Paul W. Wolpert M.D. ,F.A.C.S.
Dr. Paul Wolpert is a graduate of Creighton University School of Medicine and the Creighton University Affiliated Hospital's General Surgery Residency.  He is a Diplomat of the American Board of Surgery and is a Fellow of the American College of Surgeons.  He has practiced in Sioux City, Iowa, since 1973.
Michael L. Wolpert M.D., F.A.C.S.
Dr. Mike Wolpert is a graduate of Creighton University with a bachelor of science in biology.  He graduated from Creighton University School of Medicine and the Creighton University Affiliated Hospitals General Surgery Residency.  He is a Diplomat of the American Board of Surgery and is a Fellow of the American College of Surgeons.  Dr. Wolpert is the Director of Trauma at Mercy Medical Center and is also a member of the American Society of Bariatric Surgeons (ASBS).  He has practiced in Sioux City since 1980.
Keith A. Vollstedt, M.D., F.A.C.S.
Dr. Keith Vollstedt is a graduate of Morningside College, with a Bachelor of Science Degree.  He graduated from the University of Iowa College of Medicine and the University of Iowa Hospitals and Clinics General Surgery Residency.  He is a Diplomat of the American Board of Surgery and is a Fellow of the American College of Surgeons.  He is also a member of the American Society of Bariatric Surgeons (ASBS).  Dr. Vollstedt has been with General Surgery and Diagnostics, P.C., since 1999.
Lawrence T Volz M.D., F.A.C.S.
Dr. Larry Volz is a graduate of the University of San Diego with a Bachelor of Arts in Chemistry.  He graduated from Creighton University School of Medicine and the Surgical Residency Program at Baystate Medical Center in Springfield, MA.  He is a Diplomat of the American Board of Surgery and is a Fellow of the American College of Surgeons.  Dr. Volz served four years as a Major in the United States Air Force, before joining General Surgery and Diagnostics, P.C., in 2006.
Lori A. Hubert PA-C
Lori Hubert received her Physician Assistant Certificate at the University of North Dakota in 2003.  She is currently a member of the American Academy of Physician Assistants, as well as the American Academy of Surgical Physician Assistants.  Lori had previously received her Surgical Technology certificate and associate's degree in nursing from Western Iowa Tech Community College.  Lori has been with General Surgery & Diagnostics, P.C., since 2005.