Active NPI
James George Smirniotopoulos
- Diagnostic Radiology Physician
- Washington, DC
National Provider Identifier
1235172685
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Diagnostic Radiology Physician
- License
- 13050
- Practice address
- 6825 16TH St NW
Washington, DC 20306-0003 - Phone
- (202) 782-2153
- Fax
- (202) 782-0768
- NPI assigned
- Jun 14, 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 |
|---|---|---|---|---|
| Diagnostic Radiology Physician | 2085R0202X | 13050 | DC | Primary |
Addresses
Primary practice location
6825 16TH St NW
Washington, DC 20306-0003
Mailing address
204 Eldrid Dr
Silver Spring, MD 20904-3509
Phone (301) 295-3145
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 13050 | DC | MD | Diagnostic Radiology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1150243200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1235172685",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "204 ELDRID DR",
"city": "SILVER SPRING",
"state": "MD",
"postal_code": "209043509",
"telephone_number": "301-295-3145",
"fax_number": "301-295-4165"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6825 16TH ST NW",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "203060003",
"telephone_number": "202-782-2153",
"fax_number": "202-782-0768"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SMIRNIOTOPOULOS",
"first_name": "JAMES",
"middle_name": "GEORGE",
"name_prefix": "Mr.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-14",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "2085R0202X",
"taxonomy_group": "",
"desc": "Radiology, Diagnostic Radiology",
"state": "DC",
"license": "13050",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Washington, DC
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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.