Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mr. Jack Greiner

Individual provider Acute Care Nurse Practitioner · NPI 1972320125

Mr. Jack Greiner is a Nurse Practitioner in Nutley, New Jersey. Qualified in 2025, 1 year ago. Practices with Barnabas Health Medical Group PC, a 1,025-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
1
Licensed in
NJ
In the registry since
2024
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

340 Kingsland St
Nutley, NJ 07110-1150
Phone: (973) 761-9306
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 26NJ15141400 (NJ)

Record details

NPI number1972320125
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedSeptember 20, 2024
Last updated in NPPESSeptember 20, 2024
Certification dateSeptember 20, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Group practice Barnabas Health Medical Group Pc — 1025 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Barnabas Health Medical Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1025 clinicians in the practice; 12 are shown here.

Other providers in Nutley