Active NPI
Karissa Pivirotto-Britton, MS, PPS, LEP
- Psychologist
- Pleasant Hill, CA
National Provider Identifier
1225833288
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- LEP3939
- Practice address
- 3478 Buskirk Ave Ste 1000
Pleasant Hill, CA 94523-4378 - Phone
- (925) 289-8745
- NPI assigned
- Feb 14, 2025
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Psychologist | 103T00000X | LEP3939 | CA | Primary |
| School Psychologist | 103TS0200X | CA |
Addresses
Primary practice location
3478 Buskirk Ave Ste 1000
Pleasant Hill, CA 94523-4378
Mailing address
1945 Contra Costa Blvd #23132
Pleasant Hill, CA 94523
Phone (209) 761-7895
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
- Credentials
- Master of Science
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| LEP3939 | CA | MD | Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1739491200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1761955200000",
"number": "1225833288",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1945 CONTRA COSTA BLVD #23132",
"city": "PLEASANT HILL",
"state": "CA",
"postal_code": "94523",
"telephone_number": "209-761-7895"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3478 BUSKIRK AVE STE 1000",
"city": "PLEASANT HILL",
"state": "CA",
"postal_code": "945234378",
"telephone_number": "925-289-8745"
}
],
"practiceLocations": [],
"basic": {
"last_name": "PIVIROTTO-BRITTON",
"first_name": "KARISSA",
"name_prefix": "Ms.",
"credential": "MS, PPS, LEP",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2025-02-14",
"last_updated": "2025-11-01",
"certification_date": "2025-11-01",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "CA",
"license": "LEP3939",
"primary": true
},
{
"code": "103TS0200X",
"taxonomy_group": "",
"desc": "Psychologist, School",
"state": "CA",
"license": null,
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Pleasant Hill, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 1, 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.