MS. GRETHEL JOHN APN
Accepted Insurance for NPI 1770241663
Nurse Practitioner in Livingston, NJ
Does Grethel John take my insurance?
Oscar Health includes Grethel John in 7 New Jersey plans sold on Get Covered New Jersey for 2026, all on its Individual New Jersey network.
Call before you book: insurer directories can be out of date, so call the office at (973) 322-6500 to confirm your plan is accepted. These are Marketplace (ACA) plans only; employer, Medicare Advantage and Medicaid plans are not listed.
New Jersey plans 7 plans
Plans sold to New Jersey residents. Costs are for the standard version of each plan.
Oscar Health
Questions about Grethel John’s insurance
Does Grethel John take Oscar Health?
For New Jersey Marketplace plans, yes: Oscar Health includes Grethel John in 7 plans for 2026. Call the office at (973) 322-6500 to confirm your plan before booking.
Is Grethel John accepting new patients?
The insurers that list Grethel John report that Grethel John is accepting new patients. Call the office at (973) 322-6500 to confirm your plan before booking.
Do I need a referral to see Grethel John?
Not under the New Jersey plans that list Grethel John: the 2026 plan files say a specialist referral is not required.
Does Grethel John accept Medicare?
Yes. CMS files show Grethel John accepts Medicare assignment and is enrolled in PECOS, which allows ordering and referring for Medicare patients.
About this data
This page combines public files from insurers and from CMS. NPI Profile does not contract with insurers and does not decide who is in network.
| Source | What it provides here | Source date |
|---|---|---|
| Insurer provider directory files | Which plans list this provider, network tier, accepting new patients, years listed. Insurers selling on HealthCare.gov must publish these files under CMS rules. | Oscar Health: Nov 5, 2026 |
| CMS state-based exchange public use files | Plan details for states that run their own exchange, here New Jersey. No document links. | Plan year 2026, Jun 3, 2026 |
- Only Marketplace (ACA) plans are covered. Employer, Medicare Advantage and Medicaid managed care networks are not in these files.
- Costs are for the standard version of each plan. People who qualify for cost-sharing reductions pay less on Silver plans.
- Accepting new patients and network tier are reported by each insurer, and can differ from what the practice tells you.
- Networks change during the year. Confirm with your insurer or the practice before booking.
