> > > > Dr. William Zimmer, MD
Dr. William Roger Zimmer MD is a male Internist, has 36 years of experience and practices in Internal Medicine and Medical Oncology.
Video profile
Dr. William Zimmer has 4 office locations.
Springfield Lake Shore Improvement
38 Westwood Ln
Springfield, IL 62711

Phone Number
Locations and availability (4)
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).

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  1. Qualifications
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Patient Reviews

  • Currently 4 of 4 stars
Patient comments (0)

The overall average patient rating of Dr. William Zimmer is Excellent. Dr. Zimmer has been reviewed by 1 patients who have provided 0 comments. The rating is 4 out of 4 stars.

Specialties & Research

Dr. William Zimmer, MD is board certified in Internal Medicine and Medical Oncology.

Education & Awards

Dr. Zimmer graduated from University of Nebraska, Omaha.


Dr. Zimmer has 4 hospital affiliations:

  • Passavant Area Hospital 
  • Memorial Medical Center 

Accepted Insurance Plans

Dr. Zimmer accepts these health insurances in at least one office:

  • United Healthcare - 16 plans
  • Unicare - 2 plans
  • Cigna - 4 plans
  • USA H & W Network - 1 plan

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Additional Information
Where does Dr. William R. Zimmer practice?
Dr. William Zimmer practices Internal Medicine and Medical Oncology near Springfield, IL.
Additional practice locations include: Freeport, IL.
See Springfield Internists and Springfield Oncologists.