Provider Profile
John Marrero, RN
Unclaimed ProfileAbout John Marrero
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (516) 325-8735
- Email not available
Practice Locations
20 WESTON LN
Smithtown, NY 11787
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other neurology / psychiatry specialists in Smithtown 1
Same specialty, same city.
Common questions
What kind of doctor is John Marrero?
John Marrero is a neurology / psychiatry in Smithtown, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is John Marrero's address?
John Marrero is listed at 20 Weston Ln, Smithtown, NY 11787. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John Marrero?
The number on file is (516) 325-8735. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for John Marrero?
John Marrero's National Provider Identifier is 1174300115. 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 John Marrero have?
John Marrero has 3+ years experience. Registered with an NPI since 2023. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Is John Marrero's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John Marrero. 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.