Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
GREGORY S WILLIS, M.D.
ActiveGREGORY S WILLIS, M.D. is a Radiation Oncology healthcare provider located in TUALATIN, Oregon. NPI 1417941600 is currently active in the NPPES registry. Verify at CMS.
Radiation Oncology · TUALATIN, OR
Registration Details
- NPI Number
- 1417941600
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Sep 2, 2005 (20.992142887709 yrs)
- Last Updated
- Jul 31, 2025
- Licenses
-
MD2016-0015 (NM)MD28019 (OR)MD28019 (OR)
Practice Information
- Address
-
6489 SW BORLAND RDTUALATIN, OR, 970629798Browse OR providers · Browse ZIP 97062
- Phone
- 5036924843
- Fax
- 5036926543
- Primary Specialty
-
Radiation Oncology
2085R0001X
- Additional Specialty
- 2471R0002X
- Additional Specialty
- Radiation 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.