Jack Greiner
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2024
- Practice address
- 94 Old Short Hills Road, Livingston, NJ 07039
- Practice phone
- Call (973) 322-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Jack Greiner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Jack Greiner is an acute care nurse practitioner in Livingston, New Jersey
Jack Greiner practices at Cooperman Barnabas Medical Center in Livingston, New Jersey, part of RWJBarnabas Health.
Jack Greiner's NPI, 1972320125, was assigned on September 20, 2024. Jack Greiner holds New Jersey license 26NJ15141400.
- NPI
- 1972320125NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527575968
- NPI enumeration date
- September 20, 2024
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (973) 322-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 27
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Jack Greiner practices at Cooperman Barnabas Medical Center in Livingston, New Jersey
Jack Greiner's primary practice is Cooperman Barnabas Medical Center, at 94 Old Short Hills Road, Livingston, NJ 07039 in Essex County. The practice phone is (973) 322-5000.
- Cooperman Barnabas Medical Center94 Old Short Hills Road, Livingston, NJ 07039 · Essex CountyPhone(973) 322-5000
Source: Dmand AI Affiliation Data
Jack Greiner is affiliated with 1 site of care and 1 medical group
Jack Greiner's primary practice is Cooperman Barnabas Medical Center in Livingston, New Jersey, part of RWJBarnabas Health. The medical group on file is RWJBarnabas Health Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Jack Greiner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Jack Greiner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cooperman Barnabas Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across RWJBarnabas Health and 6.2K+ hospitals, with verified contacts in the same login.
Jack Greiner is one of 753 acute care nurse practitioners in New Jersey
Acute care is Jack Greiner's primary specialty in the NPI Registry, under taxonomy code 363LA2100X. Jack Greiner is licensed in New Jersey.
Specialties and state licenses
- Acute care nurse practitioner, New JerseyPrimary
Acute care nurse practitioners near Jack Greiner
Counts of acute care nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Jack Greiner's patients have a median age of 86
Across all payers, Dmand AI patient panel data puts Jack Greiner's median patient age at 86, with 33% women.
Jack Greiner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 86
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
How Jack Greiner takes part in Medicare
Jack Greiner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Jack Greiner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Jack Greiner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Jack Greiner's NPI number?
Jack Greiner's NPI number is 1972320125. It was assigned on September 20, 2024, and it is active in the NPI Registry.
What does Jack Greiner specialize in?
Jack Greiner is an acute care nurse practitioner in Livingston, New Jersey. The primary specialty in the NPI Registry is Acute Care Nurse Practitioner (taxonomy code 363LA2100X).
Where does Jack Greiner practice?
Jack Greiner practices at 94 Old Short Hills Road, Livingston, NJ 07039. Jack Greiner's primary practice is Cooperman Barnabas Medical Center in Livingston, New Jersey, part of RWJBarnabas Health.
What is Jack Greiner's office phone number?
The practice phone on file for Jack Greiner is (973) 322-5000.
What is Jack Greiner's medical license number?
Jack Greiner holds New Jersey license 26NJ15141400.
Which hospitals is Jack Greiner affiliated with?
Jack Greiner practices at Cooperman Barnabas Medical Center in Livingston, New Jersey.
What medical group is Jack Greiner part of?
Jack Greiner is linked to RWJBarnabas Health Medical Group.
Does Jack Greiner accept Medicare?
Yes. CMS lists Jack Greiner as accepting Medicare assignment.
How long has Jack Greiner been practicing?
Jack Greiner graduated from medical school in 2025, 1 years ago.
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