Quick answers
- Does Rana M. Hassan accept Medicare assignment?
- Yes. Medicare's clinician data says Rana M. 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 Rana M. Hassan see?
- In 2024, CMS data shows 876 Original Medicare patients and 3,867 services for Rana M. Hassan. This counts Original Medicare only and measures volume, not quality.
- What is Rana M. Hassan's NPI number?
- 1508993833. 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 Rana M. 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 | 876 |
|---|---|
| Services billed to Medicare | 3,867 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)1,611 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)782 services
- Destruction of precancer skin growth, 1 growth (17000)447 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)188 services
- Biopsy of related skin growth, first growth (11102)186 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 pressure67%
- Arthritis44%
- Diabetes20%
- Anxiety20%
- Ischemic heart disease19%
Practice locations
Addresses where Rana M. Hassan is enrolled with Medicare (CMS data updated October 2, 2026).
- 14995 Shady Grove Rd, Suite 150Rockville, MD 20850 (239) 465‑4916
- 2401 Research Blvd, Suite 260Rockville, MD 20850 (301) 990‑6565
- 419 Holiday CtWarrenton, VA 20186 (540) 878‑5781
- 45155 Research Pl, Suite 140Ashburn, VA 20147 (703) 858‑0500
Group practices
Medicare enrollment lists Rana M. Hassan as a member of these groups (CMS data updated October 2, 2026).
- Advanced Dermatology of Maryland PC44 clinicians in the group
- Advanced Dermatology of Virginia Inc27 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Rockville
Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.
Other clinicians in Advanced Dermatology of Maryland PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1508993833 |
| 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