Who We Are

dr john mansfield, john mansfield md, dr patrick lassen, patrick lassen md, chad chesley md, dr chad chesley, prostate cancer washington, prostate cancer washington state, prostate cancer longview, longview urologists, urology longview, urology washington, urology washington state, Glenwood urology, Kelso urology, West Longview urology, Longview Heights urology, Ranier urology, Mint Farm urology, Highlands urology, Kalama urology, Castle Rock urology, Woodland urology, St. Helens urology, Astoria urology, Centralia urology, Olympia urology, urologist longview, urologist washington, urologist washington state, Glenwood urologist, Kelso urologist, West Longview urologist, Longview Heights urologist, Ranier urologist, Mint Farm urologist, Highlands urologist, Kalama urologist, Castle Rock urologist, Woodland urologist, St. Helens urologist, Astoria urologist, Centralia urologist, Olympia urologistLongview Urology was founded by Dr. Marion Clark in 1953, with the original office at 1430 16th Avenue in Longview. In 1966, Clark moved the practice to the Fir Street Medical Complex, and two years later, in 1968, was joined by Dr. Thomas Tossberg.

The practice continued to grow, and, in 1981, Clark and Tossberg brought Dr. Patrick Magin on board. Dr. Clark retired in 1985, and Dr. Stephen Lachance joined the group in 1989.

By 1996, additional space was again needed, so the group moved to the River Suites complex at 1801 First Avenue. In 1997, Dr. Stanley Myers joined Longview Urology and was followed by Dr. Patrick Lassen in 1999. Dr. Lachance retired in 2000, and Dr. Chad Chesley joined the practice in 2003.

In June 2006, Longview Urology moved to its present location at Pacific Surgical Institute on 9th Avenue in Longview and Dr. Magin retired shortly thereafter. In May 2008, Dr. Myers left the practice. Dr. John Mansfield joined Longview Urology in June 2011.