Search › California › 101YM0800X
Ronald Grein
NPI 1497606834 · on the registry since 2026
Practice
- Address
- 1401 Mallard Ln
Oakley, CA 94561 - Phone
- (253) 625-0976
Registry record
- Primary taxonomy
- 101YM0800X
101YM0800X
- Licence states on file
- CA
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2026-02-03
Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California