Quick answers
- Does Karim J. Rebeiz accept Medicare assignment?
- Yes. Medicare's clinician data says Karim J. Rebeiz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Karim J. Rebeiz see?
- In 2024, CMS data shows 587 Original Medicare patients and 1,264 services for Karim J. Rebeiz. This counts Original Medicare only and measures volume, not quality.
- What is Karim J. Rebeiz's NPI number?
- 1689051278. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Karim J. Rebeiz, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 587 |
|---|---|
| Services billed to Medicare | 1,264 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Ct scan head or brain without contrast (70450)323 services
- Mri scan of brain before and after contrast (70553)172 services
- Mri scan of lower spinal canal before and after contrast (72158)119 services
- Mri scan of middle spinal canal before and after contrast (72157)109 services
- Mri scan of upper spinal canal before and after contrast (72156)104 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)61%
- Arthritis55%
- Anxiety51%
- Diabetes40%
Hospitals where Karim J. Rebeiz works
Medicare's Facility Affiliation Data lists Karim J. Rebeiz at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Overlook Medical CenterSummit, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310051
Practice locations
Addresses where Karim J. Rebeiz is enrolled with Medicare (CMS data updated October 2, 2026).
- 1275 York AveNew York, NY 10065 (212) 639‑2000
- 1847 Peabody DrFalls Church, VA 22043 (480) 306‑6949
- 4001 N Richmond St, Karim J Rebeiz MDArlington, VA 22207 (480) 306‑6949
Group practices
Medicare enrollment lists Karim J. Rebeiz as a member of these groups (CMS data updated October 2, 2026).
- Simonmed Imaging Florida LLC317 clinicians in the group
- MSKCC Radiology Group193 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Other clinicians in Simonmed Imaging Florida LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689051278 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians