FRED FEFER MD
NPI 1477550135
Internal Medicine - Cardiovascular Disease in Valley Stream, NY
About Fred Fefer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FRED FEFER MD (NPI 1477550135) is an individual cardiovascular disease provider in Valley Stream, New York, licensed in New York (204858) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with North Shore University Hospital, and is a graduate of Other (1990).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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
Fred Fefer 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 Fred Fefer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Freeport, NY 11520
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Western Nassau Diagnostic Imaging Services PC
- 24 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 23
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore University Hospital
Acute Care Hospitals · Manhasset, NYLong Island Jewish Medical Center
Acute Care Hospitals · New Hyde Park, NYNyu Langone Hospitals
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11580 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.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
VALLEY STREAM, NY 11580
VALLEY STREAM, NY 11580
VALLEY STREAM, NY 11580
VALLEY STREAM, NY 11580
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 Fred Fefer's NPI number?
The NPI number for Fred Fefer is 1477550135. It was assigned to this individual provider in the NPPES registry on July 7, 2005.
Where is Fred Fefer located?
Fred Fefer practices at 300 Franklin Ave, Valley Stream, NY 11580. The listed phone number is (516) 599-8280.
What is Fred Fefer's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Fred Fefer enrolled in Medicare?
Yes. Fred Fefer 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 Fred Fefer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Fred Fefer reassigns Medicare benefits to 2 organizations: North Shore - Lij Medical PC (New Hyde Park, NY) and Western Nassau Diagnostic Imaging Services P.C. (Freeport, 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 Fred Fefer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Fred Fefer affiliated with any hospitals?
According to CMS data, Fred Fefer is affiliated with North Shore University Hospital, Long Island Jewish Medical Center and Nyu Langone Hospitals.
When was this NPI record last updated?
The NPPES record for Fred Fefer was last updated on March 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.