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Physician Directory

Dr. William M. Ehrhardt, MD


  • (608) 260-3405

Dr. Ehrhardt's Overview

Dr. William M. Ehrhardt graduated from the University of Wisconsin Medical School in 1999. He works in Madison, WI and 1 other location and specializes in Gastroenterology. Dr. Ehrhardt is affiliated with Saint Clare Hospital & Health Services and Saint Marys Hospital. He speaks English and Spanish.

Gender: Male

Languages Spoken: English, Spanish

Dr. Ehrhardt's Experience

Years in Practice: 16

Conditions Treated by Dr. Ehrhardt

  • Inflammatory bowel disease (IBD)
  • Benign polyps of the colon
  • Constipation
  • Diverticulosis
  • Gastritis and duodenitis
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Procedures Performed by Dr. Ehrhardt

  • Colonoscopy, flexible
  • Endoscopic retrograde cholangiopancreatography (ERCP)
  • Endoscopy, upper gastrointestinal (UGI)
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Dr. Ehrhardt's Specialties


Dr. Ehrhardt's Education & Training

Medical School: University of Wisconsin Medical School; Graduated 1999

Dr. Ehrhardt's Accepted Insurance

  • Aetna Choice POS II
  • Aetna Signature Administrators PPO
  • Multiplan PPO
  • UHC Options PPO
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Dr. Ehrhardt's Office Information & Appointments

Office Locations

*This physician has multiple office locations. See Office Information for details.

Other Physicians in Dr. Ehrhardt's Practice

Dr. Ehrhardt's Hospital Affiliations

Office Locations