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John Oneil, M.D
NPI 1952573826 · on the registry since 2008 · sole proprietor
Practice
- Address
- 3076 Myrtledale Rd
Calistoga, CA 94515 - Phone
- (707) 942-6888
- Organisation at this address
- Duffy'S Myrtledale, Inc.
Duffy'S Napa Valley Rehab, LlcInferred from a shared address, not stated in the registry. - Clinicians at this address
- 4
Registry record
- Primary taxonomy
- General Practice Physician
208D00000X
- Licence states on file
- CA
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2026-07-02
- Status
- Not present in the most recent federal file
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