Moseley was 4-4 with a 4.96 ERA in 16 games for the Yankees in 2010, including four starts. The Yankees non-tendered Moseley last week.
Moseley got an endorsement from San Diego manager Bud Black, who was the pitching coach in Anaheim for seven seasons. Moseley came up with the Angels and pitched for them from 2006-2009.
Moseley was 8-7 with a 5.41 ERA in 80 games (32 starts) for the Angels before signing with the Yankees in February.
The Padres are hoping a change of leagues and divisions as well as moving from the hitter-friendly Yankee Stadium to PETCO Park will help Moseley.
The Padres envision Moseley as having the potential to compete for the fifth starter job, though he could certainly pitch in long relief. The Padres' long reliever from last season, Edward Mujica, was traded to the Marlins last month in the Cameron Maybin deal.
Moseley tossed two scoreless innings with four strikeouts and was the winning pitcher in Game 1 of the American League Championship Series against the Rangers.
The Padres' starting rotation, if the season started today, would likely include Mat Latos, Clayton Richard, Tim Stauffer, Aaron Harang and Moseley.
Elsewhere, Padres general manager Jed Hoyer said he spent most of Tuesday meeting with agents and teams. The Padres aren't believed to be close on any deals regarding position players, but have made some inroads.
The Padres have some interest in free-agent first baseman Lyle Overbay, who spent the last five seasons with the Blue Jays. Overbay hit .243 with 20 home runs and 67 RBIs over 154 games last season.
Overbay is a left-handed hitter, which isn't usually a good fit for PETCO Park, but he's a doubles machine, having hit more than 30 of them in each of the last seven seasons.
There are other options at first base, though the Padres could be looking to next fill their middle-infield needs, where they're looking for a shortstop and a second baseman. There are intriguing names out there, like Orlando Cabrera and Orlando Hudson. Both could likely be had on a one-year deal.