About Us

We want to offer a smile and a handshake and the assurance that we will put your health in good hands. At Crighton Olive Dunn Surgical Group, we know the frustrations and dismay many of you experience while dealing with a medical situation. There are many questions left unanswered, results not met and trust not established. We exist to change that.

The board certified physicians at Crighton Olive Dunn Surgical Group are the area’s most experienced and well-respected general surgeons. As the area’s only independent surgeons, it is our mission to provide the latest technology and exceptional care to our patients. We know you’ll have questions, and we will answer them in an honest, efficient manner. We know you want results, and our surgical expertise won’t leave you disappointed. We know you want trust, and we will be there as a friend and ally.

John Crighton

John C. Crighton, MD

Board Certified:

American Board of Surgery

Fellow:

American College of Surgeons


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Chapman Olive

Chapman Olive, MD

Board Certified:

American Board of Surgery

Fellow:

American College of Surgeons


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Charles Dunn

Charles W. Dunn, MD

Board Certified:

American Board of Surgery

Fellow:

American College of Surgeons


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Brian Biggers

Brian D. Biggers, MD

Board Certified:

American Board of Surgery

Fellow:

American College of Surgeons


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COD Staff

Our Staff

We know it’s not just the physicians that leave an impression, it is the whole staff. From the first person who greets you to the nurse that attends to your needs, rest assured that every member of the Crighton Olive Dunn team will treat you with respect and kindness. Our staff makes it their top priority to treat you as part of the family, and not just a face.

What Our Patients Are Saying

Our patients matter the most, so what they say about us means a lot.

“After suffering from GERD for years, the minimally invasive procedure performed by the surgeons at Crighton Olive Dunn Surgical Group made it possible for me to live a normal life again.”

—Bob | Springfield

“I’m so glad the doctor in West Plains couldn’t get me in, I just love everyone in this office.”

—Charlotte | Mountain Grove

“All the problems I had from GERD, Dr. Olive made go away. Everyone has been so great.”

—Diane | Springfield

“This place always makes me smile – everyone is so compassionate. Being recently diagnosed with breast cancer the staff were so helpful.”

—Anne | Alton

“My mind was always put to ease. Dr. Biggers shows how he cares by taking the time with his patients.”

—Diane, Daughter of patient