Brianna Williams, MD

Dr. Brianna Williams is a board-certified general surgeon with advanced expertise in minimally invasive surgery and complex rectal cancer management. She is dedicated to delivering comprehensive, evidence- based surgical care, emphasizing technical precision, thoughtful communication, and individualized treatment planning.

Dr. Williams received her medical degree from the University of California, Irvine School of Medicine. She completed her General Surgery residency at Riverside Community Hospital, where she gained an extensive foundation in both elective and acute care surgery. She subsequently pursued fellowship training in Minimally Invasive Surgery and Advanced Rectal Cancer Management at Lankenau Medical Center in Wynnewood, Pennsylvania. She trained under Dr. John Marks, a globally recognized leader in robotic and sphincter-preserving surgery for low rectal cancer, further advancing her expertise in complex colorectal and oncologic procedures. Her practice encompasses a wide spectrum of benign and malignant disease, including colon and rectal cancer, diverticulitis, inflammatory bowel disease, and anorectal disorders. She performs minimally invasive colectomy and proctectomy, low anterior resection, abdominoperineal resection, transanal excision of rectal lesions, ostomy creation and reversal. She works closely with a multidisciplinary team to ensure coordinated, patient-centered oncologic care.

In addition to her colorectal specialization, Dr. Williams provides comprehensive general surgical services, including cholecystectomy, appendectomy, inguinal and ventral hernia repair, small bowel resection, lysis of adhesions, management of bowel obstruction, and excision of soft tissue and abdominal wall masses. She offers both elective and urgent surgical care, utilizing minimally invasive techniques whenever appropriate to support optimal recovery and outcomes.

Dr. Williams is committed to advancing surgical excellence while maintaining a compassionate, collaborative approach that prioritizes patient education, safety, and long-term quality of life.

Board Certifications
American Board of Surgery – General Surgery

Medical Education
University of California, Irvine School of Medicine

Residency Training
Riverside Community Hospital – General Surgery

Fellowship Training
Lankenau Medical Center, Wynnewood, Pennsylvania – Minimally Invasive Surgery and Advanced Rectal Cancer Management

Office Locations
Moreno Valley – Ph: (951) 788-4490 | 12980 Frederick St., Ste. J, Moreno Valley, CA 92553
Riverside – Ph: (951) 520-9392 | 4244 Riverwalk Pkwy., Ste. 290, Riverside, CA 92505
Riverside – Ph: (951) 788-4490 | 6958 Brockton Ave Ste. 202, Riverside, CA 92506