DR. PREM L SAGAR M.D.,F.A.C.P.
NPI 1144285479
Internal Medicine in Bethpage, NY
About Dr. Prem L Sagar M.d.,f.a.c.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PREM L SAGAR M.D.,F.A.C.P. (NPI 1144285479) is an individual internal medicine provider in Bethpage, New York, licensed in New York (210715) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS, is affiliated with Plainview Hospital, and is a graduate of Other (1977).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 14
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
Dr. Prem L Sagar M.d.,f.a.c.p. 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 Prem Sagar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Islip, NY 11795
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Samaritan Medical Services PC
- 209 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 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 3
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.
Plainview Hospital
Acute Care Hospitals · Plainview, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11714 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
BETHPAGE, NY 11714
BETHPAGE, NY 11714
BETHPAGE, NY 11714
BETHPAGE, NY 11714
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 Prem Sagar's NPI number?
The NPI number for Prem Sagar is 1144285479. It was assigned to this individual provider in the NPPES registry on April 19, 2006.
Where is Prem Sagar located?
Prem Sagar practices at 4250 Hempstead Tpke Suite 17, Bethpage, NY 11714. The listed phone number is (516) 735-5522.
What is Prem Sagar's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Prem Sagar enrolled in Medicare?
Yes. Prem Sagar 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 Prem Sagar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Prem Sagar reassigns Medicare benefits to 2 organizations: Samaritan Medical Services, P.C. (West Islip, NY) and North Shore - Lij Medical PC (New Hyde Park, 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 Prem Sagar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Prem Sagar affiliated with any hospitals?
According to CMS data, Prem Sagar is affiliated with Plainview Hospital.
When was this NPI record last updated?
The NPPES record for Prem Sagar was last updated on September 14, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Dr. Prem L Sagar, M.D.,F.A.C.P. · NPI 1144285479
Internal Medicine physician in Bethpage, New York. Individual provider, active in the CMS NPPES registry since April 19, 2006.
## Identity
- **NPI:** 1144285479 (Entity type: Individual)
- **Enumerated:** April 19, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 210715 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4250 HEMPSTEAD TPKE, SUITE 17, Bethpage, NY 11714-5711
- **Phone:** (516) 735-5522 · **Fax:** (516) 644-5385
## 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): Samaritan Medical Services, P.C. (NPI 1124184544, West Islip, NY); North Shore - Lij Medical PC (NPI 1790043479, New Hyde Park, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1977
## Record status
- **NPPES last updated:** September 14, 2012
- **Other identifiers:** Other 7475519 (NY); Other 179120 (NY); Other 2590818 (NY); and 11 more
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Source: [NPI Profile](https://npiprofile.com/npi/1144285479) · Data from the CMS NPPES public registry.