Active NPI
Elizabeth H. Eustis, PH.D.
- Clinical Psychologist
- Arlington, MA
National Provider Identifier
1831794874
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 11394
- Practice address
- 226 Massachusetts Ave Ste 2a
Arlington, MA 02474-8449 - Phone
- (617) 977-4770
- NPI assigned
- Nov 30, 2020
- 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 | 11394 | MA | Primary |
Addresses
Primary practice location
226 Massachusetts Ave Ste 2a
Arlington, MA 02474-8449
Mailing address
226 Massachusetts Ave Ste 2a
Arlington, MA 02474-8449
Phone (617) 977-4770
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Jan 2, 2024 through Jan 2, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Philosophy
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Cambridge Psychology Group, Inc | Clinical | Current | Accepting new patients |
Locations
226 Massachusetts Ave
Ste 2A
Arlington, MA 02474
Phone (617) 977-4650
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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1606694400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1781827200000",
"number": "1831794874",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "226 MASSACHUSETTS AVE STE 2A",
"city": "ARLINGTON",
"state": "MA",
"postal_code": "024748449",
"telephone_number": "617-977-4770"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "226 MASSACHUSETTS AVE STE 2A",
"city": "ARLINGTON",
"state": "MA",
"postal_code": "024748449",
"telephone_number": "617-977-4770"
}
],
"practiceLocations": [],
"basic": {
"last_name": "EUSTIS",
"first_name": "ELIZABETH",
"middle_name": "H.",
"name_prefix": "Dr.",
"credential": "PH.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-11-30",
"last_updated": "2026-06-19",
"certification_date": "2026-06-19",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "MA",
"license": "11394",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Arlington, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 2026; 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.