Active NPI
Sarah Ann Leffler, MSW, LCSW
- Clinical Social Worker
- Alexandria, VA
National Provider Identifier
1336490499
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 0904007021
- Practice address
- 2121 Eisenhower Avenue
Suite 103
Alexandria, VA 22314 - Phone
- (703) 495-3105
- NPI assigned
- Sep 28, 2012
- Sex
- Female
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | 0904007021 | VA | Primary |
Addresses
Primary practice location
2121 Eisenhower Avenue
Suite 103
Alexandria, VA 22314
Mailing address
2121 Eisenhower Avenue
Suite 103
Alexandria, VA 22314
Phone (703) 495-3105
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Feb 24, 2014 through Feb 24, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 0904007021 | VA | MD | Clinical Social Worker |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1348790400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1748476800000",
"number": "1336490499",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2121 EISENHOWER AVENUE",
"address_2": "SUITE 103",
"city": "ALEXANDRIA",
"state": "VA",
"postal_code": "22314",
"telephone_number": "703-495-3105"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2121 EISENHOWER AVENUE",
"address_2": "SUITE 103",
"city": "ALEXANDRIA",
"state": "VA",
"postal_code": "22314",
"telephone_number": "703-495-3105"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LEFFLER",
"first_name": "SARAH",
"middle_name": "ANN",
"credential": "MSW, LCSW",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2012-09-28",
"last_updated": "2025-05-29",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "VA",
"license": "0904007021",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Alexandria, VA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 29, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.