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Provider Profile

Jack Greiner

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At a glance

About Jack Greiner

Listed 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.

Education & Training

School Other Graduated: 2025

Specialty

Credentials & Licensing

NJ licenceAs reported to the NPI registry
No. 26NJ15141400As reported
NPINational Provider Identifier
1972320125Issued 2024

As reported to the NPI registry ↗

Medicare information

Accepts Medicare assignmentYes
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What kind of doctor is Jack Greiner?

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

What is Jack Greiner's address?

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

How can I make an appointment with Jack Greiner?

The number on file is (973) 761-9306. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Jack Greiner?

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

Where did Jack Greiner train?

Jack Greiner attended Other, graduating in 2025. This comes from the CMS National Downloadable File.

CMS public data

How much experience does Jack Greiner have?

Jack Greiner has 1 year experience. Calculated from a graduation year of 2025, reported in the CMS National Downloadable File.

CMS public data

Is Jack Greiner's profile verified?

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.

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