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35 years of experience
Accepting new patients
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 (3)

The overall average patient rating of Dr. Robert Gershan is Excellent. Dr. Gershan has been reviewed by 4 patients who have provided 3 comments. The rating is 3.5 out of 4 stars.

Patient Ratings
Ease of Appointment 3.5
Promptness 2.8
Courteous Staff 3.0
Accurate Diagnosis 2.5
Bedside Manner 3.0
Spends Time with Me 3.3
Follows Up After Visit 3.3

Specialties & Research

Dr. Robert Gershan, MD is board certified in Internal Medicine.

  • He has special expertise in 3 areas:
  • Diabetes
  • Diabetes Complications
  • Flu (Human Influenza)

Education & Awards

Dr. Gershan graduated from University of Wisconsin at Madison.


Dr. Gershan has 4 hospital affiliations:

  • Froedtert Hospital 
  • Community Memorial Hospital of Menomonee Falls WI 


  • English

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Additional Information
Dr. Robert Nathan Gershan MD is a male Internist, has 35 years of experience and practices in Internal Medicine.
Where does Dr. Robert N. Gershan practice?
Dr. Robert Gershan has 3 office locations.
Dr. Robert Gershan practices Internal Medicine near Menomonee Falls, WI.
Additional practice locations include: West Bend, WI.
See Menomonee Falls Internists.