Quick answers
- Does Nassef F. Hassan accept Medicare assignment?
- Yes. Medicare's clinician data says Nassef F. Hassan 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 Nassef F. Hassan see?
- In 2024, CMS data shows 51 Original Medicare patients and 4,377 services for Nassef F. Hassan. This counts Original Medicare only and measures volume, not quality.
- What is Nassef F. Hassan's NPI number?
- 1902867807. 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 Nassef F. Hassan, 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 | 51 |
|---|---|
| Services billed to Medicare | 4,377 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes (97110)945 services
- Application of ultrasound, each 15 minutes (97035)943 services
- Therapy procedure using manual technique, each 15 minutes (97140)939 services
- Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care (G0283)636 services
- Therapy procedure using functional activities (97530)442 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 cholesterol75%
- High blood pressure73%
- Arthritis65%
- Diabetes53%
- Asthma39%
- Ischemic heart disease33%
Practice locations
Addresses where Nassef F. Hassan is enrolled with Medicare (CMS data updated October 2, 2026).
- 6810 5th AveBrooklyn, NY 11220 (718) 491‑4002
Specialties
Find other Physical Medicine and Rehabilitation doctors in New York →
Other rehabilitation doctors in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1979 (47 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) | 1902867807 |
| 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