Meet the Surgeons

Dr John Deperi

Dr. John DePeri Headshot

Dr. John DePeri is located in Jacksonville, Florida and his practice includes the full scope of general surgery.

He received his Doctor of Medicine from Columbia University, where he did his internship. He completed his residency at Baystate Medical Center. He is certified by the American Board of Surgery and is a Fellow with the American College of Surgeons. He is a member of the American Hernia Society.


Dr. G. Steven Webb

 Dr. G. Steven Webb Headshot

Dr. G. Steven Webb is located in Jacksonville, Florida and has specialized training in advanced laparoscopic and robotic surgical procedures.

He received his Doctor of Medicine from the University of Louisville and served his residency through the Jacksonville Health Education Program. He is certified by the American Board of Surgery and is a Fellow with the American College of Surgeons. He is a member of the American Hernia Society.


Dr. Hussain Abbas

Dr. Hussain Abbas Headshot

Dr Abbas is a board certified surgeon and fully trained in Minimally Invasive Surgery and in the designated MBSQIP center.

After his surgical residency at St. Mary’s, a Yale university affiliated hospital, Dr. Abbas completed a fellowship in Minimally Invasive Gastroesophageal and Bariatric surgery at the University of Florida, Gainesville. Dr Abbas’ expertise extends to a wide array of gastroesophageal disorders, anti-reflux surgery, complex hernia repairs, endocrine, oncology and bariatric procedures. In addition to his extensive training, Dr. Abbas has published several peer-reviewed articles. Dr. Abbas strives to provide complete surgical care to his patients. Dr Abbas adds many new state-of-the-art surgical techniques and procedures which ensures more satisfaction and faster and less painful recoveries for his patients.


Dr. George Reiss

Dr. George Reiss Headshot

Dr. George Reiss is located in Panama City, Florida and specializes in General Surgery.

Dr. Reiss received his Doctor of Medicine from the University of Texas Southwestern Medical School and served his residency at University of Texas Southwestern-Parkland Health and Hospital System.  He is certified by the American Board of Surgery and is a Fellow with the American College of Surgeons.  He is a member of the American Hernia Society.


Dr. Jonathan Yunis

Dr. Jonathan Yunis Headshot

Dr. Jonathan Yunis is located in Sarasota, Florida and specializes in General Surgery.

Dr. Yunis has a strong interest in revisional hernia surgery – repairing recurrent hernias and surgical eradication of chronic pain from hernia surgery.  Dr. Reiss received his Doctor of Medicine from the State University of New York, Syracuse and served his residency at SUNY – Stony Brook, School of Medicine.  He is certified by the American Board of Surgery and is a Fellow with the American College of Surgeons.  He is a member of the American Hernia Society.


Dr. Ernest Rehnke

Dr. Ernest Rehnke Headshot

Dr. Ernest Rehnke is located in St. Petersburg, Florida and practices General/Peripheral and Vascular Surgery.

He received his Doctor of Medicine from the St. George University School of Medicine in Grenada, West Indies. After completing medical school, he spent five years training in General Surgery at Methodist Hospital in New York. Following his training, Dr. Rehnke completed a one-year fellowship in Cardiovascular Surgery at the Texas Heart Institute in Houston. Dr. Rehnke is certified by the American Board of Surgery and is a Fellow with the American College of Surgeons. He is a member of the American Hernia Society.


Dr. Timothy Childers

Dr. Timothy Childers Headshot

Dr. Timothy Childers is located in Winter Park, Florida and specializes in General Surgery.

He received his Doctor of Medicine, as well as completed his medical residency, at the University of Florida College of Medicine.  Dr. Childers is certified by the American Board of Surgery and is a Fellow with the American College of Surgeons.  He is a member of the American Hernia Society.


Dr. Thomas Mahan

 Dr. Thomas Mahan Headshot

Dr. Thomas Mahan is located in Winter Park, Florida and specializes in General Surgery.

He received his Doctor of Medicine at the University of Maryland School of Medicine and served his Residency at the Louisiana State University Medical Center.  Dr. Mahan is certified by the American Board of Surgery and is a Fellow with the American College of Surgeons.  He is a member of the American Hernia Society.


Dr. Christopher Willkomm

Dr. Christopher Willkomm Headshot

Christopher M. Willkomm, MD is a Board-Certified general surgeon in Venice, FL. Dr. Willkomm graduated from USF Health Morsani College of Medicine in 2005.

He completed a residency at Baylor University Medical Center. He is trained in advanced laparoscopic surgery and has extensive training in trauma surgery. He practices at Surgical Associates of Venice and Englewood

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National Hernia Network is a network of hernia care doctors and specialists throughout Florida in Jacksonville, Winter Park, St. Petersburg, Bradenton, Panama City, and Sarasota.