Karen S. Hergenreder, CRNA Contact Information Call us at: (419) 251-4515 Fax us at: (419) 251-4876 Anesthesiology & Pain Medicine2213 Cherry StToledo, OH 43608 (map) Learn more about Karen S. Hergenreder Patient Care Locations Nationwide Children's Hospital Toledo Contact Information Anesthesiology & Pain Medicine Call us at: (419) 251-4515 Fax us at: (419) 251-4876 2213 Cherry StToledo, OH 43608 (map)