Grethel John, APN
Nurse Practitioner · Livingston, NJ
Grethel John, APN is a nurse practitioner with a practice address in Livingston, New Jersey, and NPI 1770241663, issued on Dec 7, 2021. Check the license (New Jersey 26NJ01236200, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Grethel John
- Credential
- APN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 26NJ01236200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 94 Old Short Hills RD, Livingston, NJ 07039
- Phone
- (973) 322-6500
- Enumerated
- Dec 7, 2021
- Record last updated
- Dec 10, 2024
- Medicare enrollment
- Enrolled (PECOS I20221004000036); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,961 in New Jersey → Look up another NPI →
Also registered at 94 Old Short Hills RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shirin AbbasiStudent in an Organized Health Care Education/Training Program1770416463
- Ayah AbdallahCertified Registered Nurse Anesthetist1700477379
- Ali AbdullahPeer Specialist1194560680
- Jan AcampadoGerontology Nurse Practitioner1487427001
- Lubab Al-Quraishi, MDStudent in an Organized Health Care Education/Training Program1568084572
- Laura Alban, PA-CPhysician Assistant1609482272
Verify Grethel John in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 26NJ01236200Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $21.85
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Barnabas Health Medical Group PCLivingston, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grethel John among 1,961 nurse practitioner records in New Jersey
Grethel John, APN is one of 1,961 nurse practitioner records with a practice address in New Jersey. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 62% of them.
- NPI issued2021 · 62% of these records are older, 31% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2021 · median 2019 among the 1,170 with a school on file
- Record last updated2024 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in New Jersey
There are 1,961 nurse practitioner records in New Jersey.
All 1,961 in New Jersey → Every provider in Livingston → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Emma Anonuevo, APNLivingston, NJ 070391437769916
- Wanda Chatman, APNLivingston, NJ 070391902643216
- Lauren Gasparini, APNLivingston, NJ 070391770008302
- Danielle Handsman, APNLivingston, NJ 070391437830072
- Bela Laschiver, APNLivingston, NJ 070391497896286
- Pat Lipari, RN, NP-CLivingston, NJ 070391659341345
- Darria Lloyd, NPLivingston, NJ 070391831627355
- Rita Monks, RN,MSN,APN-BC (NP)Livingston, NJ 070391417096496
Common questions
What is Grethel John, APN's NPI number?
Grethel John, APN's National Provider Identifier (NPI) is 1770241663, issued on Dec 7, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Grethel John, APN located?
The NPPES record lists a practice address at 94 Old Short Hills RD, Livingston, NJ, 07039. Phone: (973) 322-6500. Providers update this record themselves, so call before visiting.
How can I verify Grethel John, APN's license?
NPPES lists New Jersey license number 26NJ01236200, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.