Active NPI
Katherine Obrien, LMHC
- Mental Health Counselor
- Boston, MA
National Provider Identifier
1255780151
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Mental Health Counselor
- License
- 10809
- Practice address
- 85 E Newton St
Boston, MA 02118-3553 - Phone
- (617) 414-8336
- NPI assigned
- Jun 10, 2016
- Last updated
- Aug 4, 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 |
|---|---|---|---|---|
| Mental Health Counselor | 101YM0800X | 10809 | MA | Primary |
Addresses
Primary practice location
85 E Newton St
Boston, MA 02118-3553
Mailing address
25 Paragon Rd
West Roxbury, MA 02132-5127
Phone (508) 439-1405
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 |
|---|---|---|---|
| 10809 | MA | MD | Clinical Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1465516800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785801600000",
"number": "1255780151",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "25 PARAGON RD",
"city": "WEST ROXBURY",
"state": "MA",
"postal_code": "021325127",
"telephone_number": "508-439-1405"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "85 E NEWTON ST",
"city": "BOSTON",
"state": "MA",
"postal_code": "021183553",
"telephone_number": "617-414-8336"
}
],
"practiceLocations": [],
"basic": {
"last_name": "OBRIEN",
"first_name": "KATHERINE",
"credential": "LMHC",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2016-06-10",
"last_updated": "2026-08-04",
"certification_date": "2026-08-04",
"status": "A"
},
"taxonomies": [
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "MA",
"license": "10809",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Boston, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 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.