Ellen A. Ronnen, MD
NPI 1003828823ActiveIndividual· Internal Medicine, Hematology & Oncology· East Brunswick, NJ
Internal Medicine, Hematology & Oncology (MD) in East Brunswick, New Jersey, trained at Albert Einstein College of Medicine of Yeshiva University (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $3,095,099 for 1,160 claims, against $1,653,750 paid for services in 2024. Abbvie Inc. was the largest of 7 companies reporting payments in 2025, $148.51 in all, mostly food and beverage.
Overview
| NPI | 1003828823 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 12, 2006 |
| Last updated in NPPES | May 20, 2023 |
| Certified by provider | May 20, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 25MA08099000 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 779 |
|---|---|
| Services billed | 113,015 across 136 procedure codes |
| Paid by Medicare | $1,653,750 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,160 · 1,957 30-day fills |
|---|---|
| Patients | 231 |
| Total drug cost | $3,095,099 |
| Generic share | 50% of claims |
Education and affiliations
| Medical school | Albert Einstein College of Medicine of Yeshiva University |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology |
| Telehealth | Offers telehealth |
Medical group
- Titan Health Partners LLCSomerset, NJ · 99 clinicians
Hospital affiliations
- Raritan Bay Medical CenterPerth Amboy, NJ
- Robert Wood Johnson University HospitalNew Brunswick, NJ
- Robert Wood Johnson University Hospital at HamiltonHamilton, NJ
- Saint Peter's University HospitalNew Brunswick, NJ
Other facilities
- Visiting Nurse Association of Central Jersey Home Care and HospiceHome health agency · Toms River, NJ
- Kessler Rehab CenterInpatient rehabilitation facility · West Orange, NJ
Industry payments (Open Payments)
- 2025$148.51 · 8 payments from 7 companies
- 2024$238.61 · 13 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $35.23 | 2 |
| Celgene Corporation | $21.93 | 1 |
| Astellas Pharma US Inc | $19.52 | 1 |
| Pfizer Inc. | $19.49 | 1 |
| Ipsen Biopharmaceuticals, Inc | $18.80 | 1 |
What the 2025 payments were for
- Food and Beverage$148.51 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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