Quick answers
- Does Keeran R. Sampat accept Medicare assignment?
- Yes. Medicare's clinician data says Keeran R. Sampat 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 Keeran R. Sampat see?
- In 2024, CMS data shows 573 Original Medicare patients and 88,782 services for Keeran R. Sampat. This counts Original Medicare only and measures volume, not quality.
- What is Keeran R. Sampat's NPI number?
- 1518103811. 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 Keeran R. Sampat, 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 | 573 |
|---|---|
| Services billed to Medicare | 88,782 |
| Different services or procedures | 180 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, pembrolizumab, 1 mg (J9271)6,700 services
- Injection, daratumumab, 10 mg and hyaluronidase-fihj (J9144)5,940 services
- Insertion of needle into vein for collection of blood sample (36415)1,127 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)1,078 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)1,000 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%
- Arthritis52%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)49%
- Ischemic heart disease45%
- Chronic kidney disease28%
Hospitals where Keeran R. Sampat works
Medicare's Facility Affiliation Data lists Keeran R. Sampat 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.
- Inova Alexandria HospitalAlexandria, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490040
- Inova Mount Vernon HospitalAlexandria, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490122
- Virginia Hospital CenterArlington, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490050
Practice locations
Addresses where Keeran R. Sampat is enrolled with Medicare (CMS data updated October 2, 2026).
- 1635 N George Mason Dr, Suite 170Arlington, VA 22205 (703) 894‑3800
- 1701 N George Mason Dr, Suite G 101Arlington, VA 22205 (703) 894‑3800
- 2280 Opitz Blvd, Suite 130Woodbridge, VA 22191 (703) 986‑1600
- 44035 Riverside Pkwy, Suite 300Leesburg, VA 20176 (703) 554‑6800
Group practices
Medicare enrollment lists Keeran R. Sampat as a member of this group (CMS data updated October 2, 2026).
- Virginia Cancer Specialists, P.C.82 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Arlington
Clinicians with the same Medicare primary specialty in Arlington, VA — not a recommendation.
Other clinicians in Virginia Cancer Specialists, P.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Virginia School Of Medicine |
| Graduation year | 2005 (21 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) | 1518103811 |
| 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