Active NPI
Basil J Vasilopoulos, MD
- Emergency Medicine Physician
- Arlington, VA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- 0101048299
- Practice address
- 1701 North George Mason Drive
Virginia Hospital Center
Arlington, VA 22205 - Phone
- (703) 558-6167
- Fax
- (703) 558-5355
- NPI assigned
- May 17, 2006
- Last updated
- Jul 13, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 0101048299 | VA | Primary |
Addresses
Primary practice location
1701 North George Mason Drive
Virginia Hospital Center
Arlington, VA 22205
Mailing address
1300 Piccard Drive
Suite 202
Rockville, MD 20850-4303
Phone (301) 921-7900
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in DC, VA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 0101048299 | VA | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Emergency Medicine Associates P.a., P.C. | Emergency Medicine | Current | Accepting new patients |
| Baby Doc Inc | Current | Accepting new patients | |
| Emergency Medicine Associates, P.a.,P.C. | Current | Accepting new patients | |
| Falls Church Pediatrics | Current | Accepting new patients | |
| Emergency Medicine Associates P.a., P.C. | Current | Accepting new patients | |
| Mid-Atlantic Critical Care Services,L.L.C. | Past | Accepting new patients |
Locations
20010 Century Blvd
Ste 200
Germantown, MD 20874
1701 N George Mason Dr
Arlington, VA 22205
Phone (703) 558-5000
7263F Arlington Blvd
Falls Church, VA 22042
Phone (703) 775-0777
15225 Heathcote Blvd
Haymarket, VA 20169
Phone (571) 284-1000
11700 Sudley Manor Dr
Manassas, VA 20109
Phone (703) 589-9695
1850 Town Center Pkwy
Reston, VA 20190
Phone (703) 478-0922
42010 Village Center Plz
Stone Ridge, VA 20105
42010 Village Center Plz
Ste 100
Stone Ridge, VA 20105
Phone (703) 542-7921
Organizations & group practices 6
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba Night Watch Pediatric Urgent Care
- Urgent Care Clinic/Center
- Manassas, VA
- NPI 1174004774
DC
-
- Emergency Medicine Physician
- Falls Church, VA
- NPI 1134117393
DC
-
- Internal Medicine Physician
- Dulles, VA
- NPI 1376917070
-
- Internal Medicine Physician
- Culpeper, VA
- NPI 1881559102
-
dba Kids Watch Pediatrics & Urgent Care
- Primary Care Clinic/Center
- Falls Church, VA
- NPI 1588481576
-
- Critical Care Medicine (Internal Medicine) Physician
- Takoma Park, MD
- NPI 1164455853
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1147824000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1932152634",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1300 PICCARD DRIVE",
"address_2": "SUITE 202",
"city": "ROCKVILLE",
"state": "MD",
"postal_code": "208504303",
"telephone_number": "301-921-7900",
"fax_number": "301-921-7915"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1701 NORTH GEORGE MASON DRIVE",
"address_2": "VIRGINIA HOSPITAL CENTER",
"city": "ARLINGTON",
"state": "VA",
"postal_code": "22205",
"telephone_number": "703-558-6167",
"fax_number": "703-558-5355"
}
],
"practiceLocations": [],
"basic": {
"last_name": "VASILOPOULOS",
"first_name": "BASIL",
"middle_name": "J",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-05-17",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "VA",
"license": "0101048299",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Arlington, VA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.