General Surgery


General Surgery, despite its name, is a surgical specialty that focuses on the human torso, which includes abdominal organs, intestines, esophagus, stomach, small bowel, colon, liver, pancreas, gallbladder and bile ducts.

John Mihran Davis, M.D., F.A.C.S.


A recognized leader in surgical innovation committed to the highest level of patient care.

Specialities — Hernia and General Surgery

  • • Academic Chair of Surgery
  • • Surgery Program Director
  • • Director of Medical Education
  • • Palisades Medical Center
  • • Hackensack Meridian Health

Dr. Davis received his undergraduate from Columbia College in New York and his medical degree from Wayne State University School of Medicine in Detroit. He did his training at New York-Presbyterian Weill Cornell Medical Center, following which he served did a fellowship at The National Institutes of Health in the Institute of Allergy and Infectious Diseases. He returned to Cornell as a member of the faculty for 20 years.

After leaving Cornell, Dr. Davis joined the faculty of Robert Wood Johnson Medical School, where he served as the academic liaison at Jersey Shore Medical University Medical Center, which is now part of Hackensack Meridian Health, and currently is an emeritus member of the JSUMC faculty.

At Cornell, Dr. Davis worked with and trained under the pioneering surgeon, Dr. George Wantz, who was instrumental in bringing many of the modern approaches to hernia surgery to the United States. These principles serve as the foundation to hernia surgery today.

Dr. Davis is a Diplomat of the American Board of Surgery and a Fellow of the American College of Surgeons. He has published or presented over 200 papers, books or monographs on a variety of topics in general surgery.

Ayolola O. Onayemi, M.D., M.P.H.


Specialities — General and Colorectal Surgery

Dr. Onayemi obtained her undergraduate degree from the University of Massachusetts (Boston campus) with a Bachelor of Science in Biochemistry summa cum laude. She received her medical degree from the University of Connecticut Medical School.

She obtained a Master’s in Public Health Policy from the Dartmouth Medical School. She completed her general surgery residency at Grand Strand Medical Center as Administrative Chief Resident in South Carolina where she worked with Dr. Davis. She took a fellowship year at Anne Arundel Medical Center, where she honed her general surgical and laparoscopic skills.

Dr. Onayemi believes in a holistic approach to her patients, catering care to each person’s unique social and personal background for their overall wellbeing. Her background in public health gives her a unique perspective in this method.

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