I have been on Medicare for a long time. I have home tested weekly for 10-15 years and have always had it covered by MC. I have a co-pay of $4/test and receive all testing materials (meter, strips, lancets) free of charge. I test every Wednesday in the AM.....a 10 minute test in my pajamas. Weekly testing may be "overkill" since my INR is seldom out of range..........but maybe weekly testing helps me stay in range with only minor warfarin adjustments (seldom needed). My PCP is notified of my INR without cost to me. I think he receives a monitoring fee from my INR management company. IMO, if self-testing is feasible for you.......take a look at it.