Portrait of William C. Chapman, Jr., MD, MPHS

William C. Chapman, Jr., MD, MPHS

Assistant Professor
Section of Colon and Rectal Surgery
Division of General Surgery

Specialties

  • Anal cancer 
  • Carcinomatosis 
  • Colon cancer 
  • Colon polyps 
  • Rectal cancer 
  • Constipation 
  • Crohn’s disease 
  • Diverticulitis 
  • Fecal incontinence 
  • Fissures 
  • Hemorrhoids 
  • Peritoneal surface disease 
  • Pelvic floor disorders 
  • Pilonidal cysts 
  • Rectal prolapse 
  • Ulcerative colitis 

Call for patient appointments: 314-454-7177


Meet Dr. Chapman 

Dr. William Chapman Jr., MD, MPHS is a colon and rectal surgeon specializing in comprehensive colon and rectal surgical care. 

He has expertise in treating a variety of cancers of the colon and rectum, diverticulitis, fissures, and ulcerative colitis. 

Dr. Chapman earned his medical degree from Georgetown University School of Medicine. He completed general surgery training at WashU Medicine and a colorectal surgery fellowship at Cleveland Clinic Foundation.  


Degrees

Medical Degree 
Georgetown University School of Medicine, Washington, D.C. 
2015 

Residency

General Surgery Residency 
WashU Medicine, St. Louis, MO 
2022 

Fellowship

Colorectal Surgery Fellowship 
Cleveland Clinic Foundation, Cleveland, OH 
2023 


Research interests

Rectal cancer
Colon cancer
Patient reported outcomes in colorectal surgery 


Locations

Siteman Cancer Center – South County
5225 Midamerica Plaza
St. Louis, MO 63129
Phone: 314-454-7177

Barnes-Jewish West County Hospital
Medical Building 4 
1044 North Mason Road 
Suite 310 
St. Louis, MO 63141 
Fax: 888-425-7946 
Appointments: 314-454-7177

Hospital affiliations

Barnes-Jewish Hospital 

Siteman Cancer Center 


Board certifications

  • Surgery 

Dr. Chapman in the news

More information

Professional Memberships:

  • American Society of Colon and Rectal Surgeons 
  • Reviewer, Diseases of Colon and Rectum 
  • Reviewer, Surgery 

Awards and Honors: 

  • 2018 – Wells Resident Research Award, Washington University School of Medicine 
  • 2016 – Resident Research Presentation Award, Vascular Access Society of America 
  • 2015 – Alpha Omega Alpha, Georgetown University School of Medicine 
  • 2015 – Gold Humanism Honor Society, Georgetown University School of Medicine 
  • 2008 – Phi Beta Kappa, University of North Carolina 
  • 2002 – Eagle Scout, Boy Scouts of America