General Surgery Expert Witnesses in Mississippi

General Surgery - Advanced laparoscopic surgery, gastrointestinal surgery, breast surgery, inguinal, ventral and umbilical hernia surgery, colon and rectal surgery, biliary surgery, venous access surgery, soft tissue tumors, thyroid and parathyroid surgeries

Forty years experience as active clinical general surgeon in private practice and with Kaiser Permanente. Retired partner physician with Kaiser Permanente and past Assistant Clinical Professor of Surgery, UCLA. Board certified with American Board of Surgery, fellow of The American College of Surgeons. I have performed over fifteen thousand major general surgery cases, involving all aspects of general surgery. My responsibilities have included active instruction of UCLA general surgery residents during my time at Kaiser Permanente and of Cedars-Sinai general surgery residents during my time in private practice. I will provide objective, non biased expert witness reports and testimony, supported by substantial medical evidence.

General Surgery, Critical Care Surgery - Minimally Invasive Surgery, Laparoscopic Surgery, Gastro-intestinal Surgery, Hernia Surgery, Gall Bladder / Cholecystectomy, Colon Surgery, Colon Cancer, Colon Polyps, Diverticulitis, Appendix / Appendectomy, Hemorrhoids, Surgical Infections, Colonoscopy, EGD

Board-certified in general surgery and surgical critical care. Active clinical practice with 30+ years of experience. Clinical Assistant Professor. Fellowship-trained endoscopist, Massachusetts General Hospital-Harvard Medical School affiliation. Fellowship trained trauma and surgical critical care, MIEMSS. Fellow of American College of Surgeons. Experience as risk retention group claims committee chairman, hospital quality, safety and credentials committee member and state board reviewer of standards of care. Retired Major, US Army reserve medical corps and volunteer mission surgeon.

Natchez, Mississippi

General Surgery, Trauma Surgery - robotic-assisted, robotic surgery, trauma, robotic assist

Dr. Geoffrey James Flattmann is a board-certified general surgeon with over 25 years of clinical experience and more than 25,000 surgical procedures performed. Based in Natchez, Mississippi, Dr. Flattmann has maintained a solo private surgical practice since 2000, serving as a trusted provider of comprehensive general surgical care, including both open and minimally invasive procedures. Dr. Flattmann is a nationally recognized leader in robotic-assisted surgery and serves as a Robotic Surgery Proctor and Featured Speaker for Intuitive Surgical. As of May 2025, he has performed over 1,400 robotic cases. His deep experience spans a wide range of general surgical procedures, including gastrointestinal surgery, hernia repair, gallbladder and biliary tract procedures, appendectomy, and surgical oncology. In addition to his clinical practice, Dr. Flattmann has served in multiple hospital leadership roles, including Chief of Surgery at Merit Health Natchez (current), Chief of Staff durin...

Ridgeland, Mississippi

General Surgery, Surgical Oncology - surgical oncology, hepatobiliary surgery, abdominal surgery, dermatological surgery, acute care surgery, breast surgery, colon surgery, rectal surgery, gallbladder surgery, small bowel surgery, appendix surgery, sarcoma, melanoma, stomach, gastric, robotic surgery, appendicitis, cancer, skin cancer

General Surgery- University of Tennessee Health Science Center- Memphis, TN Complex Surgical Oncology Fellowship- MD Anderson Cancer Center, Houston, Tx Division Chief, Surgical Oncology at the University of Mississippi Medical Center- Jackson, MS Associate Professor of Surgery at the University of Mississippi Medical Center- Jackson, MS Staff General Surgeon at Southwest Mississippi Medical Center- McComb, MS Staff General Surgeon at Merit Health Systems- Madison, MS Associate Program Director for General Surgery at the University of Mississippi Medical Center- Jackson, MS State Chair, American College of Surgeons Committee on Cancer, Mississippi Chairman, Clinical Cancer Committee at the University of Mississippi Medical Center- Jackson, MS Chair, Gastrointestinal Tumor Board at the University of Mississippi Medical Center- Jackson, MS