Physician Profile

Ronald E. Williams, MD

Unclaimed Profile

About Dr. Williams

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Specialty

Pediatric Neonatal-Perinatal Medicine (Primary)

Credentials & Licensing

CA licenseG37615
NPI1740357979
NPI issued11/30/2006

Source: NPPES NPI Registry

Common questions

What does Dr. Williams specialize in?

Dr. Williams is a pediatric neonatal in Fontana, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pediatric Neonatal-Perinatal Medicine”.

NPI registry

Where is Dr. Williams located?

Dr. Williams is listed at 9961 Sierra Ave, Fontana, CA 92335. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Williams's phone number?

The number on file is (909) 427-3910. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Dr. Williams?

Dr. Williams's National Provider Identifier is 1740357979. 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

How much experience does Dr. Williams have?

Dr. Williams 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

Is Dr. Williams's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Williams. If this is you, claiming it is free.

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.