Hillel Karp, MD
NPI 1902851421 · Diagnostic Radiology Physician · Maplewood, NJ
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hillel Karp, MD is a Diagnostic Radiology Physician provider in Maplewood, NJ (NPI 1902851421).
Provider details
- NPI number
- 1902851421
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA03733100 (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
20 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
2,581 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 1,180 | $9 |
| X-Ray of Chest, 2 Views71046 | 180 | $11 |
| X-Ray of Knee, 4 Or More Views73564 | 110 | $12 |
| X-Ray of Hip, 2-3 Views73502 | 102 | $11 |
| X-Ray of Foot, Minimum of 3 Views73630 | 89 | $8 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 77 | $10 |
| X-Ray of Ankle, Minimum of 3 Views73610 | 66 |
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) |
|---|---|
| Nortriptyline Hcl | 11 |
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
- 2006-05-23
- Last updated
- 2008-05-01
Frequently asked questions
- What is Hillel Karp's NPI number?
- Hillel Karp's National Provider Identifier (NPI) is 1902851421, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hillel Karp's specialty?
- Hillel Karp is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Hillel Karp located?
- Hillel Karp's practice location on file with NPPES is 2130 Millburn Avenue, Maplewood, NJ 07040.
- What is Hillel Karp's phone number?
- The practice phone number listed in the NPPES registry for Hillel Karp is (973) 912-0404.
- Does Hillel Karp accept Medicare?
- Hillel Karp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hillel Karp's NPI active?
- Yes — Hillel Karp's NPI (1902851421) is active in the NPPES registry as of the last update on 2008-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.