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Edit this profileListed in the NPI registry as a nurse practitioner — acute care, Jack Greiner practices in Nutley, NJ. NPI 1972320125 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.
340 KINGSLAND ST
Nutley, NJ 07110
Jack Greiner is a nurse practitioner in Nutley, NJ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Acute Care”.
NPI registry
Jack Greiner is listed at 340 Kingsland St, Nutley, NJ 07110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (973) 761-9306. Contact the office directly to confirm availability and scheduling.
NPI registry
Jack Greiner's National Provider Identifier is 1972320125. 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
Jack Greiner attended Other, graduating in 2025. This comes from the CMS National Downloadable File.
CMS public data
Jack Greiner has 1 year experience. Calculated from a graduation year of 2025, reported in the CMS National Downloadable File.
CMS public data
Not yet. This profile is built from public federal data and has not been confirmed by Jack Greiner. If this is you, claiming it is free.
Guide.md
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