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Mark R. Mainous, MD

Dr. Mark R. Mainous, MD

General Surgery
Willis-Knighton Physician Network

Office Locations



  • Medical School: University of Mississippi
  • Internship: LSUHSC Shreveport School of Medicine
  • Fellowship: LSUHSC Shreveport School of Medicine
  • Residency: LSUHSC Shreveport School of Medicine
  • Residency: University of Texas Medical Branch Hospitals
  • Fellowship: Johns Hopkins University Hospital

Board Certifications

  • American Board of Surgery: General Surgery

Insurance Accepted

Disclaimer: Not all physicians accept all insurance plans. Physicians move in and out of plans throughout the year. When you call for an appointment, confirm that the physician accepts your insurance.

AARP Medicare Supplemental Plans
Aetna Better Health of Louisiana
Aetna Coventry Advantra Louisiana
Aetna Coventry Medicare Dual Preferred
Aetna Medicare Freedom PPO
Amerihealth Caritas Louisiana
Beech Street (Multiplan)
Blue Cross/Blue Shield - PPO Preferred Care
Blue Cross/Blue Shield Federal Employees
Blue Cross/Blue Shield of Louisiana - HMO Louisiana
Blue Cross/Blue Shield OGB
Cigna HealthCare
Coventry Health Care (Aetna)
First Health
GEHA (Government Employees Health Association)
Health Plus of Louisiana
Humana Choice PPO
Humana Gold Plus HMO
Humana Gold Plus SNP Dual Eligible
IMA of Louisiana
Louisiana Healthcare Connections
Louisiana Medicaid
Louisiana Medicaid CHIP
Mail Handler's Benefit Plan (Aetna)
Medicare Railroad
Medicare Traditional Part B
Mutual of Omaha Supplemental Plans
Novasys Health
PHCS (Private Healthcare Systems / Multiplan)
PPO Plus
Tricare for Life
Tricare Prime
Tricare Select / Standard
UMR (United Healthcare)
United Healthcare
United Healthcare Community Plan - Medicaid
Workers Compensation
Healthy Blue

Conditions Treated

Lung Cancer
Liver Cancer
Partial Lung Collapse
Intestinal Abscess
Ductal Carcinoma in Situ
Incisional Hernia
Ulcerative Colitis
Anorectal Abscess
Capsular Contracture of Breast Implant
Varicose Veins
Inguinal Hernia
Inflammatory Bowel Disease
Benign Neoplasm of the Digestive System
Pleural Effusion
Thoracic Outlet Syndrome
Ventral Hernia
Barrett's Esophagus
Diaphragmatic and-or Hiatal Hernia
Soft Tissue Sarcoma
Intestinal Obstruction
Thyroid Nodule
Ruptured Aortic Aneurysm
Peripheral Vascular Disease (PAD, PVD)
Stomach and Small Intestine Cancer
Neuroendocrine Tumors
Meckel's Diverticulum
Colorectal Cancer
Hiatal Hernia
Anal Fissure
Anal and Rectal Cancer
Ischemic Colitis
Breast Cancer
Collapsed Lung (Pneumothorax)
Vascular Insufficiency of Intestines
Anal or Rectal Pain
Gastric Ulcer
Esophageal Diverticulum
Abdominal Pain
Gynecologic Cancer
Acute Bowel Infarction
Umbilical Hernia
Esophageal Cancer
Pyloric Stenosis
Small Intestine Cancer
Pelvic Abscess
Cholecystitis and Gallstones
Traumatic Brain Injury
Secondary Malignancies

Procedures Performed

Soft Tissue Tumor Removal
Esophagectomy (Esophagogastrostomy, Esophagojejunostomy)
Bunion Surgery
Abscess or Fluid Incision and Drainage
Gallbladder Removal (Cholecystectomy), Laparoscopic
Port Placements or Replacements
Excision, Shaving, or Destruction of Skin and Subcutaneous Tissue (incl. Mohs Micrographic Surgery), Tissue Transfer
Lymph Node Biopsy or Excision
Hemorrhoidectomy or Excision of Anal Tags
Femoral Hernia Repair, Open
Open Gastric Restrictive Procedure
Excision of Bile Duct Tumor
Axillary Lymph Node Dissection
Excision of Esophageal Lesion
Open Incisional and-or Ventral Hernia Repair
Gastric Bypass Surgery, Open
Gallbladder Removal
Abscess or Cyst Drainage or Aspiration
Duodenal Polypectomy
Gallbladder Removal (Cholecystectomy), Open
Excision of Rectal Tumor
Intestinal Transplant (incl. Enterectomy)
Inguinal Hernia Repair, Open
Umbilical or Ventral Hernia Repair, Laparoscopic
Thyroidectomy or Thyroid Lobectomy
Appendectomy, Laparoscopic
Arteriovenous Shunt Creation
Wound Repair
Bile Duct Procedure
Dressing and-or Debridement of Wound, Infection, or Burn (incl. Negative Pressure Wound Therapy)
Arteriovenostomy for Renal Dialysis
Pancreatectomy (incl. Pancreas Transplant and Whipple Procedure)
Hernia Repair
Peripheral Artery Catheterization
Appendectomy, Open
Splenectomy and Splenorrhaphy
Enterostomy (Laparoscopic or Open)
Inguinal Hernia Repair, Laparoscopic
Open Diaphragmatic and-or Paraesophageal Hiatal Hernia Repair
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Excision of Stomach Tumor
Incisional Hernia Repair, Laparoscopic
Excision of Breast Tumor
Thyroid Lobectomy
Tracheal Surgery
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