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 was when Dr. Byron Olson decided to retire that the possibility of forming a group became more realistic. Dr. Karl Westenfelder took over Dr. Olson’s practice in 1998 and saw the need for an additional urologist in Missoula. Together, Drs. Guth & Westenfelder brought Dr. Garrick Simmons to the community in 2001 and formed Five Valleys Urology 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 clinical research opportunities 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 clinical research coordinators. In addition, our business office manager is a certified professional coder and our practice administrator is a certified medical practice executive.

John O’Connor, CMPE Practice Administrator

John has been with Five Valleys Urology since May 2002 and is a certified medical practice executive. He is a past-president of the Montana Medical Group Management Association and past-chair chair of the Government Affairs Committee for the national Medical Group Management Association. John is currently chair of the Urology Administration Assembly of MGMA, and is a member of the American Urological Association (AUA) Practice Management Network. He has traveled to Washington, DC to work on Medicare physician reimbursement issues and has served on a national panel for CMS demonstration projects. Locally, John is a board member for the Montana Medical Association Healthcare Plan & Trust, is a Core Group member of Monida Healthcare Network, and an organizer of The Missoula Mile for Prostate Cancer Awareness and Treatment.  John has a special interest in the use of technology in healthcare, performance dashboards, and quality reporting. Mr. O’Connor serves on the Missoula Parks Board and Friends of Fort Missoula Regional Park Executive Committee. He is board President of the Missoula Ultimate Federation, board President for Friends Of Missoula Parks, and serves on the board for RATPOD, a benefit for Camp Mak-A-Dream. John hails from Indianapolis and is a proud graduate of Purdue University.

Melanie Scott, CPC, PCS Business Office Manager
Melanie has over 10 years experience in medical billing and coding. She is a certified professional coder with the American Academy of Professional Coders and a physician coding specialist (PCS) with the American College of Medical Coding Specialists. She is the past president of the Missoula AAPC chapter. Melanie is also an instructor in medical coding, medical insurance billing, and medical terminology at the Lifelong Learning Center in Missoula.


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

  • Staff undertake annual OSHA 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, and Botox

Five Valleys Urology is Moving!

Starting 4/27, our offices will be located at:

2875 Tina Avenue, Suite 101
Missoula, MT 59808
Map Link »

Please note the following dates:

We will be closing our current North Office (601 W Spruce St Ste G) on 4/22/11.

The South Office (2831 Fort Missoula Rd - Physician Center II, Ste 105) will remain open until 4/26/11.

We'll begin seeing patients in our new office beginning 4/27/11.

Please Contact Us with any questions. We look forward to showing you our new space!