Martha A. Badger APRN My Medical Specialty: NephrologyRelated Departments: Nephrology & Hypertension Female | Speaks: English Board Certification American Nurses Credentialing Center (Acute Care) This Provider Practices at: Cotton O'Neil Mulvane823 S.W. Mulvane St.Topeka, KS 66606-1764(785) 354-9591Fax: (785) 368-0478View Google Map Suggest An Update Credential change? New location?Enter provider updates below.Close Your Email* Update Details This iframe contains the logic required to handle Ajax powered Gravity Forms. Need an appointment? Log into MyChart Don't have MyChart? Sign up today.