About Us

Five Valleys Urology had yet to be formed when Dr. David Guth, one of our founding partners, struck out on his own in 1977 to form a solo practice in the newly constructed Garden City Medical Arts Building. Throughout the years, Dr. Guth shared space with other urologists but it wasn’t until 1998, when Dr. Karl Westenfelder joined him, that they saw the need for an additional urologist in Missoula. Together, Drs. Guth & Westenfelder brought Dr. Garrick Simmons to the community in 2001 and Five Valleys Urology was formed in 2002. Dr. Kevin Kronner joined the group upon Dr. Guth’s retirement in 2006. The group has flourished ever since, with Dr. Christopher Wicher joining in 2011, Rick Wiesemann, PA-C joining in 2011, and Whitney Martin, PA-C joining in 2012.

Today, our 4 urologists and two physician assistants provide patient-driven care for all ages at area hospitals and surgery centers as well as our comfortable and friendly office setting. Our practice is located one block west of North Reserve Street, equidistant between the campuses of each Missoula hospital. Our physicians have surgical privileges at 5 area hospitals as well as Big Sky Surgery Center. With excellent training, state of the art equipment, and additional certifications, our board-certified physicians and staff are here to care for you, personally.

Our mission is to deliver high-quality, comprehensive, and advanced urologic care in a timely fashion with expertise and compassion to patients across the region. We accomplish this by providing prompt and effective clinical services, expert surgical care, and cutting-edge technology to patients. Our plan of care is coordinated with referring physicians throughout the country, and we work hard to make sure patients and their families have all the information they need to make informed decisions.

Click on any link below to learn more about our physicians.  All our physicians are board-certified Diplomates of the American Board of Urology, a member board of the American Board of Medical Specialists. They all participate in Medicare’s quality reporting initiatives, and all are in good standing with the Montana Board of Medical Examiners.

Our Providers

Five Valleys Urology Providers Group Photo

Garrick R. Simmons, MD Richard L. Wiesemann, PA-C Kevin M. Kronner, MD Whitney Martin, PA-C Karl R. Westenfelder, MD Christopher G. Wicher, MD

Our Staff

Five Valleys Urology employs experienced and licensed registered nurses, licensed practical nurses, and certified medical assistants. The business side of our practice is led by certified professionals.

John O’Connor, FACMPE Practice Administrator

John has been with Five Valleys Urology since 2002 and is a Fellow of the American College of Medical Practice Executives. He is a past-president of the Montana Medical Group Management Association (MTMGMA) and past-chair chair of the Government Affairs Committee and  Urology Administration Assembly for national MGMA. John is a member of the American Urological Association (AUA) Practice Management Network. John is a board member for the Montana Medical Association Healthcare Plan & Trust and a Core Group member of Monida Healthcare Network.  Mr. O’Connor serves on the boards of the Missoula YMCA, Missoula Parks & Recreation and Friends of Missoula Parks, Missoula Ultimate Federation, and RATPOD, a benefit for Camp Mak-A-Dream. John hails from Indianapolis and is a proud graduate of Purdue University. email

Bianca Swift, Business Office Manager

Bianca joined Five Valleys Urology in February of 2015. A native of Romania, she received a Bachelor Degree in engineering from Transylvania University. She earned a Certificate in Accounting from UCLA. Her past experience in the medical field includes coding for a Mental Health practice and an Oral and Maxillo-Facial practice. Bianca volunteers her time as the Treasurer for her church. email


Our Commitment
We are all here to provide patients excellent care and genuine customer service.

  • Staff undertake annual OSHA, HIPAA, and Safety training
  • We observe all federal privacy rules
  • Our front office staff have extra training in patient identity theft protection
  • We have staff trained in specific programs for overactive bladder, urodynamics, Botox, Peyronies disease, Advanced Prostate Cancer Care, and the MonaLisa Touch Laser

Patient Survey

Patient Survey (PDF) »

Are you a patient? Please take our brief patient satisfaction survey. Make sure you click on the link to your provider. Your confidential answers will help us provide better service in a pleasant atmosphere. We value your feedback. Thank you for your participation.

Contact Information

Email Us »

Missoula Office
2875 Tina Ave., Ste 101
Missoula, MT 59808
P: 406-728-3366
F: 406-728-0651
Hours: 8am - 5pm (M-F)

Location Map

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Five Valleys Urology Map