JEAN-JEFFREY MARCELLUS N.P.
NPI 1881906766
Nurse Practitioner - Adult Health in Rockville Centre, NY
About Jean-jeffrey Marcellus N.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JEAN-JEFFREY MARCELLUS N.P. (NPI 1881906766) is an individual adult health provider in Rockville Centre, New York, licensed in New York (305892) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai St Luke's Roosevelt Hospital, and maintains a secondary practice location in Brooklyn.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Jean-jeffrey Marcellus N.p. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Jean-jeffrey Marcellus reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11215
- Reassigned Medicare billing, New York enrollment
- 19 clinicians in this Medicare group
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 385 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Sinai St Luke's Roosevelt Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11570 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jean-jeffrey Marcellus's NPI number?
The NPI number for Jean-jeffrey Marcellus is 1881906766. It was assigned to this individual provider in the NPPES registry on July 8, 2010. The provider is also known as Jean-Jeffrey Marcellus N.P.
Where is Jean-jeffrey Marcellus located?
Jean-jeffrey Marcellus practices at 265 Sunrise Hwy Ste 1-726, Rockville Centre, NY 11570. The listed phone number is (516) 728-0672.
What is Jean-jeffrey Marcellus's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Jean-jeffrey Marcellus enrolled in Medicare?
Yes. Jean-jeffrey Marcellus is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jean-jeffrey Marcellus's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jean-jeffrey Marcellus reassigns Medicare benefits to 2 organizations: Revcore Recovery Center Of Manhattan, LLC (Brooklyn, NY) and Icahn School Of Medicine At Mount Sinai (New York, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jean-jeffrey Marcellus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jean-jeffrey Marcellus accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Texas, Cigna HealthCare of Florida, Inc., Cigna Healthcare and UnitedHealthcare list Jean-jeffrey Marcellus as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Jean-jeffrey Marcellus affiliated with any hospitals?
According to CMS data, Jean-jeffrey Marcellus is affiliated with Mount Sinai St Luke's Roosevelt Hospital.
When was this NPI record last updated?
The NPPES record for Jean-jeffrey Marcellus was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Jean-Jeffrey Marcellus, N.P. · NPI 1881906766
Adult Health physician in Rockville Centre, New York. Individual provider, active in the CMS NPPES registry since July 8, 2010.
## Identity
- **NPI:** 1881906766 (Entity type: Individual)
- **Enumerated:** July 8, 2010
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 305892 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 265 SUNRISE HWY STE 1-726, Rockville Centre, NY 11570-4912
- **Phone:** (516) 728-0672
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Revcore Recovery Center Of Manhattan, LLC (NPI 1154094555, Brooklyn, NY); Icahn School Of Medicine At Mount Sinai (NPI 1033482518, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** February 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1881906766) · Data from the CMS NPPES public registry.