Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Robert A Ivker, DO

Individual provider Radiation Oncology Physician · NPI 1922133057

Dr. Robert A Ivker, DO practises Radiation Oncology in West Orange, New Jersey. Graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1991, 35 years ago. Practices with Summit Medical Group PA, a 1,205-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
35
Trained at
Des Moines University of Osteopathic Medicine and Health Sciences
Licensed in
NJ
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

375 Mount Pleasant Ave Ste 250
West Orange, NJ 07052-2751
Phone: (973) 323-1300
Fax: (973) 323-1319
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 25MB06193300 (NJ)

Record details

NPI number1922133057
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 22, 2007
Last updated in NPPESMarch 7, 2022
Certification dateMarch 7, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRADIATION ONCOLOGY
Medical schoolDES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduated 1991 (35 years in practice)
Group practice Summit Medical Group Pa — 1205 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients88
Services billed 4,667 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Summit Medical Group PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1205 clinicians in the practice; 12 are shown here.

Other providers in West Orange