Active NPI
Alexandra Jeffery, LMHC
- Mental Health Counselor
- Locust Valley, NY
National Provider Identifier
1619512910
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Mental Health Counselor
- License
- 16734
- Practice address
- 24 The GLN
Locust Valley, NY 11560-2212 - Phone
- (315) 719-2417
- NPI assigned
- Nov 10, 2019
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Mental Health Counselor | 101YM0800X | 010347 | NY | |
| Mental Health Counselor | 101YM0800X | 16734 | FL | Primary |
| Professional Counselor | 101YP2500X | LC11162 | MD |
Addresses
Primary practice location
24 The GLN
Locust Valley, NY 11560-2212
Mailing address
24 The GLN
Locust Valley, NY 11560-2212
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 |
|---|---|---|---|
| 16734 | FL | MD | Mental Health Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1573344000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788393600000",
"number": "1619512910",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "24 THE GLN",
"city": "LOCUST VALLEY",
"state": "NY",
"postal_code": "115602212"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "24 THE GLN",
"city": "LOCUST VALLEY",
"state": "NY",
"postal_code": "115602212",
"telephone_number": "315-719-2417"
}
],
"practiceLocations": [],
"basic": {
"last_name": "JEFFERY",
"first_name": "ALEXANDRA",
"credential": "LMHC",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2019-11-10",
"last_updated": "2026-09-03",
"certification_date": "2026-09-03",
"status": "A"
},
"taxonomies": [
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "NY",
"license": "010347",
"primary": false
},
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "FL",
"license": "16734",
"primary": true
},
{
"code": "101YP2500X",
"taxonomy_group": "",
"desc": "Counselor, Professional",
"state": "MD",
"license": "LC11162",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Locust Valley, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 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.