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Meet Our Team

Our surgical team is the largest and most experienced in South Dakota. We have 11 board-certified surgeons and 13 physician assistants and nurse practitioners working together to provide the best experience to our patients. Our physicians offer support and specialized information as well as compassionate guidance and expert surgical care individualized to deliver the best results.

We provide transplant and cancer surgery as well as specialized hospital care with surgical intensive care, trauma and emergent surgical services. Our physicians can perform minimally invasive procedures that decrease pain and scars and offer a quicker recovery to patients. Our team also includes some of the most qualified robotic surgeons in the country who can perform extremely complex procedures with less complications and patient discomfort.

Our expert surgeons and surgical teams are devoted to providing the best patient care and surgical experience imaginable. We go above and beyond performing surgeries, we incorporate you and your whole family into the experience from the moment you first enter our door until you are finished with recovery.

Our physicians:

Paul Bjordahl, MD

Medical School: University of South Dakota Sanford School of Medicine (Vermillion, SD)

Fellowship: Surgical Critical Care: Mayo Clinic (Rochester, MN)

Certifications: American Board of Surgery: General Surgery & Surgical Critical Care


Paula Denevan, MD

Medical School: University of Nebraska Medical Center College of Medicine (Omaha, NE)

Certifications: American Board of Surgery: General Surgery



Jesse Dirksen, MD

Medical School: University of South Dakota School of Medicine (Sioux Falls, SD)

Fellowship: Breast Surgical Oncology, University of Iowa Hospitals and Clinics (Iowa City, IA)

Certifications: American Board of Surgery: General Surgery

Dennis Glatt, MD

Medical School: University of South Dakota (Vermillion, SD)

Certifications: American Board of Surgery: General Surgery


Jason Knudtson, MD

Medical School: University of South Dakota (Vermillion, SD)

Fellowship: Surgical Critical Care: Beth Israel Deaconess Medical Center/Harvard Medical School (Boston, MA)

Certifications: American Board of Surgery General Surgery & Surgical Critical Care

Curtis Peery, MD

Medical School: University of South Dakota (Vermillion, SD)

Certifications: American Board of Surgery: General Surgery


Matthew Sorrell, MD

Medical School: Vanderbilt University School of Medicine (Nashville, TN)

Fellowship: Critical Care: University of Utah (Salt Lake City, UT)

Certifications: American Board of Surgery & Surgical Critical Care


Thavam Thambi-Pillai, MD

Medical School: University College Galway, National University of Ireland (Galway, Republic of Ireland).

Fellowship: Human Islet Cell Transplantation: University of Pennsylvania (Philadelphia, PA)

Transplantation Surgery: University of Cincinnati (Cincinnati, OH)

Certifications: American Board of Surgery: General Surgery


Gary Timmerman, MD

Medical School: Washington University School of Medicine (St. Louis, MO)

Certifications: American Board of Surgery: General Surgery


Matthew Tschetter, MD

Medical School: University of South Dakota School of Medicine, (Sioux Falls, SD)

Fellowship: Colon & Rectal Surgery, CHRISTUS Santa Rosa Hospital (San Antonio, TX)

Certifications: American Board of Surgery: General Surgery


Kirke Wheeler, MD

Medical School: University of South Dakota School of Medicine (Vermillion, SD)

Certifications: American Board of Surgery: General Surgery