TomoTherapy has appointed John J. Greisch to its board of directors, effective Jan. 31.

Greisch will replace Michael J. Cudahy, 83, founder and former CEO of Marquette Medical Systems, is retiring from the TomoTherapy board of directors on Jan. 31, to pursue philanthropic activities.

Greisch has 30 years of corporate finance and operational experience, and currently serves as corporate vice president and president for Baxter International.