Jean-Jeffrey Marcellus, N.P.
NPI 1881906766 · Adult Health Nurse Practitioner · Rockville Centre, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jean-Jeffrey Marcellus, N.P. is a Adult Health Nurse Practitioner provider in Rockville Centre, NY (NPI 1881906766).
Provider details
- NPI number
- 1881906766
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 404910 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 89 | — |
| Olanzapine | 52 | 11 |
| Buprenorphine Hcl/Naloxone Hclbrand: Zubsolv | 50 | — |
| Quetiapine Fumarate | 46 | — |
| Clonazepam | 39 | — |
| Clozapine | 28 | — |
| Sertraline Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$321 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 15 2nd Ave Fl 3Brooklyn, NY 11215-2711Phone: (718) 514-6007
Registry dates
- Enumerated
- 2010-07-08
- Last updated
- 2026-02-09
- Certified
- 2026-02-09
Frequently asked questions
- What is Jean-Jeffrey Marcellus's NPI number?
- Jean-Jeffrey Marcellus's National Provider Identifier (NPI) is 1881906766, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jean-Jeffrey Marcellus's specialty?
- Jean-Jeffrey Marcellus is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jean-Jeffrey Marcellus located?
- Jean-Jeffrey Marcellus's practice location on file with NPPES is 265 Sunrise Hwy Ste 1-726, Rockville Centre, NY 11570-4912.
- What is Jean-Jeffrey Marcellus's phone number?
- The practice phone number listed in the NPPES registry for Jean-Jeffrey Marcellus is (516) 728-0672.
- Does Jean-Jeffrey Marcellus accept Medicare?
- Jean-Jeffrey Marcellus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jean-Jeffrey Marcellus's NPI active?
- Yes — Jean-Jeffrey Marcellus's NPI (1881906766) is active in the NPPES registry as of the last update on 2026-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.