HARLEY J COHEN MD
NPI 1669535845
Internal Medicine - Rheumatology in Nesconset, NY
About Harley J Cohen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HARLEY J COHEN MD (NPI 1669535845) is an individual rheumatology provider in Nesconset, New York, licensed in New York (250201-1) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with North Shore University Hospital, and is a graduate of Jefferson Medical College Of Thomas Jefferson University (1999).
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
Harley J Cohen 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 Harley Cohen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Nesconset, NY 11767
- Reassigned Medicare billing, New York enrollment
- 572 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 28
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.
North Shore University Hospital
Acute Care Hospitals · Manhasset, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11767 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 16
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 Harley Cohen's NPI number?
The NPI number for Harley Cohen is 1669535845. It was assigned to this individual provider in the NPPES registry on December 18, 2006.
Where is Harley Cohen located?
Harley Cohen practices at 59 Southern Blvd, Nesconset, NY 11767. The listed phone number is (631) 659-1700.
What is Harley Cohen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Harley Cohen enrolled in Medicare?
Yes. Harley Cohen 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 Harley Cohen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Harley Cohen reassigns Medicare benefits to North Shore Medical Group Of The Mount Sinai School Of Medicine (Nesconset, 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 Harley Cohen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Harley Cohen affiliated with any hospitals?
According to CMS data, Harley Cohen is affiliated with North Shore University Hospital.
When was this NPI record last updated?
The NPPES record for Harley Cohen was last updated on November 30, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.