HILLEL J. KARP MD
NPI 1902851421
Radiology - Diagnostic Radiology in Maplewood, NJ
About Hillel J. Karp Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HILLEL J. KARP MD (NPI 1902851421) is an individual diagnostic radiology provider in Maplewood, New Jersey, licensed in New Jersey (25MA03733100) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Jersey City Medical Center, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1975).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 7
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Hillel J. Karp Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Hillel Karp reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Livingston, NJ 07039
- Reassigned Medicare billing, New Jersey enrollment
- 1,913 clinicians in this Medicare group
Elizabeth, NJ 07208
- Reassigned Medicare billing, New Jersey enrollment
- 216 clinicians in this Medicare group
New Brunswick, NJ 08901
- Reassigned Medicare billing, New Jersey enrollment
- 306 clinicians in this Medicare group
New Brunswick, NJ 08901
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: University Radiology At Robert Wood Johnson, LLC
- 153 clinicians in this Medicare group
East Brunswick, NJ 08816
- Reassigned Medicare billing, New Jersey enrollment
- 239 clinicians in this Medicare group
Tinton Falls, NJ 07701
- Reassigned Medicare billing, New Jersey enrollment
- 217 clinicians in this Medicare group
Neptune, NJ 07753
- Reassigned Medicare billing, New Jersey enrollment
- 222 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 36
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Jersey City Medical Center
Acute Care Hospitals · Jersey City, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07040 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MAPLEWOOD, NJ 07040
MAPLEWOOD, NJ 07040
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Hillel Karp's NPI number?
The NPI number for Hillel Karp is 1902851421. It was assigned to this individual provider in the NPPES registry on May 23, 2006.
Where is Hillel Karp located?
Hillel Karp practices at 2130 Millburn Avenue, Maplewood, NJ 07040. The listed phone number is (973) 912-0404.
What is Hillel Karp's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Hillel Karp enrolled in Medicare?
Yes. Hillel Karp is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Hillel Karp's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hillel Karp reassigns Medicare benefits to 7 organizations: Rwjbh Observation Associates LLC (Livingston, NJ), University Radiology At Trinitas, LLC (Elizabeth, NJ), Robert Wood Johnson Medical Associates (New Brunswick, NJ), Rwjuh Imaging At Plum Street, LLC (New Brunswick, NJ), University Radiology Group, LLC (East Brunswick, NJ) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Hillel Karp's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Hillel Karp affiliated with any hospitals?
According to CMS data, Hillel Karp is affiliated with Jersey City Medical Center.
When was this NPI record last updated?
The NPPES record for Hillel Karp was last updated on May 1, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.