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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (6)

The overall average patient rating of Dr. William Fritz is Excellent. Dr. Fritz has been reviewed by 17 patients who have provided 6 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.3
Promptness 3.7
Courteous Staff 4.3
Accurate Diagnosis 4.0
Bedside Manner 4.0
Spends Time with Me 4.3
Follows Up After Visit 4.0

Specialties & Research

Dr. William Fritz, MD is board certified in Internal Medicine.

  • He has special expertise in 2 areas:
  • Flu (Human Influenza)
  • Rheumatology

Education & Awards

Dr. Fritz graduated from The University of Texas at Houston. He has 2 awards.

Patients' Choice Award (2009, 2011 - 2012, 2014)
Compassionate Doctor Recognition (2012)


Dr. Fritz has 3 hospital affiliations:

  • St Johns Mercy Hospital 
  • Saint Louis University Hospital 
  • Mercy Hospital - Washington, MO 


  • Spanish

> > > > Dr. William Fritz, MD

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Additional Information
Dr. William Howard Fritz MD is a male Internist, has 24 years of experience and practices in Internal Medicine.
Where does Dr. William H. Fritz practice?
Dr. William Fritz has 2 office locations.
Dr. William Fritz practices Internal Medicine near Washington, MO.
Additional practice locations include: Saint Louis, MO.
See Washington Internists.