Robert Ivker, DO
NPI 1922133057 · Radiation Oncology Physician · West Orange, NJ
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Ivker, DO is a Radiation Oncology Physician provider in West Orange, NJ (NPI 1922133057).
Provider details
- NPI number
- 1922133057
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 25MB06193300 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
4,661 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 1,785 | $127 |
| Intensity Modulated Treatment Delivery, Single Or Multiple Fields/Arcs,via Narrow Spatially and Temporally Modulated Beams, Binary, Dynamic Mlc, Per Treatment SessionG6015 | 1,752 | $392 |
| Continuing Radiation Therapy Consultation Per Week77336 | 356 | $97 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 352 | $197 |
| Calculation of Radiation Therapy Dose77300 | 153 | $70 |
| Design and Construction of Radiation Treatment Device for High Precision Radiation Therapy77338 | 60 | $509 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Tamsulosin Hcl | 17 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-22
- Last updated
- 2022-03-07
- Certified
- 2022-03-07
Frequently asked questions
- What is Robert Ivker's NPI number?
- Robert Ivker's National Provider Identifier (NPI) is 1922133057, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Ivker's specialty?
- Robert Ivker is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Ivker located?
- Robert Ivker's practice location on file with NPPES is 375 Mount Pleasant Ave Ste 250, West Orange, NJ 07052-2751.
- What is Robert Ivker's phone number?
- The practice phone number listed in the NPPES registry for Robert Ivker is (973) 323-1300.
- Does Robert Ivker accept Medicare?
- Robert Ivker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Ivker's NPI active?
- Yes — Robert Ivker's NPI (1922133057) is active in the NPPES registry as of the last update on 2022-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.