials Research Laboratory



Mei Wang, PhD
Associate Professor, Director of the Orthopaedic Biomechanics Laboratory





Nicholas D. Young, PhD
Assistant Professor


Advanced Practice Providers


Sara Arndt, APNP
Nurse Practitioner
Ortho Inpatient, Froedtert Menomonee Falls Hospital


Erika J. Basse, PA-C, MPAS
Physician Assistant Surgical
Musculoskeletal Oncology, Adult Reconstruction


Seth D. Frey, PA-C
Physician Assistant Surgical


Lauren A. Guhl, PA-C
Physician Assistant

Patrick J. Halbach, MS, MPAS, PA-C
APP Lead


Jami Hellmer, MSN, APNP
Nurse Practitioner
Spine


Rachel M. Krueger, ACNP
Nurse Practitioner Surgical


Sara Magrath, MSN, APNP
Nurse Practitioner
Ortho Inpatient, Froedtert Menomonee Falls Hospital


Victoria Mayo, PA-C
Physician Assistant


Tyler Rehlinger, APNP
Nurse Practitioner
Hand and Upper Extremity



Jessica Stappas, APNP
Nurse Practitioner
Ortho Inpatient, Froedtert



Pediatric Advanced Practice Providers

Allison Duey-Holtz, MSN, CPNP-PC
Assistant Director, CSG Advanced Practice Provider Fellowship & Operations; Pediatric Nurse Practitioner - Pediatric Orthopedics

Michelle Filzen, PA-C
Physician Assistant
Pediatric Orthopaedics

Peter Fitzgerald, PA-C
Physician Assistant
Pediatric Orthopaedics



Megan E. Perinovic-Johnson, PA-C
Physician Assistant
Pediatric Orthopaedics

Kaylan Stoner, APNP
Pediatric Nurse Practitioner
Pediatric Orthopaedics

Christa Thalacker, APNP
Pediatric Nurse Practitioner
Pediatric Orthopaedics

