Active NPI
Stephen Konstantinidis
- Professional Counselor
- Holyoke, MA
National Provider Identifier
1063820439
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Professional Counselor
- License
- LMHC5000941
- Practice address
- 80 Commercial St
Holyoke, MA 01040-4704 - Phone
- (413) 315-5806
- NPI assigned
- Jul 29, 2014
- 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 |
|---|---|---|---|---|
| Professional Counselor | 101YP2500X | LMHC5000941 | MA | Primary |
Addresses
Primary practice location
80 Commercial St
Holyoke, MA 01040-4704
Mailing address
80 Commercial St
Holyoke, MA 01040-4704
Phone (413) 315-5806
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 |
|---|---|---|---|
| LMHC5000941 | MA | MD | Professional Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1406592000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1760054400000",
"number": "1063820439",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "80 COMMERCIAL ST",
"city": "HOLYOKE",
"state": "MA",
"postal_code": "010404704",
"telephone_number": "413-315-5806"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "80 COMMERCIAL ST",
"city": "HOLYOKE",
"state": "MA",
"postal_code": "010404704",
"telephone_number": "413-315-5806"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KONSTANTINIDIS",
"first_name": "STEPHEN",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2014-07-29",
"last_updated": "2025-10-10",
"certification_date": "2025-10-10",
"status": "A"
},
"taxonomies": [
{
"code": "101YP2500X",
"taxonomy_group": "",
"desc": "Counselor, Professional",
"state": "MA",
"license": "LMHC5000941",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Holyoke, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 10, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.