Physician Profile
Isaac S. Horowitz, DO practices pediatrics in Madera, CA. The provider's National Provider Identifier (NPI) is 1982167375.
Factual summary compiled by Guide.md from public records; not written by this provider.
Licence standing is from the California Department of Consumer Affairs public licensee file, read on Sep 26, 2026. The board is the record of authority; check it there before relying on it.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
344 E 6TH ST
Madera, CA 93638
Dr. Horowitz is a pediatrician in Madera, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pediatrics”.
NPI registry
Dr. Horowitz is listed at 344 E 6Th St, Madera, CA 93638. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (559) 871-5844. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Horowitz's National Provider Identifier is 1982167375. 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. Horowitz has 7+ years experience. Registered with an NPI since 2019. 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. Horowitz. If this is you, claiming it is free.
Guide.md
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