Quick answers
- Does Mounir Y. Abdelshahid accept Medicare assignment?
- Yes. Medicare's clinician data says Mounir Y. Abdelshahid 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 Mounir Y. Abdelshahid see?
- In 2024, CMS data shows 502 Original Medicare patients and 17,590 services for Mounir Y. Abdelshahid. This counts Original Medicare only and measures volume, not quality.
- What is Mounir Y. Abdelshahid's NPI number?
- 1780872838. 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 Mounir Y. Abdelshahid, 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 | 502 |
|---|---|
| Services billed to Medicare | 17,590 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)11,762 services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)2,565 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)677 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)638 services
- Injection of drug or substance under skin or into muscle (96372)334 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%
- Diabetes66%
- Arthritis60%
- Ischemic heart disease43%
- Depression36%
Hospitals where Mounir Y. Abdelshahid works
Medicare's Facility Affiliation Data lists Mounir Y. Abdelshahid 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.
- Clara Maass Medical CenterBelleville, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310009
- Cooperman Barnabas Medical CenterLivingston, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310076
- Hackensack University Medical CenterHackensack, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310001
- Saint Michael's Medical CenterNewark, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310096
- Trinitas Regional Medical CenterElizabeth, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310027
Practice locations
Addresses where Mounir Y. Abdelshahid is enrolled with Medicare (CMS data updated October 2, 2026).
- 135 Bloomfield Ave, Suite KBloomfield, NJ 07003 (973) 337‑5993
Group practices
Medicare enrollment lists Mounir Y. Abdelshahid as a member of this group (CMS data updated October 2, 2026).
- Clark Medical Service LLC2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Bloomfield
Clinicians with the same Medicare primary specialty in Bloomfield, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 (43 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1780872838 |
| 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