Physician Profile
Ronald O'Halloran, M.D. is a healthcare provider in Ventura, CA specializing in pathology. This provider record is associated with NPI 1841357647.
Factual summary compiled by Guide.md from public records; not written by this provider.
3291 LOMA VISTA RD
Ventura, CA 93003
Ronald O'Halloran is a pathologist in Ventura, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pathology”.
NPI registry
Ronald O'Halloran is listed at 3291 Loma Vista Rd, Ventura, CA 93003. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (805) 652-6556. Contact the office directly to confirm availability and scheduling.
NPI registry
Ronald O'Halloran's National Provider Identifier is 1841357647. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Ronald O'Halloran has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Not yet. This profile is built from public federal data and has not been confirmed by Ronald O'Halloran. If this is you, claiming it is free.
Guide.md
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