Stillwater ADDRESS 1923 Swenson St. Stillwater MN 55082 PHONES WORK: (651)351-5077 FAX: (651)351-5084 URL: http://www.doerksenmedicalgas.com Robert Kroening  : Medical Gas Verifier 6030 Award:(12-21-2005) Expires:(12-21-2008)  : Medical Gas Inspector 6020 Award:(12-21-2005) Expires:(12-21-2008)