William R. Zimmer, MD
Hematology & Oncology Physician · Oncologist in Springfield, IL
Provider details
- Specialty
- Hematology & Oncology Physician
- Credentials
- MD
- NPI number
- 1275575821
Checked against the CMS National Provider Identifier registry on October 2, 2026.
About
Specialties
- Oncology
- Internal Medicine
Insurance
- Blue Cross and Blue Shield - BlueCard PPO
- Blue Cross and Blue Shield PPO
- Cigna - Open Access
- Cigna HMO
- Cigna PPO
- Coventry
- First Health PPO
- Great West Healthcare PPO
- PacifiCare
- United HealthCare
- WellPoint
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