Leonard Ollennu
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 94 Old Short Hills Road, Livingston, NJ 07039
- Practice phone
- Call (973) 322-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Leonard Ollennu's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Leonard Ollennu is a family nurse practitioner in Livingston, New Jersey
Leonard Ollennu practices at Cooperman Barnabas Medical Center in Livingston, New Jersey, part of RWJBarnabas Health.
Leonard Ollennu's NPI, 1245016757, was assigned on August 31, 2023. Leonard Ollennu holds New Jersey license 26NJ14910000.
- NPI
- 1245016757NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638697519
- NPI enumeration date
- August 31, 2023
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (973) 322-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 29
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Leonard Ollennu practices at Cooperman Barnabas Medical Center in Livingston, New Jersey
Leonard Ollennu's primary practice is Cooperman Barnabas Medical Center, at 94 Old Short Hills Road, Livingston, NJ 07039 in Essex County. The practice phone is (973) 322-5000.
- Cooperman Barnabas Medical Center94 Old Short Hills Road, Livingston, NJ 07039 · Essex CountyPhone(973) 322-5000
Source: Dmand AI Affiliation Data
Leonard Ollennu is affiliated with 1 site of care and 1 medical group
Leonard Ollennu's primary practice is Cooperman Barnabas Medical Center in Livingston, New Jersey, part of RWJBarnabas Health. The medical group on file is RWJBarnabas Health Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Leonard Ollennu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Leonard Ollennu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cooperman Barnabas Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across RWJBarnabas Health and 6.2K+ hospitals, with verified contacts in the same login.
Leonard Ollennu is one of 3,211 family nurse practitioners in New Jersey
Family is Leonard Ollennu's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Leonard Ollennu is licensed in New Jersey.
Specialties and state licenses
- Family nurse practitioner, New JerseyPrimary
Family nurse practitioners near Leonard Ollennu
Counts of family nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Leonard Ollennu's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Leonard Ollennu's median patient age at 76, with 45% women.
Leonard Ollennu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
How Leonard Ollennu takes part in Medicare
Leonard Ollennu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Leonard Ollennu's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Leonard Ollennu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Leonard Ollennu's NPI number?
Leonard Ollennu's NPI number is 1245016757. It was assigned on August 31, 2023, and it is active in the NPI Registry.
What does Leonard Ollennu specialize in?
Leonard Ollennu is a family nurse practitioner in Livingston, New Jersey. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Leonard Ollennu practice?
Leonard Ollennu practices at 94 Old Short Hills Road, Livingston, NJ 07039. Leonard Ollennu's primary practice is Cooperman Barnabas Medical Center in Livingston, New Jersey, part of RWJBarnabas Health.
What is Leonard Ollennu's office phone number?
The practice phone on file for Leonard Ollennu is (973) 322-5000.
What is Leonard Ollennu's medical license number?
Leonard Ollennu holds New Jersey license 26NJ14910000.
Which hospitals is Leonard Ollennu affiliated with?
Leonard Ollennu practices at Cooperman Barnabas Medical Center in Livingston, New Jersey.
What medical group is Leonard Ollennu part of?
Leonard Ollennu is linked to RWJBarnabas Health Medical Group.
Does Leonard Ollennu accept Medicare?
Yes. CMS lists Leonard Ollennu as accepting Medicare assignment.
How long has Leonard Ollennu been practicing?
Leonard Ollennu graduated from medical school in 2023, 3 years ago.
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