STEVEN A KROOP MD
NPI 1043257108
Radiology - Diagnostic Radiology in Sleepy Hollow, NY
About Steven A Kroop Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEVEN A KROOP MD (NPI 1043257108) is an individual diagnostic radiology provider in Sleepy Hollow, New York, licensed in New York (135421) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and is a graduate of Columbia University College Of Physicians And Surgeons (1977).
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
Steven A Kroop 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 Steven Kroop reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Katonah, NY 10536
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Westchester Health Medical PC
- 150 clinicians in this Medicare group
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Seaford, NY 11783
- Reassigned Medicare billing, New York enrollment
- 391 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 29
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.
Lenox Hill Hospital
Acute Care Hospitals · New York, NYNorthern Westchester Hospital
Acute Care Hospitals · Mount Kisco, NYPhelps Hospital
Acute Care Hospitals · Sleepy Hollow, NYHudson Valley Hospital Center
Acute Care Hospitals · Cortlandt Manor, NYPlainview Hospital
Acute Care Hospitals · Plainview, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10591 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 2
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 Steven Kroop's NPI number?
The NPI number for Steven Kroop is 1043257108. It was assigned to this individual provider in the NPPES registry on May 31, 2006.
Where is Steven Kroop located?
Steven Kroop practices at 701 No Broadway, Sleepy Hollow, NY 10591. The listed phone number is (914) 366-3450.
What is Steven Kroop's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Steven Kroop enrolled in Medicare?
Yes. Steven Kroop 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 Steven Kroop's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Kroop reassigns Medicare benefits to 3 organizations: Westchester Health Medical, P.C. (Katonah, NY), North Shore-Lij Medical PC (Great Neck, NY) and Southside Faculty Medical Affiliates University Faculty Practice Corp (Seaford, 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 Steven Kroop's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Steven Kroop affiliated with any hospitals?
According to CMS data, Steven Kroop is affiliated with Lenox Hill Hospital, Northern Westchester Hospital, Phelps Hospital, Hudson Valley Hospital Center and Plainview Hospital.
When was this NPI record last updated?
The NPPES record for Steven Kroop was last updated on February 10, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Steven A Kroop, MD · NPI 1043257108
Diagnostic Radiology physician in Sleepy Hollow, New York. Individual provider, active in the CMS NPPES registry since May 31, 2006.
## Identity
- **NPI:** 1043257108 (Entity type: Individual)
- **Enumerated:** May 31, 2006
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 135421 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 701 NO BROADWAY, Sleepy Hollow, NY 10591
- **Phone:** (914) 366-3450
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Westchester Health Medical, P.C. (NPI 1386188647, Katonah, NY); North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY); Southside Faculty Medical Affiliates University Faculty Practice Corp (NPI 1033791058, Seaford, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 1977
## Record status
- **NPPES last updated:** February 10, 2010
- **Other identifiers:** Medicare UPIN B17662
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Source: [NPI Profile](https://npiprofile.com/npi/1043257108) · Data from the CMS NPPES public registry.