SARA EL GASSIM
NPI 1508285214
Internal Medicine in Cortlandt Manor, NY
About Sara El Gassim NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SARA EL GASSIM (NPI 1508285214) is an individual internal medicine provider in Cortlandt Manor, New York, licensed in New York (301831) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS, is affiliated with Peconic Bay Medical Center, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Group Practice 1
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
Sara El Gassim 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
6Medicare enrollment records show Sara El Gassim reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cortlandt Manor, NY 10567
- Reassigned Medicare billing, New York enrollment
- 307 clinicians in this Medicare group
Poughkeepsie, NY 12601
- Reassigned Medicare billing, New York enrollment
- 304 clinicians in this Medicare group
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Riverhead, NY 11901
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Central Suffolk Hospital
- 134 clinicians in this Medicare group
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 7,712 clinicians in this Medicare group
Carefree, AZ 85377
- Reassigned Medicare billing, Arizona enrollment
- 118 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.
Peconic Bay Medical Center
Acute Care Hospitals · Riverhead, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10567 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CORTLANDT MANOR, NY 10567
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 Sara El Gassim's NPI number?
The NPI number for Sara El Gassim is 1508285214. It was assigned to this individual provider in the NPPES registry on April 9, 2014.
Where is Sara El Gassim located?
Sara El Gassim practices at 1980 Crompond Rd, Cortlandt Manor, NY 10567. The listed phone number is (914) 788-4635.
What is Sara El Gassim's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sara El Gassim enrolled in Medicare?
Yes. Sara El Gassim 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 Sara El Gassim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sara El Gassim reassigns Medicare benefits to 6 organizations: The Westchester Medical Practice, PC (Cortlandt Manor, NY), New York Medical Physician Associates PC (Poughkeepsie, NY), North Shore-Lij Medical PC (Great Neck, NY), Central Suffolk Hosptial (Riverhead, NY), New York University (Boynton Beach, FL) and 1 more organization, listed in the Medicare section above. 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 Sara El Gassim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sara El Gassim affiliated with any hospitals?
According to CMS data, Sara El Gassim is affiliated with Peconic Bay Medical Center.
When was this NPI record last updated?
The NPPES record for Sara El Gassim was last updated on August 29, 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.
# Sara El Gassim · NPI 1508285214
Internal Medicine physician in Cortlandt Manor, New York. Individual provider, active in the CMS NPPES registry since April 9, 2014.
## Identity
- **NPI:** 1508285214 (Entity type: Individual)
- **Enumerated:** April 9, 2014
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 301831 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1980 CROMPOND RD, Cortlandt Manor, NY 10567-4144
- **Phone:** (914) 788-4635
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): The Westchester Medical Practice, PC (NPI 1982109120, Cortlandt Manor, NY); New York Medical Physician Associates PC (NPI 1578316501, Poughkeepsie, NY); North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY); Central Suffolk Hosptial (NPI 1841637741, Riverhead, NY); New York University (NPI 1285826438, Boynton Beach, FL); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** August 29, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1508285214) · Data from the CMS NPPES public registry.