NGU WAR SAN MD
NPI 1245980580
Internal Medicine in Bellport, NY
About Ngu War San Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NGU WAR SAN MD (NPI 1245980580) is an individual internal medicine provider in Bellport, New York, licensed in New York (1245980580) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, is affiliated with Long Island Community Hospital, and is a graduate of Other (2014).
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
Ngu War San Md 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 Ngu San reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11237
- Reassigned Medicare billing, New York enrollment
- 427 clinicians in this Medicare group
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 7,712 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Long Island Community Hospital
Acute Care Hospitals · Patchogue, NYNyu Langone Hospitals
Acute Care Hospitals · New York, NYWyckoff Heights Medical Center
Acute Care Hospitals · Brooklyn, NYSuny/Stony Brook University Hospital
Acute Care Hospitals · Stony Brook, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11713 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Ngu San's NPI number?
The NPI number for Ngu San is 1245980580. It was assigned to this individual provider in the NPPES registry on March 28, 2022.
Where is Ngu San located?
Ngu San practices at 1950 Foxglove Cir, Bellport, NY 11713. The listed phone number is (718) 813-9947.
What is Ngu San's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Ngu San enrolled in Medicare?
Yes. Ngu San 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 Ngu San's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ngu San reassigns Medicare benefits to 2 organizations: Wyckoff Professional Medical Services, PC (Brooklyn, NY) and New York University (Boynton Beach, FL). 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 Ngu San's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ngu San affiliated with any hospitals?
According to CMS data, Ngu San is affiliated with Long Island Community Hospital, Nyu Langone Hospitals, Wyckoff Heights Medical Center and Suny/Stony Brook University Hospital.
When was this NPI record last updated?
The NPPES record for Ngu San was last updated on June 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Ngu War San, MD · NPI 1245980580
Internal Medicine physician in Bellport, New York. Individual provider, active in the CMS NPPES registry since March 28, 2022.
## Identity
- **NPI:** 1245980580 (Entity type: Individual)
- **Enumerated:** March 28, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 1245980580 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1950 FOXGLOVE CIR, Bellport, NY 11713-3067
- **Phone:** (718) 813-9947
## 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): Wyckoff Professional Medical Services, PC (NPI 1659710796, Brooklyn, NY); New York University (NPI 1285826438, Boynton Beach, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** June 27, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1245980580) · Data from the CMS NPPES public registry.