Quick answers
- Does Sherif Hassan accept Medicare assignment?
- Yes. Medicare's clinician data says Sherif 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 Sherif Hassan see?
- In 2024, CMS data shows 53 Original Medicare patients and 312 services for Sherif Hassan. This counts Original Medicare only and measures volume, not quality.
- What is Sherif Hassan's NPI number?
- 1821093865. 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 Sherif 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 | 53 |
|---|---|
| Services billed to Medicare | 312 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)155 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)16 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)11 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%
- Ischemic heart disease45%
- Diabetes40%
- Arthritis34%
Practice locations
Addresses where Sherif Hassan is enrolled with Medicare (CMS data updated October 2, 2026).
- 9831 Greenbelt Rd, Suite 208Lanham, MD 20706 (301) 277‑3555
Specialties
- Critical Care (Intensivists)primary
Find other Critical Care (Intensivists) doctors in Maryland →
Other critical care doctors in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821093865 |
| 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