Active NPI
Rhiannon Nicole Chiacchiaro, LMHC
- Mental Health Counselor
- Westborough, MA
National Provider Identifier
1992370589
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Mental Health Counselor
- License
- LMHC10004502
- Practice address
- 57 E Main St Ste 217
Westborough, MA 01581-1457 - Phone
- (201) 658-6396
- NPI assigned
- May 25, 2021
- 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 | LMHC10004502 | MA | Primary |
Addresses
Primary practice location
57 E Main St Ste 217
Westborough, MA 01581-1457
Mailing address
73A Beaver St
Milford, MA 01757-3648
Phone (201) 658-6396
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Aug 1, 2025 through Aug 1, 2027
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| LMHC10004502 | MA | MD | Mental Health Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1621900800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1753833600000",
"number": "1992370589",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "73A BEAVER ST",
"city": "MILFORD",
"state": "MA",
"postal_code": "017573648",
"telephone_number": "201-658-6396"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "57 E MAIN ST STE 217",
"city": "WESTBOROUGH",
"state": "MA",
"postal_code": "015811457",
"telephone_number": "201-658-6396"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHIACCHIARO",
"first_name": "RHIANNON",
"middle_name": "NICOLE",
"name_prefix": "Ms.",
"credential": "LMHC",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-05-25",
"last_updated": "2025-07-30",
"certification_date": "2025-07-30",
"status": "A"
},
"taxonomies": [
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "MA",
"license": "LMHC10004502",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Westborough, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 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.