KONSTANTINOS LEOU MD
NPI 1306269493
Internal Medicine - Critical Care Medicine in Paterson, NJ
About Konstantinos Leou Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KONSTANTINOS LEOU MD (NPI 1306269493) is an individual critical care medicine provider in Paterson, New Jersey, licensed in New Jersey (25MA10499600) and active in the NPI registry since January 2014. He is enrolled in Medicare PECOS, is affiliated with Valley Hospital, and maintains a secondary practice location in Paramus.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
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
Konstantinos Leou 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 Konstantinos Leou reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Paterson, NJ 07503
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: St Josephs Healthcare Inc
- 372 clinicians in this Medicare group
Paterson, NJ 07503
- Reassigned Medicare billing, New Jersey enrollment
- 317 clinicians in this Medicare group
Paramus, NJ 07652
- Reassigned Medicare billing, New Jersey enrollment
- 833 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 7
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Valley Hospital
Acute Care Hospitals · Paramus, NJSt Joseph's University Medical Center Inc
Acute Care Hospitals · Paterson, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07503 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.
PATERSON, NJ 07503
PATERSON, NJ 07503
PATERSON, NJ 07503
PATERSON, NJ 07503
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 Konstantinos Leou's NPI number?
The NPI number for Konstantinos Leou is 1306269493. It was assigned to this individual provider in the NPPES registry on January 27, 2014.
Where is Konstantinos Leou located?
Konstantinos Leou practices at 703 Main St, Paterson, NJ 07503. The listed phone number is (201) 301-5927.
What is Konstantinos Leou's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Konstantinos Leou enrolled in Medicare?
Yes. Konstantinos Leou 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 Konstantinos Leou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Konstantinos Leou reassigns Medicare benefits to 3 organizations: St. Joseph's Healthcare, Inc. (Paterson, NJ), St Josephs Medical Group PC (Paterson, NJ) and Valley Physician Services PC (Paramus, NJ). 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 Konstantinos Leou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Konstantinos Leou accept?
Health plans from Oscar Health list Konstantinos Leou as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Konstantinos Leou affiliated with any hospitals?
According to CMS data, Konstantinos Leou is affiliated with Valley Hospital and St Joseph's University Medical Center Inc.
When was this NPI record last updated?
The NPPES record for Konstantinos Leou was last updated on April 21, 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.