MS. GRETHEL JOHN APN
Accepted Insurance for NPI 1770241663
Nurse Practitioner in Livingston, NJ
Accepted Insurance & Health Plans Health Insurance Marketplace
Marketplace plan participation on file for this provider · 2026 plan year
MS. GRETHEL JOHN APN, a nurse practitioner provider in Livingston, NJ, is listed as in-network for 7 health insurance plans from Oscar Health. This list is compiled from the CMS Health Insurance Marketplace public use files for the 2026 plan year.
Oscar Health
Bronze Classic
Gold Classic PCP Saver
Silver Classic Saver Plus
Silver Classic
Silver Elite Plus
Silver Simple PCP Saver
Silver Simple
Coverage Questions FAQs
Common questions about this provider’s insurance participation, answered from the CMS Health Insurance Marketplace and Medicare enrollment files.
What insurance does MS. GRETHEL JOHN APN accept?
Marketplace files for the 2026 plan year list MS. GRETHEL JOHN APN as in-network for 7 plans from Oscar Health. The full list above shows each plan's metal level, network type, and plan IDs.
Is MS. GRETHEL JOHN APN enrolled in Medicare?
Yes. CMS enrollment files show this provider accepts Medicare assignment, meaning they agree to accept the Medicare-approved amount as full payment for covered services. The provider is also enrolled in PECOS, which certifies them to order, refer, and prescribe for Medicare beneficiaries.
What network types does MS. GRETHEL JOHN APN participate in?
The accepted plans include 7 EPO plans. EPO (Exclusive Provider Organization) plans cover network providers only, generally without referral requirements.
Where does this insurance data come from and how current is it?
Plan participation is compiled from the official CMS Health Insurance Marketplace public use files for the 2026 plan year and refreshed as CMS publishes updated files. Networks change during the year, so always verify coverage with the insurance company or the provider's office before scheduling care.
