Mercy Clinics

General Surgery

Mercy General and Bariatric Surgery
540 E. Jefferson St. Ste. 205
Iowa City, Iowa 52245
Phone 319-688-7880
Fax 319-688-7881
Monday through Friday
8:30 a.m. - 4:30 p.m.

In-person and telehealth appointments



Rhys M. Kavanagh, MD              
Dr. Kavanagh is our bariatric surgeon. He received his medical education from Dalhouise University, completed his residency at Dalhouise University, completed a fellowship at University of Iowa Hospital and Clinics and is certified by The Royal College of Physicians & Surgeons of Canada. Learn more about Mercy's Metabolic and Bariatric Surgery Program.

Paul Pierson, DO              
Dr. Pierson received his medical education from Des Moines University College of Osteopathic Medicine & Surgery and completed his residency at MercyOne Des Moines Medical Center.

Brooke Walls, PA-C              
Brooke received her medical education from Midwestern University and is certified by NCCPA (National Commission on Certification of Physician Assistants.

Specialized Expertise in:
  • Abscess
  • Anal fissure (tear)
  • Appendectomy
  • Breast surgery
  • Feeding tube placement into stomach/intestine
  • Fistulae
  • Gallbladder
  • Hernias
  • Infusion ports for chemotherapy
  • Pancreas
  • Skin and soft tissue
  • Small and large intestine
  • Stomach
  • Thyroid and parathyroid
  • Vein care
    Treatments and Procedures:

*Minimally invasive, robotic inguinal and robotic hernia repairs 

  • Abdominal wall (incisional hernia)
  • Abscess anoscopy
  • Breast lumpectomy
  • Cholecystectomy (gallbladder - minimally invasive)
  • Colectomy
  • Colonoscopy
  • Colostomy
  • Hemorrhoid banding
  • Hemorrhoidectomy
  • Hernia repair (abdominal, hiatal, inguinal, femoral, and umbilical)
  • Liver biopsy
  • Lymph node removal
  • Mastectomy
  • Minimally invasive (laparoscopic and robotic)
  • Needle biopsy
  • Open surgery
  • Pediatric hernia repair (> 6 months)
  • Pilonidal cyst
  • Prevention education
  • Proctosigmoidoscopy
  • Ultrasound upper endoscopy