Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
ROBERT R MCWILLIAMS, M.D.
ActiveROBERT R MCWILLIAMS, M.D. is a Medical Oncology healthcare provider located in PEORIA, Illinois. NPI 1487633962 is currently active in the NPPES registry. Verify at CMS.
Medical Oncology · PEORIA, IL
Registration Details
- NPI Number
- 1487633962
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Jan 12, 2006 (20.623496876553 yrs)
- Last Updated
- Feb 25, 2026
- Licenses
-
036131628 (IL)44014 (MN)44014 (MN)036131628 (IL)
Practice Information
- Address
-
530 NE GLEN OAK AVEPEORIA, IL, 616370001Browse IL providers · Browse ZIP 61637
- Phone
- 3096552000
- Primary Specialty
-
Medical Oncology
207RX0202X
- Additional Specialty
- Hematology
- Additional Specialty
- Medical Oncology
- Additional Specialty
- Medical Oncology
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.