http://www.palmettogba.com/palmetto/palmetto.nsf/SiteHome?ReadForm   Medicare DME (glasses) website   

http://www.palmettogba.com/palmetto/providers.nsf/DocsCatHome/National%20Supplier%20Clearinghouse  National Supplier Clearinghouse Medicare DME

http://www.medicarenhic.com/dme/default.aspx   NHIC Medicare DME

http://www.ngsmedicare.com/ngs/portal/ngsmedicare/home  Medicare Part B Exams website

https://connex.ngsmedicare.com/home/start.swe?SWECmd=Start&SWEHo=connex.ngsmedicare.com  Medicare Part B Exams Connex eligibility