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Meet the ear, nose and throat specialists at Cass Regional

The physicians of ENT Associates of Greater Kansas City provide services at Harrisonville Medical Clinic, located in Rock Haven Medical Mall on the Cass Regional campus.

An ear, nose and throat (ENT) specialist, also called an otolaryngologist, is in the clinic Monday, Wednesday and Thursday and every other Friday, from 8 a.m. to 5 p.m.

The physicians from ENT Associates of Greater Kansas City who practice at Harrisonville Medical Clinic are Brandon Johnson, MD; Jeffrey Straub, MD; and Nicholas Wirtz, MD.

Brandon Johnson, MD, holds a bachelor's degree in biology from Saint Louis University. He attended medical school at the University of Missouri–Columbia and completed his residency training at the University of Kansas Medical Center. He is certified by the American Board of Otolaryngology–Head and Neck Surgery (ABOHNS). Dr. Johnson treats the full spectrum of ear-, nose- and throat-related conditions.


Jeffrey Straub, MD, holds a Bachelor of Science degree in biological chemistry from Tulane University in New Orleans. He received his medical degree from the University of Kansas School of Medicine. His residency in otolaryngology–head and neck surgery was performed at Ohio State University Wexner Medical Center, along with his fellowship in laryngology. He is certified by ABOHNS.


Nicholas Wirtz, MD, is an ear, nose and throat specialist and a head and neck surgeon, specializing in the management of cancers of the head and neck. A native of Blue Springs, Missouri, he earned his medical degree from the University of Missouri–Columbia and completed residency training at the University of Minnesota. Dr. Wirtz completed a fellowship in advanced oncologic head and neck surgery at the University of Pittsburgh and is certified by ABOHNS.

Categories: Otolaryngology

Head in for great care

To schedule an appointment with an ENT specialist at Harrisonville Medical Clinic, call 816.380.2446.