Robert Tassan, M.D.
NPI 1578596508ActiveIndividual· Internal Medicine, Hematology· Westwood, NJ
Internal Medicine, Hematology (M.D.) in Westwood, New Jersey, trained at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $3,661,824 for 905 claims, against $966,523 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 50 companies reporting payments in 2025, $3,573 in all, mostly food and beverage.
Overview
| NPI | 1578596508 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 10, 2006 |
| Last updated in NPPES | Jan 26, 2022 |
| Certified by provider | Jan 26, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology Primary | 207RH0000X | 25MA07452600 | NJ |
| Internal Medicine, Medical Oncology | 207RX0202X | 25MA07452600 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 878 |
|---|---|
| Services billed | 57,631 across 73 procedure codes |
| Paid by Medicare | $966,523 |
Part D prescriptions in 2024
| Prescriptions (claims) | 905 · 1,657 30-day fills |
|---|---|
| Patients | 182 |
| Total drug cost | $3,661,824 |
| Generic share | 54% of claims |
Education and affiliations
| Medical school | Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Regional Cancer Care Associates LLCRed Bank, NJ · 151 clinicians
Hospital affiliations
- Englewood Hospital and Medical CenterEnglewood, NJ
- Hackensack Meridian Health Pascack Valley MedicalWestwood, NJ
- Hackensack University Medical CenterHackensack, NJ
- Valley HospitalParamus, NJ
Industry payments (Open Payments)
- 2025$3,573 · 210 payments from 50 companies
- 2024$3,057 · 174 payments from 42 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $322.27 | 19 |
| Daiichi Sankyo Inc. | $284.50 | 22 |
| Abbvie Inc. | $269.80 | 16 |
| Rigel Pharmaceuticals, Inc. | $247.29 | 14 |
| Incyte Corporation | $209.10 | 13 |
What the 2025 payments were for
- Food and Beverage$3,543 · 209 payments
- Education$30.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology providers in Westwood
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