DR. MARC ELLIOTT FINKELSTEIN M.D.
NPI 1801892906
Specialist in Bay Shore, NY
About Dr. Marc Elliott Finkelstein M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARC ELLIOTT FINKELSTEIN M.D. (NPI 1801892906) is an individual specialist in Bay Shore, New York, licensed in New York (151964) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Hospital Medical Center, and is a graduate of Other (1980).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Marc Elliott Finkelstein 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 Reassignment
Medicare enrollment records show Marc Finkelstein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stony Brook, NY 11794
- Reassigned Medicare billing, New York enrollment
- 114 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 11
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.
Good Samaritan Hospital Medical Center
Acute Care Hospitals · West Islip, NYReferred Medical Equipment & Supplies CMS DME claims
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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BAY SHORE, NY 11706
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 Marc Finkelstein's NPI number?
The NPI number for Marc Finkelstein is 1801892906. It was assigned to this individual provider in the NPPES registry on June 23, 2005.
Where is Marc Finkelstein located?
Marc Finkelstein practices at 10 Brentwood Rd, Bay Shore, NY 11706. The listed phone number is (631) 665-8200.
What is Marc Finkelstein's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Marc Finkelstein enrolled in Medicare?
Yes. Marc Finkelstein 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 organization bills Medicare for Marc Finkelstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marc Finkelstein reassigns Medicare benefits to Stony Brook Surgical Associates, University Faculty Practice Corporati (Stony Brook, NY). The 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 Marc Finkelstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Marc Finkelstein affiliated with any hospitals?
According to CMS data, Marc Finkelstein is affiliated with Good Samaritan Hospital Medical Center.
When was this NPI record last updated?
The NPPES record for Marc Finkelstein was last updated on December 18, 2013. 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.