DONNA FINKELSTEIN MD
NPI 1235129339
Internal Medicine in New York, NY
About Donna Finkelstein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DONNA FINKELSTEIN MD (NPI 1235129339) is an individual internal medicine provider in New York, New York, licensed in New York (210299) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS, is affiliated with Putnam Hospital Center, and is a graduate of New York University School Of Medicine (1996).
NPPES Registry Identity
Specialties & Licenses
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
Donna Finkelstein 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
3Medicare enrollment records show Donna Finkelstein reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10009
- Reassigned Medicare billing, New York enrollment
- 186 clinicians in this Medicare group
New York, NY 10019
- Reassigned Medicare billing, New York enrollment
- 769 clinicians in this Medicare group
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Optum Medical Care PC
- 1,601 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 31
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.
Putnam Hospital Center
Acute Care Hospitals · Carmel, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10003 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.
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 Donna Finkelstein's NPI number?
The NPI number for Donna Finkelstein is 1235129339. It was assigned to this individual provider in the NPPES registry on October 28, 2005.
Where is Donna Finkelstein located?
Donna Finkelstein practices at 10 Union Sq E Ste 3G, New York, NY 10003. The listed phone number is (212) 844-8100.
What is Donna Finkelstein's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Donna Finkelstein enrolled in Medicare?
Yes. Donna 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 organizations bill Medicare for Donna Finkelstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donna Finkelstein reassigns Medicare benefits to 3 organizations: William F. Ryan Community Health Center Inc (New York, NY), Icahn School Of Medicine At Mount Sinai (New York, NY) and Optum Medical Care, P.C. (Mount Kisco, 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 Donna Finkelstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Donna Finkelstein affiliated with any hospitals?
According to CMS data, Donna Finkelstein is affiliated with Putnam Hospital Center.
When was this NPI record last updated?
The NPPES record for Donna Finkelstein was last updated on April 17, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.