LEONARD OLLENNU
NPI 1245016757
Nurse Practitioner - Family in North Brunswick, NJ
About Leonard Ollennu NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEONARD OLLENNU (NPI 1245016757) is an individual family provider in North Brunswick, New Jersey, licensed in New Jersey (26NJ14910000) and active in the NPI registry since August 2023. He is enrolled in Medicare PECOS, is affiliated with Cooperman Barnabas Medical Center, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses 2
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
Leonard Ollennu 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 Leonard Ollennu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Elizabeth, NJ 07202
- Reassigned Medicare billing, New Jersey enrollment
- 1,894 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cooperman Barnabas Medical Center
Acute Care Hospitals · Livingston, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08902 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Leonard Ollennu's NPI number?
The NPI number for Leonard Ollennu is 1245016757. It was assigned to this individual provider in the NPPES registry on August 31, 2023.
Where is Leonard Ollennu located?
Leonard Ollennu practices at 519 Allgair Ave, North Brunswick, NJ 08902. The listed phone number is (732) 447-4687.
What is Leonard Ollennu's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Leonard Ollennu enrolled in Medicare?
Yes. Leonard Ollennu 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 Leonard Ollennu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leonard Ollennu reassigns Medicare benefits to Barnabas Health Medical Group PC (Elizabeth, NJ). 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 Leonard Ollennu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Leonard Ollennu affiliated with any hospitals?
According to CMS data, Leonard Ollennu is affiliated with Cooperman Barnabas Medical Center.
When was this NPI record last updated?
The NPPES record for Leonard Ollennu was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Leonard Ollennu · NPI 1245016757
Family physician in North Brunswick, New Jersey. Individual provider, active in the CMS NPPES registry since August 31, 2023.
## Identity
- **NPI:** 1245016757 (Entity type: Individual)
- **Enumerated:** August 31, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 26NJ14910000 (New Jersey)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 519 ALLGAIR AVE, North Brunswick, NJ 08902-2907
- **Phone:** (732) 447-4687
## 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:** Barnabas Health Medical Group PC (NPI 1841557246, Elizabeth, NJ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** January 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1245016757) · Data from the CMS NPPES public registry.