Active NPI
Izabela Osiniecka
- Clinical Social Worker
- Herndon, VA
National Provider Identifier
1235720772
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 0904013702
- Practice address
- 585 Grove St Ste 145
Herndon, VA 20170-4791 - Phone
- (248) 910-8201
- NPI assigned
- Jan 28, 2021
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | LC200003985 | DC | |
| Clinical Social Worker | 1041C0700X | 0904013702 | VA | Primary |
Addresses
Primary practice location
585 Grove St Ste 145
Herndon, VA 20170-4791
Mailing address
555 Massachusetts Ave NW Apt 1212
Washington, DC 20001-4740
Phone (248) 910-8201
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| LC200003985 | DC | MD | Clinical Social Worker |
| 0904013702 | VA | MD | Clinical Social Worker |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Thrive Counseling LLC | Current | Accepting new patients |
Locations
1269 Beacon St
Ste 2
Brookline, MA 02446
Phone (617) 934-1974
872 Massachusetts Ave
Ste 2-2
Cambridge, MA 02139
Phone 6173804651 ext. 1992
1000 Jefferson St
Ste 2C
Lynchburg, VA 24504
Phone (434) 528-3263
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1611792000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782864000000",
"number": "1235720772",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "555 MASSACHUSETTS AVE NW APT 1212",
"city": "WASHINGTON",
"state": "DC",
"postal_code": "200014740",
"telephone_number": "248-910-8201"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "585 GROVE ST STE 145",
"city": "HERNDON",
"state": "VA",
"postal_code": "201704791",
"telephone_number": "248-910-8201"
}
],
"practiceLocations": [],
"basic": {
"last_name": "OSINIECKA",
"first_name": "IZABELA",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-01-28",
"last_updated": "2026-07-01",
"certification_date": "2026-07-01",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "DC",
"license": "LC200003985",
"primary": false
},
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "VA",
"license": "0904013702",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Herndon, VA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 1, 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.