For more information about Cytogenetics Core services or to initiate a project, contact:

Patricia T. Greipp, D.O.

  • Core Director

Ryan A. Knudson

  • Core Supervisor

Cytogenetics Core

  • Mayo Clinic
  • Stabile Building, Room 11-61
    200 First St. SW
    Rochester, MN 55905
  • Phone: 507-284-0128
  • Email:

Note: For clinical cytogenetic case questions, internal or external (Mayo Clinic Laboratories), please call the Genomics Laboratory at 507-284-2950.