Quick answers
- Does Mohammed Amin A. Arnaout accept Medicare assignment?
- Yes. Medicare's clinician data says Mohammed Amin A. Arnaout 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 Mohammed Amin A. Arnaout see?
- In 2024, CMS data shows 27 Original Medicare patients and 217 services for Mohammed Amin A. Arnaout. This counts Original Medicare only and measures volume, not quality.
- What is Mohammed Amin A. Arnaout's NPI number?
- 1760473300. 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 Mohammed Amin A. Arnaout, 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 | 27 |
|---|---|
| Services billed to Medicare | 217 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 65 |
Most frequent services
- Dialysis services, 2-3 physician visits per month (20 years or older) (90961)190 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%
- Chronic kidney disease75%
- Diabetes70%
- Heart failure56%
- Ischemic heart disease48%
Practice locations
Addresses where Mohammed Amin A. Arnaout is enrolled with Medicare (CMS data updated October 2, 2026).
- 55 Fruit StBoston, MA 02114 (617) 724‑0287
Group practices
Medicare enrollment lists Mohammed Amin A. Arnaout as a member of this group (CMS data updated October 2, 2026).
- Massachusetts General Physicians Organization Inc3,558 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Other clinicians in Massachusetts General Physicians Organization Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1974 (52 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760473300 |
| 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
- 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