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  • Gastroenterology, Internal Medicine
  • Accepting new patients
  • 41 years of experience
  • Mcfarland Clinic Pc 1215 Duff Ave, Ames, IA 50010
  • (515) 239-4400

Brief Intro

Dr. Johnson graduated from the University of Illinois At Chicago College of Medicine in 1984. He works in Ames, IA and 1 other location and specializes in Gastroenterology and Internal Medicine. Dr. Johnson is affiliated with Mary Greeley Medical Center.

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Education Background

RESIDENCY

Loyola University Medical Center

MEDICAL SCHOOL

University Of Illinois At Chicago College Of Medicine - 1984

Languages Spoken

  • English

Location & Hours

  • Mcfarland Clinic PC
  • 1215 Duff Ave, Ames, IA 50010
  • Mon:8:00 am - 5:00 pm
    Tue:8:00 am - 5:00 pm
    Wed:8:00 am - 5:00 pm
    Thu:8:00 am - 5:00 pm
    Fri:8:00 am - 5:00 pm
    Sat:Closed
    Sun:Closed

Specialties Treated

  • Gastroenterology
  • Internal Medicine

Conditions Addressed

  • Chronic Pancreatitis
  • Malignant Neoplasm of Colon
  • Anal Fissure
  • Peptic Ulcer Disease
  • Cirrhosis
  • Liver Cancer
  • Celiac Disease
  • Intestinal Obstruction
  • Benign Polyps of the Colon
  • Acute Pancreatitis
  • Cholelethiasis or Cholecystitis
  • Diverticulitis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Hemorrhage
  • Infectious Liver Disease
  • Constipation
  • Irritable Bowel Syndrome (IBS)
  • Inflammatory Bowel Disease (IBD)
  • Esophagitis
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Procedures Performed

  • Liver Biopsy
  • Colonoscopy
  • Proctosigmoidoscopy
  • Liver Biopsy
  • Sigmoidoscopy
  • Esophageal Dilatation
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Insurance Accepted

* Insurance information may change frequently. Please verify directly with the provider (doctor/clinic).

  • Humana
  • Meridian Health Plan
  • Golden Rule
  • GEHA
  • Medicare
  • Medica
  • Molina Healthcare
  • HealthScope Benefits
  • CHAMPVA
  • APWU
  • Banner Health
  • STLDentalPlan| LLC
  • UnitedHealthOne
  • UnitedHealthcare
  • Meritain Health
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  • Cancer 6
  • Cardiology, Heart & Vascular Surgery 8
  • Orthopedics 17
  • Neurology & Neurosurgery 13
  • Gastroenterology & GI Surgery 15
  • Pulmonology & Lung Surgery 15
  • Diabetes & Endocrinology 4
  • Children's Hospital 2
  • Urology 13
  • Psychiatry 15
  • Geriatrics 15
  • Rehabilitation 16
  • Obsterics & Gynecology 2
  • Ophthalmology 1
  • Ear, Nose & Throat 1
  • Rheumatology 1
  • Long Term Care 2
  • Maternity Care (Uncomplicated Pregnancy) 8