Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Rosemary M Buonocore, APN, FNP-C

Obesity Medicine (Preventive Medicine) Physician in Livingston, NJ · enumerated 2021 · practices at Essex County Weightloss, LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255916763

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Registry record

Entity type Individual (Type 1)

Name Dr. Rosemary M Buonocore

Credential APN, FNP-C

Sex Female

Practice address 5 Regent St Ste 509, Livingston, NJ, 07039

Phone (973) 251-2437

Enumeration date Mar 16, 2021

Last updated in NPPES Mar 16, 2021

Taxonomy & licenses

2083B0002X Obesity Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License 1649723743 (FL) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1255916763 active?

Yes, as of the latest NPPES snapshot, NPI 1255916763 is active (record last updated 2021-03-16).

How do I verify Rosemary Buonocore's NPI record?

Cross-check NPI 1255916763 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Essex County Weightloss, LLC Internal Medicine Physician · Livingston, NJ NPI 1649723743 Amanda Lewis Family Nurse Practitioner · Livingston, NJ NPI 1093585895

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-16.