Dr. Ingvoldstad is a specialist in the medical and surgical treatment of the vitreous and retina, diabetic eye disease, and cataracts. A native of South Dakota, Dr. Ingvoldstad received a bachelor of science degree from the University of New Hampshire. He received his medical degree from the Medical College of Georgia. After completing a one-year internship in internal medicine and a three-year residency program in ophthalmology at the University of Missouri – Kansas City, Dr. Ingvoldstad completed a vitreoretinal disease and surgery fellowship in June 2006.  He earned an MBA in Healthcare Management from the University of Colorado at Denver in July 2018.


Dr. Himebaugh is a specialist in cataract surgery, corneal transplantation, external eye and corneal disease, LASIK and PRK surgery, and the medical and surgical treatment of eye disease.
A native of Utah, Dr. Himebaugh received his bachelor’s degree in micro-biology from Brigham Young University and his medical degree from University of Texas Southwestern Medical Center. Dr. Himebaugh completed a one-year internship in internal medicine at the University of Utah and a three-year residency in ophthalmology at West Virginia University. He completed his formal medical training with a fellowship in cornea, external disease and refractive surgery at the Washington University School of Medicine. Dr. Himebaugh is board certified through the American Board of Ophthalmology.


Dr. Goergen joined Cass Health in the fall of 1998. He graduated from Pacific University College of Optometry in Forest Grove, Oregon in May 1998. He completed his undergraduate degree at the University of Iowa with a Bachelor of Arts degree in Biology. Dr. Goergen specializes in medical eye care management (glaucoma, macular degeneration, diabetes, and cataracts), emergency medical eye care, and contact lenses.