Provider Profile
Diana Oneill, FNP
Unclaimed ProfileAbout Diana Oneill
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Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (929) 210-6550
- Email not available
Practice Locations
1436 BROADWAY
Hewlett, NY 11557
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 nurse practitioners at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 6 related providers in 1 group
Common questions
What is Diana Oneill's specialty?
Diana Oneill is a nurse practitioner in Hewlett, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Family”.
NPI registry
Where can I find Diana Oneill?
Diana Oneill is listed at 1436 Broadway, Hewlett, NY 11557. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Diana Oneill?
The number on file is (929) 210-6550. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Diana Oneill's NPI number?
Diana Oneill's National Provider Identifier is 1427109990. 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 long has Diana Oneill been practicing?
Diana Oneill 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
Has Diana Oneill confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Diana Oneill. 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.