Active NPI
Diana Clendaniel
- Mental Health Counselor
- Commack, NY
National Provider Identifier
1639015274
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Mental Health Counselor
- License
- P139641
- Practice address
- 340 Veterans Memorial Hwy Ste 12
Commack, NY 11725-4300 - Phone
- (631) 319-7678
- NPI assigned
- Apr 27, 2026
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Mental Health Counselor | 101YM0800X | P139641 | NY | Primary |
Addresses
Primary practice location
340 Veterans Memorial Hwy Ste 12
Commack, NY 11725-4300
Mailing address
93 Herbert St
Islip, NY 11751-2018
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 |
|---|---|---|---|
| P139641 | NY | MD | Mental Health Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1777248000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1777248000000",
"number": "1639015274",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "93 HERBERT ST",
"city": "ISLIP",
"state": "NY",
"postal_code": "117512018"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "340 VETERANS MEMORIAL HWY STE 12",
"city": "COMMACK",
"state": "NY",
"postal_code": "117254300",
"telephone_number": "631-319-7678"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CLENDANIEL",
"first_name": "DIANA",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2026-04-27",
"last_updated": "2026-04-27",
"certification_date": "2026-04-27",
"status": "A"
},
"taxonomies": [
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "NY",
"license": "P139641",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Commack, NY
- City Medical of Upper East Side, PLLC
- Laura E Clarizio, LMHC
- Karyn Clarke, OTRL
- Rebecca Claudio-Morales, RPA-C
- Devin Clem, CNP
- Cognitive-Behavioral Psychology Services of Long Island
- Cognitive-Behavioral Psychology Services of Long Island PLLC
- Cohen Fashion Optical, LLC
- Shana Rae Cohen-Russo, M.A. CCC/SLP
- Cynthia Ellen Cohen, MSN, ANP-BC
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 27, 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.