Active NPI
Erica Hollar, PSY.D.
- Clinical Psychologist
- Hartford, CT
National Provider Identifier
1356933352
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 4017
- Practice address
- 200 Retreat Ave
Hartford, CT 06106-3310 - Phone
- (860) 545-7748
- NPI assigned
- Feb 10, 2021
- 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 Psychologist | 103TC0700X | 4017 | CT | Primary |
Addresses
Primary practice location
200 Retreat Ave
Hartford, CT 06106-3310
Mailing address
200 Retreat Ave
Hartford, CT 06106-3309
Phone (860) 545-7748
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)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 4017 | CT | MD | Clinical Psychologist |
Interoperability endpoints
- erica.hollar@xdr.hhchealthdirect.org
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1612915200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1769558400000",
"number": "1356933352",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "200 RETREAT AVE",
"city": "HARTFORD",
"state": "CT",
"postal_code": "061063309",
"telephone_number": "860-545-7748"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "200 RETREAT AVE",
"city": "HARTFORD",
"state": "CT",
"postal_code": "061063310",
"telephone_number": "860-545-7748"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HOLLAR",
"first_name": "ERICA",
"credential": "PSY.D.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2021-02-10",
"last_updated": "2026-01-28",
"certification_date": "2026-01-28",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "CT",
"license": "4017",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Hartford, CT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 28, 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.