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Mark O'Brien, D.O
NPI 1265532212 · on the registry since 2006
Practice
- Address
- 6507 E State Blvd
Fort Wayne, IN 46815 - Phone
- (260) 486-3300
- Fax
- (260) 486-3600
- Clinicians at this address
- 8
Registry record
- Primary taxonomy
- 208000000X
208000000X
- Licence states on file
- IN
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2025-04-14
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 Indiana