James Orsini, M.D.
NPI 1659516813 · Hematology & Oncology Physician · Belleville, NJ
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Orsini, M.D. is a Hematology & Oncology Physician provider in Belleville, NJ (NPI 1659516813).
Provider details
- NPI number
- 1659516813
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA08924600 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,925 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 814 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 771 | $8 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 637 | $84 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 381 | $140 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 280 | $148 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 270 | 62 |
| Atorvastatin Calcium | 189 | 29 |
| Pantoprazole Sodium | 111 | 18 |
| Amlodipine Besylate | 105 | 20 |
| Mirtazapine | 83 | 15 |
| Sertraline Hcl | 79 | 11 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$694 across 43 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-12-02
- Last updated
- 2024-04-10
- Certified
- 2024-04-10
Frequently asked questions
- What is James Orsini's NPI number?
- James Orsini's National Provider Identifier (NPI) is 1659516813, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Orsini's specialty?
- James Orsini is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is James Orsini located?
- James Orsini's practice location on file with NPPES is 1 Clara Maass Dr Ste 200, Belleville, NJ 07109-3550.
- What is James Orsini's phone number?
- The practice phone number listed in the NPPES registry for James Orsini is (973) 751-8880.
- Does James Orsini accept Medicare?
- James Orsini is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Orsini's NPI active?
- Yes — James Orsini's NPI (1659516813) is active in the NPPES registry as of the last update on 2024-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.