University of Pennsylvania medical professor Dr. Valeria A. Arkoosh filed a statement of candidacy to run in what will most likely be an open race for Rep. Allyson Y. Schwartz’s 13th District seat.

Schwartz has all but announced her campaign to challenge Republican Gov. Tom Corbett, in 2014. Last month, the Democratic Congressional Campaign Committee replaced her as committee’s national finance chair.

Arkoosh was not immediately available for comment. But PoliticsPA, a Keystone State political blog, noted Arkoosh is a Schwartz ally and her husband is the congresswoman’s campaign treasurer.

Schwartz’s suburban Philadelphia district will likely attract several Democratic candidates once it officially becomes an open seat. Schwartz won re-election in 2012 by more than 37 points. Her successor would likely be determined in the Democratic primary.

Others candidates on the Democratic radar include state Rep. Brendan Boyle, state Sen. Michael Stack, former Philadelphia City Controller Jonathan Saidel, and Montgomery County Commissioner Josh Shapiro.

Bloomberg’s Greg Giroux reported the Arkoosh news earlier Thursday.