There are three groups that offer seminars, training classes and informal networking opportunities for statisticians in the Kansas City area.
The Kansas University Medical Center has a Center for Biostatistics & Advanced Informatics that offers a monthly journal club and semi-regular research seminars about Statistics.
The University of Missour-Kansas City Department of Mathematics and Statistics also has a regular seminar series, though some of these talks are mathematical rather than statistical.
The Kansas/Western Missouri chapter of the American Statistical Association holds 2-3 meetings per year, typically in the evening. Here is a list of officers and a Facebook page.