Active NPI
Polly Merck
- Clinical Psychologist
- Somerville, MA
National Provider Identifier
1770065476
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 10001238
- Practice address
- 403 Highland Ave
Somerville, MA 02144-2530 - Phone
- (978) 808-8555
- NPI assigned
- Aug 30, 2018
- 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 |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | 10001238 | MA | Primary |
Addresses
Primary practice location
403 Highland Ave
Somerville, MA 02144-2530
Mailing address
403 Highland Ave
Somerville, MA 02144-2530
Phone (978) 808-8555
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 |
|---|---|---|---|
| 10001238 | MA | MD | Clinical Psychologist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Hri Clinics Inc | Past | Accepting new patients |
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Community/Behavioral Health Agency
- Norwell, MA
- NPI 1922123199
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1535587200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1755648000000",
"number": "1770065476",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "403 HIGHLAND AVE",
"city": "SOMERVILLE",
"state": "MA",
"postal_code": "021442530",
"telephone_number": "978-808-8555"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "403 HIGHLAND AVE",
"city": "SOMERVILLE",
"state": "MA",
"postal_code": "021442530",
"telephone_number": "978-808-8555"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MERCK",
"first_name": "POLLY",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2018-08-30",
"last_updated": "2025-08-20",
"certification_date": "2025-08-20",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "MA",
"license": "10001238",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Somerville, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 20, 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.