RAWANN NASSAR
NPI 1447736848
Internal Medicine - Endocrinology, Diabetes & Metabolism in New York, NY
About Rawann Nassar NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RAWANN NASSAR (NPI 1447736848) is an individual endocrinology, diabetes & metabolism provider in New York, New York, licensed in New York (310420) and active in the NPI registry since July 2018. She is enrolled in Medicare PECOS, is affiliated with Mount Sinai St Luke's Roosevelt Hospital, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
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
Rawann Nassar 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 Rawann Nassar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10011
- Reassigned Medicare billing, New York enrollment
- 309 clinicians in this Medicare group
Tulsa, OK 74133
- Reassigned Medicare billing, Oklahoma enrollment
- 151 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 4
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 St Luke's Roosevelt Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10019 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Rawann Nassar's NPI number?
The NPI number for Rawann Nassar is 1447736848. It was assigned to this individual provider in the NPPES registry on July 18, 2018.
Where is Rawann Nassar located?
Rawann Nassar practices at 200 W 57th St Fl 15, New York, NY 10019. The listed phone number is (212) 247-8100.
What is Rawann Nassar's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Rawann Nassar enrolled in Medicare?
Yes. Rawann Nassar 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 Rawann Nassar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rawann Nassar reassigns Medicare benefits to 2 organizations: Icahn School Of Medicine At Mount Sinai (New York, NY) and Ahs Oklahoma Heart LLC (Tulsa, OK). 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 Rawann Nassar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rawann Nassar accept?
Health plans from Blue Cross and Blue Shield of Oklahoma, Mending Health, Oscar Insurance Company and UnitedHealthcare list Rawann Nassar 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 Rawann Nassar affiliated with any hospitals?
According to CMS data, Rawann Nassar is affiliated with Mount Sinai St Luke's Roosevelt Hospital.
When was this NPI record last updated?
The NPPES record for Rawann Nassar was last updated on April 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Rawann Nassar · NPI 1447736848
Endocrinology, Diabetes & Metabolism physician in New York, New York. Individual provider, active in the CMS NPPES registry since July 18, 2018.
## Identity
- **NPI:** 1447736848 (Entity type: Individual)
- **Enumerated:** July 18, 2018
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 310420 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 W 57TH ST FL 15, New York, NY 10019-3271
- **Phone:** (212) 247-8100
## 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): Icahn School Of Medicine At Mount Sinai (NPI 1568841930, New York, NY); Ahs Oklahoma Heart LLC (NPI 1780857540, Tulsa, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** April 6, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1447736848) · Data from the CMS NPPES public registry.