Active NPI
Mary Ann Holmes
- Clinical Social Worker
- Northampton, MA
National Provider Identifier
1841108446
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- Practice address
- 17 Brewster CT
Northampton, MA 01060-3801 - Phone
- (413) 587-3265
- NPI assigned
- Sep 1, 2026
- Sex
- Female
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | Primary |
Addresses
Primary practice location
17 Brewster CT
Northampton, MA 01060-3801
Mailing address
34 East St
South Hadley, MA 01075-2116
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": "1788220800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788220800000",
"number": "1841108446",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "34 EAST ST",
"city": "SOUTH HADLEY",
"state": "MA",
"postal_code": "010752116"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "17 BREWSTER CT",
"city": "NORTHAMPTON",
"state": "MA",
"postal_code": "010603801",
"telephone_number": "413-587-3265"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HOLMES",
"first_name": "MARY ANN",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2026-09-01",
"last_updated": "2026-09-01",
"certification_date": "2026-09-01",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Northampton, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.