Active NPI
Nicolas Hernan Smietniansky, LMHC
- Mental Health Counselor
- East Boston, MA
National Provider Identifier
1205740180
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Mental Health Counselor
- License
- LMHC10006349
- Practice address
- 10 Gove St
East Boston, MA 02128-1920 - Phone
- (617) 569-5800
- Fax
- (617) 568-6193
- NPI assigned
- Sep 29, 2026
- Last updated
- Sep 29, 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 |
|---|---|---|---|---|
| Mental Health Counselor | 101YM0800X | LMHC10006349 | MA | Primary |
Addresses
Primary practice location
10 Gove St
East Boston, MA 02128-1920
Mailing address
10 Gove St
East Boston, MA 02128-1920
Phone (617) 569-5800
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1790640000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1790640000000",
"number": "1205740180",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "10 GOVE ST",
"city": "EAST BOSTON",
"state": "MA",
"postal_code": "021281920",
"telephone_number": "617-569-5800"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "10 GOVE ST",
"city": "EAST BOSTON",
"state": "MA",
"postal_code": "021281920",
"telephone_number": "617-569-5800",
"fax_number": "617-568-6193"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SMIETNIANSKY",
"first_name": "NICOLAS",
"middle_name": "HERNAN",
"credential": "LMHC",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2026-09-29",
"last_updated": "2026-09-29",
"certification_date": "2026-09-29",
"status": "A"
},
"taxonomies": [
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "MA",
"license": "LMHC10006349",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in East Boston, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.