The American is considering whether to leave IndyCar for NASCAR when her Andretti Autosport contract expires at the end of this season.
She ran a part-season in NASCAR Nationwide with JR Motorsports last year and will do the same again with the Chevrolet team this season.
Patrick had already announced that she would enter the four Nationwide races - at Daytona, Phoenix, Las Vegas and Bristol - that take place before the IndyCar season commences.
The JR team has now added that she will contest the mid-season rounds at Chicagoland, Daytona, Montreal, Richmond and Kansas during gaps in the IndyCar schedule, before racing in the final three events at Texas, Phoenix and Homestead once her IndyCar commitments are finished for the year. The Montreal race will be her first experience of a NASCAR event on a road course.
Patrick struggled to make an impression in Nationwide during 2010, with a 19th-place finish at Homestead her best result. But she is optimistic that she will be more competitive this year as her experience builds.
"I have a much different perspective heading into this season," she said.
"I know a little more of what to expect, and I'm not as out of my element. I've had a year to work with my team, and there is a comfort level that comes with returning to some of these tracks."
Patrick enters first four 2011 roundsNadal set for Mallorca role
