If health reform bill goes thru...

The new increases in Medicare taxes will apply to individuals making more than $200,000 a year, or $250,000 for married couples.
The measure, set to go into effect next year, is estimated to raise more than $200 billion over 10 years.
Roughly 4 million households -- or 2.4% -- will be affected by the increase initially, according to new estimates from the Tax Policy Center. By 2022 that number will grow to 8.3 million, or 4.6%.

Source: Health reform's tax bite By Jeanne Sahadi @CNNMoney March 30, 2012