Since 1976, the Wichita Nephrology Group has specialized in kidney care and the treatment of kidney diseases, and now serves patients throughout Kansas. Menu. Main Office Phone (316) 263-5891; ... Patient Portal ; Review Us ; Main Location: 818 N Emporia, Suite 310, Wichita, KS 67214; Main Phone: (316) 263-5891; Fax: (316) 263-3083;.