Mary Dillhoff

Mary Dillhoff, MD

  • Surgical Oncology
  • General Surgery

Appointments: (614) 293-7171

About Me

I’m a surgical oncologist with a specialty in diagnosing and treating patients with tumors of the liver, bile duct, pancreas and stomach. Care here at the OSUCCC – James starts with an evaluation by our multidisciplinary team to determine the best therapy, targeted treatments and possible clinical trials that may benefit the patient. I was rated in the top 10 percent of physicians in the nation for patient satisfaction in 2016.

I use robotic surgery and minimally invasive techniques as often as possible to improve recovery time for the patient. Presently I'm working to develop our robotic gastric surgery program. Additionally I serve as an assistant professor of internal medicine at The Ohio State University College of Medicine.

My passion is to help patients through their illness by giving them the very best clinical care, while also researching these diseases to better treat or prevent them in the future. I’m currently investigating circulating tumor DNA in patients with pancreatic cancer and cystic lesions of the pancreas. We’re also evaluating adjuvant systemic therapies in metastatic pancreatic neuroendocrine tumors.

It’s a privilege to be affiliated with The James. Working with this world-class team allows me to give patients the very best care. Because of our status as a National Cancer Institute (NCI)-Designated Comprehensive Cancer Center, we’re able to enroll patients in clinical trials and offer them the most advanced therapies. It’s gratifying to know we’ve helped a cancer patient through a big part of their treatment. It’s also an honor to be there in their time of need.


  • Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2016, 2017

Specialties and conditions I treat

  • Surgical Oncology
  • General Surgery
  • Gastrointestinal Cancers
  • Liver Cancers
  • Neuroendocrine Tumors
  • Pancreatic Cyst
  • Carcinoma, Pancreatic Ductal

Locations where I practice

Please note: Not all physicians schedule patients at each listed location. Please call the “Schedule an appointment” number shown above for scheduling assistance.

Education and training

Medical Degree

University of Cincinnati


General Surgery
Ohio State University Wexner Medical Center
7/1/2006 - 6/30/2012

More about my work

My background


Surgical Oncology
Memorial Sloan-Kettering Cancer Center
7/1/2012 - 6/30/2014

Board Certification

American Board of Surgery

My Department


My Division

Surgical Oncology

Consulting and Related Relationships

At The Ohio State University Wexner Medical Center, we support a faculty member’s research and consulting in collaboration with medical device, research and/or drug companies because a faculty member’s expertise can guide important advancements in the practice of medicine and improve patient care. In order to provide effective management of these relationships, the University requires annual disclosures from all faculty members with external interests related to their University responsibilities.

As of 03/28/2017, Dr. Dillhoff has reported no financial relationships with medical device, research and/or drug companies.