DR. DAVID PFEFFER M.D.
NPI 1205819117
Radiology - Diagnostic Radiology in West Islip, NY
About Dr. David Pfeffer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID PFEFFER M.D. (NPI 1205819117) is an individual diagnostic radiology provider in West Islip, New York, licensed in New York (222296-2) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and is a graduate of New York Medical College (1998).
NPPES Registry Identity
Specialties & Licenses
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. David Pfeffer M.d. 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
3Medicare enrollment records show David Pfeffer reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Commack, NY 11725
- Reassigned Medicare billing, New York enrollment
- 572 clinicians in this Medicare group
Oceanside, NY 11572
- Reassigned Medicare billing, New York enrollment
- 23 clinicians in this Medicare group
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 1,067 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 40
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Sinai Hospital
Acute Care Hospitals · New York, NYNassau University Medical Center
Acute Care Hospitals · East Meadow, NYLong Island Jewish Medical Center
Acute Care Hospitals · New Hyde Park, NYMount Sinai South Nassau
Acute Care Hospitals · Oceanside, NYNyu Langone Hospitals
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11795 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WEST ISLIP, NY 11795
WEST ISLIP, NY 11795
WEST ISLIP, NY 11795
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 David Pfeffer's NPI number?
The NPI number for David Pfeffer is 1205819117. It was assigned to this individual provider in the NPPES registry on November 23, 2005.
Where is David Pfeffer located?
David Pfeffer practices at 1000 Montauk Hwy, West Islip, NY 11795. The listed phone number is (952) 595-1301.
What is David Pfeffer's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is David Pfeffer enrolled in Medicare?
Yes. David Pfeffer 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 David Pfeffer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Pfeffer reassigns Medicare benefits to 3 organizations: North Shore Medical Group Of The Mount Sinai School Of Medicine (Commack, NY), Icahn School Of Medicine At Mount Sinai (Oceanside, NY) and Fpa Hospital Based (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 David Pfeffer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is David Pfeffer affiliated with any hospitals?
According to CMS data, David Pfeffer is affiliated with Mount Sinai Hospital, Nassau University Medical Center, Long Island Jewish Medical Center, Mount Sinai South Nassau and Nyu Langone Hospitals.
When was this NPI record last updated?
The NPPES record for David Pfeffer was last updated on August 13, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.