KENNETH E ROSENZWEIG MD
NPI 1063482271
Radiology - Radiation Oncology in New York, NY
About Kenneth E Rosenzweig Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KENNETH E ROSENZWEIG MD (NPI 1063482271) is an individual radiation oncology provider in New York, New York, licensed in New York (206749) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai Hospital, and is a graduate of Yale University School Of Medicine (1992).
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
Kenneth E Rosenzweig 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 Reassignment
Medicare enrollment records show Kenneth Rosenzweig reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 36 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.
Mount Sinai Hospital
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10021 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.
NEW YORK, NY 10021
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 Kenneth Rosenzweig's NPI number?
The NPI number for Kenneth Rosenzweig is 1063482271. It was assigned to this individual provider in the NPPES registry on January 23, 2006.
Where is Kenneth Rosenzweig located?
Kenneth Rosenzweig practices at 1275 York Ave, New York, NY 10021. The listed phone number is (646) 227-3813.
What is Kenneth Rosenzweig's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Kenneth Rosenzweig enrolled in Medicare?
Yes. Kenneth Rosenzweig 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 Kenneth Rosenzweig's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth Rosenzweig reassigns Medicare benefits to Icahn School Of Medicine At Mount Sinai (New York, 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 Kenneth Rosenzweig's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Kenneth Rosenzweig affiliated with any hospitals?
According to CMS data, Kenneth Rosenzweig is affiliated with Mount Sinai Hospital.
When was this NPI record last updated?
The NPPES record for Kenneth Rosenzweig was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Kenneth E Rosenzweig, MD · NPI 1063482271
Radiation Oncology physician in New York, New York. Individual provider, active in the CMS NPPES registry since January 23, 2006.
## Identity
- **NPI:** 1063482271 (Entity type: Individual)
- **Enumerated:** January 23, 2006
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **State license:** 206749 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 1275 YORK AVE, New York, NY 10021-6007
- **Phone:** (646) 227-3813
## 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:** Icahn School Of Medicine At Mount Sinai (NPI 1770856254, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Yale University School Of Medicine, class of 1992
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1063482271) · Data from the CMS NPPES public registry.