Israel Grossman, MD
NPI 1255311445 · Hematology & Oncology Physician · Livingston, NJ
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Israel Grossman, MD is a Hematology & Oncology Physician provider in Livingston, NJ (NPI 1255311445).
Provider details
- NPI number
- 1255311445
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA07279900 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
1,845 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 834 | $121 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 484 | $103 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 169 | $152 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 164 | $177 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 70 | $188 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 106 | 29 |
| Apixabanbrand: Eliquis | 100 | 23 |
| Hydroxyurea | 79 | 22 |
| Lenalidomidebrand: Revlimid | 67 | 11 |
| Venetoclaxbrand: Venclexta | 50 | 16 |
| Prednisone | 47 | — |
| Ibrutinibbrand: Imbruvica | 45 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (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
- 2006-01-23
- Last updated
- 2013-06-11
Frequently asked questions
- What is Israel Grossman's NPI number?
- Israel Grossman's National Provider Identifier (NPI) is 1255311445, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Israel Grossman's specialty?
- Israel Grossman is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Israel Grossman located?
- Israel Grossman's practice location on file with NPPES is 94 Old Short Hills Rd, Livingston, NJ 07039-5672.
- What is Israel Grossman's phone number?
- The practice phone number listed in the NPPES registry for Israel Grossman is (973) 322-5200.
- Does Israel Grossman accept Medicare?
- Israel Grossman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Israel Grossman's NPI active?
- Yes — Israel Grossman's NPI (1255311445) is active in the NPPES registry as of the last update on 2013-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.