Karen M. Gremminger, MD


Physician at Fox Valley Hematology & Oncology Oshkosh

Location: Oshkosh

Dr. Gremminger is board certified in medical oncology. She received her medical degree from Texas Tech University. She completed her fellowship in hematology and medical oncology at the University of Utah. Dr. Gremminger has been caring for patients in the Fox Valley since 1997.

She and her husband Mark Bullard, M.D., have three daughters. They enjoy cooking, sailing and international travel.

Fox Valley Hematology & Oncology Oshkosh

491 S. Washburn Street

Oshkosh, WI 54904


Fax: 920-292-1717

Toll-Free: 1-866-808-1555