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).
  Nicole A. Alsakar, ARNP              
Nicole received her post graduate education from Allen College and is certified by the American Nurses Credentialing Center.

Specialized Expertise in:
  • Abscess
  • Anal fissure (tear)
  • Appendectomy
  • Breast surgery
  • Feeding tube placement into stomach/intestine
  • Fistulae
  • Gallbladder
  • Hernias
  • Infusion ports for chemotherapy
  • Pancreas
  • Robotic surgery
  • 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
  • Robotic surgery
  • Ultrasound upper endoscopy