OMAR ELNAGGAR
NPI 1225597131
Anesthesiology in New York, NY
About Omar Elnaggar NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OMAR ELNAGGAR (NPI 1225597131) is an individual anesthesiology provider in New York, New York, licensed in New York (331400) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and is a graduate of University Of Toledo College Of Medicine (2019).
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
Omar Elnaggar 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 Omar Elnaggar 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 10029
- Reassigned Medicare billing, New York enrollment
- 1,067 clinicians in this Medicare group
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 329 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
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 Hospital
Acute Care Hospitals · New York, NYOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
NEW YORK, NY 10029
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 Omar Elnaggar's NPI number?
The NPI number for Omar Elnaggar is 1225597131. It was assigned to this individual provider in the NPPES registry on March 19, 2019.
Where is Omar Elnaggar located?
Omar Elnaggar practices at 1 Gustave L Levy Place, New York, NY 10029. The listed phone number is (212) 241-6500.
What is Omar Elnaggar's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Omar Elnaggar enrolled in Medicare?
Yes. Omar Elnaggar 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 Omar Elnaggar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Omar Elnaggar reassigns Medicare benefits to 2 organizations: Fpa Hospital Based (New York, 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 Omar Elnaggar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Omar Elnaggar affiliated with any hospitals?
According to CMS data, Omar Elnaggar is affiliated with Mount Sinai Hospital.
When was this NPI record last updated?
The NPPES record for Omar Elnaggar was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Omar Elnaggar · NPI 1225597131
Anesthesiology physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 19, 2019.
## Identity
- **NPI:** 1225597131 (Entity type: Individual)
- **Enumerated:** March 19, 2019
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 331400 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 GUSTAVE L LEVY PLACE, New York, NY 10029-6504
- **Phone:** (212) 241-6500
## 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): Fpa Hospital Based (NPI 1629319413, New York, NY); Icahn School Of Medicine At Mount Sinai (NPI 1215488127, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Toledo College Of Medicine, class of 2019
## Record status
- **NPPES last updated:** September 4, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1225597131) · Data from the CMS NPPES public registry.