Physician Profile
Based in Oakland, CA, Claire K. Horton, MD is listed in the NPI registry under internal medicine. NPI 1649374109 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
3451 E 12TH STREET
Oakland, CA 94601
Dr. Horton is an internist in Oakland, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Dr. Horton is listed at 3451 E 12Th Street, Oakland, CA 94601. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (510) 535-3500. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Horton's National Provider Identifier is 1649374109. 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
Dr. Horton has 20+ years experience. Registered with an NPI since 2006. 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 Dr. Horton. If this is you, claiming it is free.
Guide.md
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