Sanford School of Medicine Residencies

General Surgery Faculty

Program Administrators  

Thav Thambi-Pillai, MD, FACS, Program Director

Melissa Johnson, MD, FACS, Associate Program Director

Luke Serck, MD, Associate Program Director

Amber Johnson, Program Coordinator
Amber.Johnson@Sanfordhealth.org  
605-357-1391  

Key Faculty  

Anesthesia
Jack Gaspari, MD

Emergency Medicine
Darren Manthey, MD 

General Surgery - Sanford USD Medical Center, Sioux Falls, SD  
Paul Bjordahl, MD, FACS
Paula Denevan, MD, FACS 
Jesse Dirksen, MD, FACS      
Dennis Glatt, MD, FACS       
Donald Graham, MD, FACS      
William Kendall Jr., MD, FACS       
Jason Knudtson, MD, FACS
Curtis Peery, MD, FACS      
Eric Rolfsmeyer, MD, FACS      
Matthew Sorrell, MD, FACS
Thav Thambi-Pillai, MD, FACS      
Gary Timmerman, MD, FACS       
Matthew Tschetter, MD, FACS      
Kirke Wheeler, MD, FACS 

General Surgery - VA Health Care System, Sioux Falls, SD
Andrew Chontos, MD, FACS     
Melissa Johnson, MD, FACS        
Ellison Kalda, M, FACS       
Tim Ridgway, MD        
Marc Schechter, MD, FACS 

General Surgery - Yankton Medical Clinic/Avera Sacred Heart Hospital, Yankton, SD
Ryan Garry, MD   
Jesse Kampshoff, MD     
Mary Milroy, MD, FACS   
Luke Serck, MD  

Gynecology Oncology
Maria Bell, MD, FACS 

Head and Neck/ENT
John Lee, MD, FACS
Chad Spanos, MD, FACS

Neuro Acute
Larry Burris, DO
Charles Miller, MD

Neurosurgery
Wilson Asfora, MD, FACS
Troy Gust, MD
Charles Miller, MD
Bryan Wellman, MD

Obstetrics and Gynecology
Maria Bell, MD, FACS
Ashley Briggs, MD
Keith Hansen, MD
Laurie Landeen, MD
Anthony Sierra, MD

Ophthalmology
Geoffrey Tufty, MD  

Orthopedic Surgery
Geoff Haft, MD
Kyle Judd, MD
Robert Van Demark, Jr., MD
Tim Walker, MD

Pathology
Joel Ziebarth, MD  

Pediatric Surgery
Adela Casas-Melley, MD, FACS
Sarah Jones Sapienza, MD, FACS
Jon Ryckman, MD, FACS 

Plastic Surgery
Heather Karu, MD, FACS
Daniel Kwan, MD

Surgical Critical
Paul Bjordahl, MD, FACS
Jason Knudtson, MD, FACS
Matthew Sorrell, MD  

Thoracic Surgery
David Maziarz, MD, FACS  
Verlyn Nykamp, MD, FACS 

Urology
Darlys Hofer, MD
Brian Lindaman, MD
Matthew Witte, MD 

Vascular Surgery
Patrick Kelly, MD, FACS
Chad Laurich, MD
Angelo Santos, MD   

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