VIVIANNE MARTINE SAMBOUR M.D
NPI 1821436239
Hospitalist in Oceanside, NY
About Vivianne Martine Sambour M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VIVIANNE MARTINE SAMBOUR M.D (NPI 1821436239) is an individual hospitalist provider in Oceanside, New York, licensed in New York (271393) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, is affiliated with Mount Sinai South Nassau, and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses 2
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
Vivianne Martine Sambour M.d 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 Reassignment
Medicare enrollment records show Vivianne Sambour reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oceanside, NY 11572
- Reassigned Medicare billing, New York enrollment
- 302 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Sinai South Nassau
Acute Care Hospitals · Oceanside, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11572 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OCEANSIDE, NY 11572
OCEANSIDE, NY 11572
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 Vivianne Sambour's NPI number?
The NPI number for Vivianne Sambour is 1821436239. It was assigned to this individual provider in the NPPES registry on June 7, 2013.
Where is Vivianne Sambour located?
Vivianne Sambour practices at 1 Healthy Way, Oceanside, NY 11572. The listed phone number is (516) 632-3000.
What is Vivianne Sambour's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Vivianne Sambour enrolled in Medicare?
Yes. Vivianne Sambour 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 organization bills Medicare for Vivianne Sambour's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Vivianne Sambour reassigns Medicare benefits to Mount Sinai School Of Medicine (Oceanside, NY). The 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 Vivianne Sambour's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Vivianne Sambour affiliated with any hospitals?
According to CMS data, Vivianne Sambour is affiliated with Mount Sinai South Nassau.
When was this NPI record last updated?
The NPPES record for Vivianne Sambour was last updated on July 14, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.