William C. Guenther, MD

William C. Guenther, MD


Physician at Fox Valley Hematology & Oncology FVHO Health & Wellness Center and Fox Valley Hematology & Oncology Waupaca

Locations: Appleton and Waupaca

Dr. Guenther graduated from the University of Iowa, Iowa City, Iowa and completed his residency at the Iowa Methodist Medical Center in Des Moines, Iowa. His hematology/oncology fellowship training was completed at the University of Iowa Hospitals and Clinics. He is board certified in both medical oncology and hematology. He is a member of the Wisconsin State Medical Society. Dr. Guenther started his solo practice in Appleton in 1988 and later formed Fox Valley Hematology & Oncology, S.C. with Dr. Tom Ryan in 1990.

He and his wife, Jane, and their three children spend free time at their home in Door County on Horseshoe Bay. Dr. Guenther also enjoys playing golf when he gets the chance. Even though he is a Chicago Bears fan, he roots for the Packers most of the time.

FVHO Health & Wellness Center

3925 N. Gateway Drive

Appleton, WI  54913

(920) 749-1171

Fax: (920) 749-1172


Fox Valley Hematology & Oncology Waupaca

3063 County Hwy QQ

Waupaca, WI 54981

(715) 602-4900

Fax (920) 749-1172