DR. PETER FRELINGHUYSEN MD
NPI 1922153832
Specialist in New York, NY
About Dr. Peter Frelinghuysen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER FRELINGHUYSEN MD (NPI 1922153832) is an individual specialist in New York, New York, licensed in New York (217689) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and is a graduate of Georgetown University School Of Medicine (1998).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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 (PECOS)
Dr. Peter Frelinghuysen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Peter Frelinghuysen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10128
- Reassigned Medicare billing, New York enrollment
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 2
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.
Lenox Hill Hospital
Acute Care Hospitals · New York, NYOther Providers at the Same Location NPPES 10
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 Peter Frelinghuysen's NPI number?
The NPI number for Peter Frelinghuysen is 1922153832. It was assigned to this individual provider in the NPPES registry on January 24, 2007. The provider is also known as Dr. Peter Frelinghuysen MD.
Where is Peter Frelinghuysen located?
Peter Frelinghuysen practices at 1155 Park Ave, New York, NY 10128. The listed phone number is (212) 360-6500.
What is Peter Frelinghuysen's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Peter Frelinghuysen enrolled in Medicare?
Yes. Peter Frelinghuysen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Peter Frelinghuysen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Frelinghuysen reassigns Medicare benefits to Sean E Mccance MD PLLC (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 Peter Frelinghuysen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Peter Frelinghuysen affiliated with any hospitals?
According to CMS data, Peter Frelinghuysen is affiliated with Lenox Hill Hospital.
When was this NPI record last updated?
The NPPES record for Peter Frelinghuysen was last updated on August 6, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.