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).

Learn more about Dr. Mark Patterson:

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Specialties & Research

Dr. Mark Patterson, MD is board certified in Internal Medicine.

Education & Awards

Dr. Patterson graduated from University of Wisconsin at Madison.


Dr. Patterson has 2 hospital affiliations:

  • Gundersen Lutheran Medical Center 
  • Gundersen Lutheran - Sparta Clinic 

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Additional Information
Dr. Mark John Patterson MD is a male Internist, has 21 years of experience and practices in Internal Medicine.
Where does Dr. Mark J. Patterson practice?
Dr. Mark Patterson has 8 office locations.
Dr. Mark Patterson practices Internal Medicine near Sparta, WI.
Additional practice locations include: La Crosse, WI and Onalaska, WI.
See Sparta Internists.